java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/array-tiling/rewnif.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 00:50:20,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 00:50:20,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 00:50:20,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 00:50:20,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 00:50:20,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 00:50:20,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 00:50:20,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 00:50:20,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 00:50:20,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 00:50:20,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 00:50:20,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 00:50:20,666 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 00:50:20,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 00:50:20,668 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 00:50:20,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 00:50:20,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 00:50:20,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 00:50:20,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 00:50:20,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 00:50:20,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 00:50:20,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 00:50:20,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 00:50:20,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 00:50:20,693 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-07 00:50:20,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 00:50:20,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 00:50:20,714 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 00:50:20,715 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 00:50:20,736 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 00:50:20,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 00:50:20,739 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 00:50:20,739 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 00:50:20,739 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 00:50:20,740 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 00:50:20,740 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 00:50:20,740 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 00:50:20,740 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 00:50:20,740 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 00:50:20,741 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 00:50:20,742 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 00:50:20,742 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 00:50:20,742 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 00:50:20,742 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 00:50:20,743 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 00:50:20,743 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 00:50:20,743 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 00:50:20,743 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 00:50:20,743 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 00:50:20,744 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 00:50:20,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 00:50:20,744 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 00:50:20,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 00:50:20,744 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 00:50:20,745 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 00:50:20,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 00:50:20,745 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 00:50:20,745 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 00:50:21,078 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 00:50:21,096 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 00:50:21,103 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 00:50:21,105 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 00:50:21,105 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 00:50:21,106 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/rewnif.c [2019-10-07 00:50:21,186 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3192f24d5/a689f337b226460498904234e4aabd84/FLAG27f9d1b0a [2019-10-07 00:50:21,673 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 00:50:21,673 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-tiling/rewnif.c [2019-10-07 00:50:21,680 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3192f24d5/a689f337b226460498904234e4aabd84/FLAG27f9d1b0a [2019-10-07 00:50:22,024 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3192f24d5/a689f337b226460498904234e4aabd84 [2019-10-07 00:50:22,034 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 00:50:22,036 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 00:50:22,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 00:50:22,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 00:50:22,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 00:50:22,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:50:22" (1/1) ... [2019-10-07 00:50:22,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26ef005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:50:22, skipping insertion in model container [2019-10-07 00:50:22,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:50:22" (1/1) ... [2019-10-07 00:50:22,055 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 00:50:22,073 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 00:50:22,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 00:50:22,256 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 00:50:22,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 00:50:22,293 INFO L192 MainTranslator]: Completed translation [2019-10-07 00:50:22,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:50:22 WrapperNode [2019-10-07 00:50:22,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 00:50:22,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 00:50:22,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 00:50:22,295 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 00:50:22,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:50:22" (1/1) ... [2019-10-07 00:50:22,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:50:22" (1/1) ... [2019-10-07 00:50:22,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:50:22" (1/1) ... [2019-10-07 00:50:22,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:50:22" (1/1) ... [2019-10-07 00:50:22,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:50:22" (1/1) ... [2019-10-07 00:50:22,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:50:22" (1/1) ... [2019-10-07 00:50:22,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:50:22" (1/1) ... [2019-10-07 00:50:22,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 00:50:22,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 00:50:22,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 00:50:22,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 00:50:22,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:50:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 00:50:22,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 00:50:22,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 00:50:22,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-07 00:50:22,494 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 00:50:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 00:50:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 00:50:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-07 00:50:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 00:50:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 00:50:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 00:50:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 00:50:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 00:50:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 00:50:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 00:50:22,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 00:50:22,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 00:50:22,851 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 00:50:22,852 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-07 00:50:22,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:50:22 BoogieIcfgContainer [2019-10-07 00:50:22,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 00:50:22,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 00:50:22,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 00:50:22,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 00:50:22,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 12:50:22" (1/3) ... [2019-10-07 00:50:22,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b4b4b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:50:22, skipping insertion in model container [2019-10-07 00:50:22,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:50:22" (2/3) ... [2019-10-07 00:50:22,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b4b4b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:50:22, skipping insertion in model container [2019-10-07 00:50:22,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:50:22" (3/3) ... [2019-10-07 00:50:22,862 INFO L109 eAbstractionObserver]: Analyzing ICFG rewnif.c [2019-10-07 00:50:22,872 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 00:50:22,884 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 00:50:22,898 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 00:50:22,931 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 00:50:22,931 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 00:50:22,931 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 00:50:22,931 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 00:50:22,931 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 00:50:22,932 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 00:50:22,932 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 00:50:22,932 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 00:50:22,955 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-10-07 00:50:22,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-07 00:50:22,960 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:50:22,961 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:50:22,963 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:50:22,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:50:22,968 INFO L82 PathProgramCache]: Analyzing trace with hash 698834392, now seen corresponding path program 1 times [2019-10-07 00:50:22,975 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:50:22,975 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:50:22,976 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:50:22,976 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:50:22,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:50:23,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:50:23,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:50:23,165 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:50:23,165 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 00:50:23,166 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 00:50:23,169 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 00:50:23,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 00:50:23,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 00:50:23,184 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2019-10-07 00:50:23,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:50:23,245 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2019-10-07 00:50:23,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 00:50:23,248 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-10-07 00:50:23,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:50:23,255 INFO L225 Difference]: With dead ends: 34 [2019-10-07 00:50:23,255 INFO L226 Difference]: Without dead ends: 17 [2019-10-07 00:50:23,258 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 00:50:23,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-10-07 00:50:23,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-10-07 00:50:23,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-10-07 00:50:23,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-10-07 00:50:23,291 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 12 [2019-10-07 00:50:23,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:50:23,292 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-10-07 00:50:23,292 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 00:50:23,292 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-10-07 00:50:23,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-07 00:50:23,293 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:50:23,294 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:50:23,294 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:50:23,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:50:23,294 INFO L82 PathProgramCache]: Analyzing trace with hash -494855414, now seen corresponding path program 1 times [2019-10-07 00:50:23,295 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:50:23,295 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:50:23,295 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:50:23,295 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:50:23,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:50:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:50:23,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:50:23,374 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:50:23,374 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:50:23,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:50:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:50:23,431 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 00:50:23,438 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:50:23,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:50:23,495 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:50:23,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:50:23,543 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:50:23,575 INFO L162 IcfgInterpreter]: Started Sifa with 13 locations of interest [2019-10-07 00:50:23,575 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:50:23,601 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:50:23,619 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:50:23,620 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:50:23,890 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 30 for LOIs [2019-10-07 00:50:24,353 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2019-10-07 00:50:24,370 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 16 for LOIs [2019-10-07 00:50:24,380 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:50:24,380 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:50:24,381 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 91#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (exists ((v_main_~a~0.base_BEFORE_CALL_1 Int) (v_main_~a~0.offset_BEFORE_CALL_1 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_1 0) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (<= 0 v_main_~a~0.offset_BEFORE_CALL_1) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_1) v_main_~a~0.offset_BEFORE_CALL_1)) (< 0 ~SIZE~0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_1 0) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_1) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (not (<= 0 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_1) v_main_~a~0.offset_BEFORE_CALL_1))) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (< 0 ~SIZE~0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:50:24,381 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 100#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= ~MAX~0 |old(~MAX~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~SIZE~0)| ~SIZE~0)) [2019-10-07 00:50:24,382 INFO L193 IcfgInterpreter]: Reachable states at location L14 satisfy 38#(and (<= ~MAX~0 100000) (= |old(~SIZE~0)| 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 (+ ~SIZE~0 2147483648)) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~SIZE~0)|) (= |#valid| |old(#valid)|) (<= ~SIZE~0 2147483647) (<= |old(~SIZE~0)| 0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (<= 100000 ~MAX~0)) [2019-10-07 00:50:24,382 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 96#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (exists ((v_main_~a~0.base_BEFORE_CALL_1 Int) (v_main_~a~0.offset_BEFORE_CALL_1 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_1 0) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (<= 0 v_main_~a~0.offset_BEFORE_CALL_1) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_1) v_main_~a~0.offset_BEFORE_CALL_1)) (< 0 ~SIZE~0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_1 0) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_1) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (not (<= 0 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_1) v_main_~a~0.offset_BEFORE_CALL_1))) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (< 0 ~SIZE~0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:50:24,383 INFO L193 IcfgInterpreter]: Reachable states at location L28-3 satisfy 71#(and (= |old(~SIZE~0)| 0) (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= |main_#t~malloc2.offset| 0) (<= ~SIZE~0 100000) (<= 0 main_~i~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (<= 0 main_~a~0.offset) (<= 0 |#NULL.base|) (= |main_#t~malloc2.offset| 0) (= ~MAX~0 100000) (<= 0 |main_#t~malloc2.offset|) (<= main_~i~0 0) (<= 0 |old(~SIZE~0)|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= |old(~SIZE~0)| 0) (= |#NULL.offset| 0) (= main_~i~0 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:24,383 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 86#(and (exists ((v_main_~a~0.base_BEFORE_CALL_1 Int) (v_main_~a~0.offset_BEFORE_CALL_1 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_1 0) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (<= 0 v_main_~a~0.offset_BEFORE_CALL_1) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_1) v_main_~a~0.offset_BEFORE_CALL_1)) (< 0 ~SIZE~0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_1 0) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_1) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (not (<= 0 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_1) v_main_~a~0.offset_BEFORE_CALL_1))) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (< 0 ~SIZE~0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:50:24,384 INFO L193 IcfgInterpreter]: Reachable states at location L19-3 satisfy 66#(and (or (and (= |old(~SIZE~0)| 0) (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= |main_#t~malloc2.offset| 0) (<= ~SIZE~0 100000) (<= 0 main_~i~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (<= 0 main_~a~0.offset) (<= 0 |#NULL.base|) (= |main_#t~malloc2.offset| 0) (= ~MAX~0 100000) (<= 0 |main_#t~malloc2.offset|) (<= 0 |old(~SIZE~0)|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= |#NULL.offset| 0)) (and (<= ~MAX~0 100000) (= |old(~SIZE~0)| 0) (<= |main_#t~malloc2.offset| 0) (<= 0 main_~i~0) (= 0 |#NULL.base|) (< ~SIZE~0 ~MAX~0) (< 1 ~SIZE~0) (= 0 |main_#t~malloc2.offset|) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (= |#valid| (store |old(#valid)| |main_#t~malloc2.base| 1)) (<= 0 |#NULL.offset|) (= main_~a~0.offset |main_#t~malloc2.offset|) (<= ~SIZE~0 2147483647) (< |#StackHeapBarrier| |main_#t~malloc2.base|) (= (store |old(#length)| |main_#t~malloc2.base| (* 4 ~SIZE~0)) |#length|) (<= ~SIZE~0 100000) (not (= |main_#t~malloc2.base| 0)) (<= |#NULL.base| 0) (<= 0 (+ ~SIZE~0 2147483648)) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (<= 0 main_~a~0.offset) (<= 0 |main_#t~malloc2.offset|) (<= main_~i~0 0) (= 0 (select |old(#valid)| 0)) (<= |#NULL.offset| 0) (<= 0 |old(~SIZE~0)|) (= (select |old(#valid)| |main_#t~malloc2.base|) 0) (= |main_#t~malloc2.base| main_~a~0.base) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= main_~i~0 0))) (<= |old(~SIZE~0)| 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:24,384 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (<= ~MAX~0 100000) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= ~SIZE~0 0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |#valid| 0)) (<= 0 ~SIZE~0) (= |#NULL.offset| 0) (<= ~SIZE~0 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:24,384 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (<= ~MAX~0 100000) (= |old(~SIZE~0)| 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~SIZE~0)|) (= |#valid| |old(#valid)|) (<= |old(~SIZE~0)| 0) (<= 0 ~SIZE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (<= ~SIZE~0 0) (= |old(~SIZE~0)| ~SIZE~0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:24,385 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 105#(and (<= ~MAX~0 100000) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= ~SIZE~0 0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= |#valid| (store |old(#valid)| 0 0)) (<= 0 ~SIZE~0) (= |#NULL.offset| 0) (<= ~SIZE~0 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:24,385 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:50:24,385 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 81#(exists ((v_main_~a~0.base_BEFORE_CALL_1 Int) (v_main_~a~0.offset_BEFORE_CALL_1 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_1 0) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (<= 0 v_main_~a~0.offset_BEFORE_CALL_1) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_1) v_main_~a~0.offset_BEFORE_CALL_1)) (< 0 ~SIZE~0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_1 0) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_1) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (not (<= 0 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_1) v_main_~a~0.offset_BEFORE_CALL_1))) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (< 0 ~SIZE~0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) [2019-10-07 00:50:24,386 INFO L193 IcfgInterpreter]: Reachable states at location L30 satisfy 76#(and (= |old(~SIZE~0)| 0) (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= |main_#t~malloc2.offset| 0) (<= ~SIZE~0 100000) (<= 0 main_~i~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (< main_~i~0 ~SIZE~0) (<= 0 main_~a~0.offset) (<= 0 |#NULL.base|) (= |main_#t~malloc2.offset| 0) (= ~MAX~0 100000) (<= 0 |main_#t~malloc2.offset|) (<= main_~i~0 0) (<= 0 |old(~SIZE~0)|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= |main_#t~mem5| (select (select |#memory_int| main_~a~0.base) (+ (* 4 main_~i~0) main_~a~0.offset))) (<= |old(~SIZE~0)| 0) (= |#NULL.offset| 0) (= main_~i~0 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:24,890 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 25 [2019-10-07 00:50:25,173 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:50:25,173 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 11] total 17 [2019-10-07 00:50:25,176 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-10-07 00:50:25,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-07 00:50:25,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2019-10-07 00:50:25,177 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 17 states. [2019-10-07 00:50:25,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:50:25,610 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2019-10-07 00:50:25,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-07 00:50:25,611 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 13 [2019-10-07 00:50:25,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:50:25,612 INFO L225 Difference]: With dead ends: 36 [2019-10-07 00:50:25,612 INFO L226 Difference]: Without dead ends: 27 [2019-10-07 00:50:25,615 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2019-10-07 00:50:25,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-10-07 00:50:25,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 18. [2019-10-07 00:50:25,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-07 00:50:25,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2019-10-07 00:50:25,625 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2019-10-07 00:50:25,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:50:25,627 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2019-10-07 00:50:25,627 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-10-07 00:50:25,627 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2019-10-07 00:50:25,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-07 00:50:25,628 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:50:25,629 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:50:25,832 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:50:25,833 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:50:25,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:50:25,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1155466264, now seen corresponding path program 2 times [2019-10-07 00:50:25,833 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:50:25,833 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:50:25,833 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:50:25,834 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:50:25,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:50:25,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:50:26,070 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:50:26,071 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:50:26,071 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:50:26,071 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:50:26,116 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-10-07 00:50:26,117 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-07 00:50:26,118 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 21 conjunts are in the unsatisfiable core [2019-10-07 00:50:26,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:50:26,498 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:50:26,499 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:50:26,653 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:50:26,654 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:50:26,656 INFO L162 IcfgInterpreter]: Started Sifa with 13 locations of interest [2019-10-07 00:50:26,656 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:50:26,657 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:50:26,657 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:50:26,658 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:50:26,733 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 30 for LOIs [2019-10-07 00:50:27,090 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2019-10-07 00:50:27,110 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 16 for LOIs [2019-10-07 00:50:27,123 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:50:27,124 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:50:27,124 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 91#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (exists ((v_main_~a~0.base_BEFORE_CALL_2 Int) (v_main_~a~0.offset_BEFORE_CALL_2 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_2) v_main_~a~0.offset_BEFORE_CALL_2)) (<= 0 v_main_~a~0.offset_BEFORE_CALL_2) (< 0 ~SIZE~0) (= |#NULL.offset| 0) (<= v_main_~a~0.offset_BEFORE_CALL_2 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_2) (not (<= 0 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_2) v_main_~a~0.offset_BEFORE_CALL_2))) (< 0 ~SIZE~0) (= |#NULL.offset| 0) (<= v_main_~a~0.offset_BEFORE_CALL_2 0) (<= 100000 ~MAX~0)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:50:27,125 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 100#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= ~MAX~0 |old(~MAX~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~SIZE~0)| ~SIZE~0)) [2019-10-07 00:50:27,126 INFO L193 IcfgInterpreter]: Reachable states at location L14 satisfy 38#(and (<= ~MAX~0 100000) (= |old(~SIZE~0)| 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 (+ ~SIZE~0 2147483648)) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (<= 0 |old(~SIZE~0)|) (<= ~SIZE~0 2147483647) (= |#valid| |old(#valid)|) (<= |old(~SIZE~0)| 0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (<= 100000 ~MAX~0)) [2019-10-07 00:50:27,126 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 96#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (exists ((v_main_~a~0.base_BEFORE_CALL_2 Int) (v_main_~a~0.offset_BEFORE_CALL_2 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_2) v_main_~a~0.offset_BEFORE_CALL_2)) (<= 0 v_main_~a~0.offset_BEFORE_CALL_2) (< 0 ~SIZE~0) (= |#NULL.offset| 0) (<= v_main_~a~0.offset_BEFORE_CALL_2 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_2) (not (<= 0 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_2) v_main_~a~0.offset_BEFORE_CALL_2))) (< 0 ~SIZE~0) (= |#NULL.offset| 0) (<= v_main_~a~0.offset_BEFORE_CALL_2 0) (<= 100000 ~MAX~0)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:50:27,126 INFO L193 IcfgInterpreter]: Reachable states at location L28-3 satisfy 71#(and (= |old(~SIZE~0)| 0) (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= |main_#t~malloc2.offset| 0) (<= ~SIZE~0 100000) (<= 0 main_~i~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (<= 0 main_~a~0.offset) (<= 0 |#NULL.base|) (= |main_#t~malloc2.offset| 0) (= ~MAX~0 100000) (<= 0 |main_#t~malloc2.offset|) (<= main_~i~0 0) (<= 0 |old(~SIZE~0)|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= |old(~SIZE~0)| 0) (= |#NULL.offset| 0) (= main_~i~0 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:27,127 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 86#(and (exists ((v_main_~a~0.base_BEFORE_CALL_2 Int) (v_main_~a~0.offset_BEFORE_CALL_2 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_2) v_main_~a~0.offset_BEFORE_CALL_2)) (<= 0 v_main_~a~0.offset_BEFORE_CALL_2) (< 0 ~SIZE~0) (= |#NULL.offset| 0) (<= v_main_~a~0.offset_BEFORE_CALL_2 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_2) (not (<= 0 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_2) v_main_~a~0.offset_BEFORE_CALL_2))) (< 0 ~SIZE~0) (= |#NULL.offset| 0) (<= v_main_~a~0.offset_BEFORE_CALL_2 0) (<= 100000 ~MAX~0)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:50:27,128 INFO L193 IcfgInterpreter]: Reachable states at location L19-3 satisfy 66#(and (or (and (= |old(~SIZE~0)| 0) (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= |main_#t~malloc2.offset| 0) (<= ~SIZE~0 100000) (= |main_#t~malloc2.offset| 0) (= ~MAX~0 100000) (= |#NULL.offset| 0)) (and (<= ~MAX~0 100000) (= |old(~SIZE~0)| 0) (<= |main_#t~malloc2.offset| 0) (= 0 |#NULL.base|) (< ~SIZE~0 ~MAX~0) (< 1 ~SIZE~0) (= 0 |main_#t~malloc2.offset|) (= ~MAX~0 100000) (= |#valid| (store |old(#valid)| |main_#t~malloc2.base| 1)) (= main_~a~0.offset |main_#t~malloc2.offset|) (<= ~SIZE~0 2147483647) (< |#StackHeapBarrier| |main_#t~malloc2.base|) (= (store |old(#length)| |main_#t~malloc2.base| (* 4 ~SIZE~0)) |#length|) (<= ~SIZE~0 100000) (not (= |main_#t~malloc2.base| 0)) (<= 0 (+ ~SIZE~0 2147483648)) (<= main_~i~0 0) (= 0 (select |old(#valid)| 0)) (= (select |old(#valid)| |main_#t~malloc2.base|) 0) (= |main_#t~malloc2.base| main_~a~0.base) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= main_~i~0 0))) (<= 0 main_~i~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (<= 0 main_~a~0.offset) (<= 0 |#NULL.base|) (<= 0 |main_#t~malloc2.offset|) (<= 0 |old(~SIZE~0)|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= |old(~SIZE~0)| 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:27,128 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (<= ~MAX~0 100000) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= ~SIZE~0 0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |#valid| 0)) (<= 0 ~SIZE~0) (= |#NULL.offset| 0) (<= ~SIZE~0 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:27,129 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (<= ~MAX~0 100000) (= |old(~SIZE~0)| 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (<= 0 |old(~SIZE~0)|) (= |#valid| |old(#valid)|) (<= |old(~SIZE~0)| 0) (<= 0 ~SIZE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (<= ~SIZE~0 0) (= |old(~SIZE~0)| ~SIZE~0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:27,129 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 105#(and (<= ~MAX~0 100000) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= ~SIZE~0 0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= |#valid| (store |old(#valid)| 0 0)) (<= 0 ~SIZE~0) (= |#NULL.offset| 0) (<= ~SIZE~0 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:27,135 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:50:27,135 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 81#(exists ((v_main_~a~0.base_BEFORE_CALL_2 Int) (v_main_~a~0.offset_BEFORE_CALL_2 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_2) v_main_~a~0.offset_BEFORE_CALL_2)) (<= 0 v_main_~a~0.offset_BEFORE_CALL_2) (< 0 ~SIZE~0) (= |#NULL.offset| 0) (<= v_main_~a~0.offset_BEFORE_CALL_2 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_2) (not (<= 0 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_2) v_main_~a~0.offset_BEFORE_CALL_2))) (< 0 ~SIZE~0) (= |#NULL.offset| 0) (<= v_main_~a~0.offset_BEFORE_CALL_2 0) (<= 100000 ~MAX~0)))) [2019-10-07 00:50:27,136 INFO L193 IcfgInterpreter]: Reachable states at location L30 satisfy 76#(and (= |old(~SIZE~0)| 0) (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= |main_#t~malloc2.offset| 0) (<= ~SIZE~0 100000) (<= 0 main_~i~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (< main_~i~0 ~SIZE~0) (<= 0 main_~a~0.offset) (<= 0 |#NULL.base|) (= |main_#t~malloc2.offset| 0) (= ~MAX~0 100000) (<= 0 |main_#t~malloc2.offset|) (<= main_~i~0 0) (<= 0 |old(~SIZE~0)|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= |main_#t~mem5| (select (select |#memory_int| main_~a~0.base) (+ (* 4 main_~i~0) main_~a~0.offset))) (<= |old(~SIZE~0)| 0) (= |#NULL.offset| 0) (= main_~i~0 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:28,120 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:50:28,120 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 11] total 31 [2019-10-07 00:50:28,121 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-10-07 00:50:28,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-10-07 00:50:28,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=815, Unknown=0, NotChecked=0, Total=930 [2019-10-07 00:50:28,122 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 31 states. [2019-10-07 00:50:28,564 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-10-07 00:50:28,780 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-10-07 00:50:28,947 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-10-07 00:50:29,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:50:29,413 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2019-10-07 00:50:29,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-07 00:50:29,414 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 14 [2019-10-07 00:50:29,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:50:29,417 INFO L225 Difference]: With dead ends: 30 [2019-10-07 00:50:29,418 INFO L226 Difference]: Without dead ends: 28 [2019-10-07 00:50:29,419 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=192, Invalid=1290, Unknown=0, NotChecked=0, Total=1482 [2019-10-07 00:50:29,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-10-07 00:50:29,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2019-10-07 00:50:29,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-10-07 00:50:29,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2019-10-07 00:50:29,431 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 14 [2019-10-07 00:50:29,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:50:29,432 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2019-10-07 00:50:29,432 INFO L463 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-10-07 00:50:29,432 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2019-10-07 00:50:29,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-07 00:50:29,433 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:50:29,433 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:50:29,637 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:50:29,638 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:50:29,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:50:29,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1648168292, now seen corresponding path program 1 times [2019-10-07 00:50:29,639 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:50:29,639 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:50:29,639 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:50:29,639 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:50:29,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:50:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:50:29,824 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:50:29,824 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:50:29,824 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:50:29,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:50:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:50:29,876 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 21 conjunts are in the unsatisfiable core [2019-10-07 00:50:29,880 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:50:30,124 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:50:30,124 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:50:30,237 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:50:30,237 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:50:30,239 INFO L162 IcfgInterpreter]: Started Sifa with 16 locations of interest [2019-10-07 00:50:30,239 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:50:30,240 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:50:30,240 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:50:30,241 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:50:30,296 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 30 for LOIs [2019-10-07 00:50:30,723 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 40 for LOIs [2019-10-07 00:50:30,735 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 16 for LOIs [2019-10-07 00:50:30,740 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:50:30,740 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:50:30,741 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 180#(and (exists ((v_main_~a~0.base_BEFORE_CALL_11 Int) (v_main_~a~0.offset_BEFORE_CALL_11 Int) (v_main_~i~0_BEFORE_CALL_13 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_13 ~SIZE~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= v_main_~a~0.offset_BEFORE_CALL_11 0) (<= 0 v_main_~i~0_BEFORE_CALL_13) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (not (<= v_main_~i~0_BEFORE_CALL_13 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_11) (+ v_main_~a~0.offset_BEFORE_CALL_11 (* 4 v_main_~i~0_BEFORE_CALL_13))))) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_11) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_13 ~SIZE~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= v_main_~a~0.offset_BEFORE_CALL_11 0) (<= 0 v_main_~i~0_BEFORE_CALL_13) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= v_main_~i~0_BEFORE_CALL_13 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_11) (+ v_main_~a~0.offset_BEFORE_CALL_11 (* 4 v_main_~i~0_BEFORE_CALL_13)))) (<= 0 v_main_~a~0.offset_BEFORE_CALL_11) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:50:30,741 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 189#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= ~MAX~0 |old(~MAX~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~SIZE~0)| ~SIZE~0)) [2019-10-07 00:50:30,741 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertEXIT satisfy 175#(and (exists ((v_main_~a~0.base_BEFORE_CALL_11 Int) (v_main_~a~0.offset_BEFORE_CALL_11 Int) (v_main_~i~0_BEFORE_CALL_13 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_13 ~SIZE~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= v_main_~a~0.offset_BEFORE_CALL_11 0) (<= 0 v_main_~i~0_BEFORE_CALL_13) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (not (<= v_main_~i~0_BEFORE_CALL_13 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_11) (+ v_main_~a~0.offset_BEFORE_CALL_11 (* 4 v_main_~i~0_BEFORE_CALL_13))))) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_11) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_13 ~SIZE~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= v_main_~a~0.offset_BEFORE_CALL_11 0) (<= 0 v_main_~i~0_BEFORE_CALL_13) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= v_main_~i~0_BEFORE_CALL_13 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_11) (+ v_main_~a~0.offset_BEFORE_CALL_11 (* 4 v_main_~i~0_BEFORE_CALL_13)))) (<= 0 v_main_~a~0.offset_BEFORE_CALL_11) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) (not (= 0 __VERIFIER_assert_~cond)) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:50:30,741 INFO L193 IcfgInterpreter]: Reachable states at location L3-3 satisfy 170#(and (exists ((v_main_~a~0.base_BEFORE_CALL_11 Int) (v_main_~a~0.offset_BEFORE_CALL_11 Int) (v_main_~i~0_BEFORE_CALL_13 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_13 ~SIZE~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= v_main_~a~0.offset_BEFORE_CALL_11 0) (<= 0 v_main_~i~0_BEFORE_CALL_13) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (not (<= v_main_~i~0_BEFORE_CALL_13 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_11) (+ v_main_~a~0.offset_BEFORE_CALL_11 (* 4 v_main_~i~0_BEFORE_CALL_13))))) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_11) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_13 ~SIZE~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= v_main_~a~0.offset_BEFORE_CALL_11 0) (<= 0 v_main_~i~0_BEFORE_CALL_13) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= v_main_~i~0_BEFORE_CALL_13 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_11) (+ v_main_~a~0.offset_BEFORE_CALL_11 (* 4 v_main_~i~0_BEFORE_CALL_13)))) (<= 0 v_main_~a~0.offset_BEFORE_CALL_11) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) (not (= 0 __VERIFIER_assert_~cond)) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:50:30,742 INFO L193 IcfgInterpreter]: Reachable states at location L14 satisfy 38#(and (<= ~MAX~0 100000) (= |old(~SIZE~0)| 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 (+ ~SIZE~0 2147483648)) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~SIZE~0)|) (<= ~SIZE~0 2147483647) (= |#valid| |old(#valid)|) (<= |old(~SIZE~0)| 0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (<= 100000 ~MAX~0)) [2019-10-07 00:50:30,742 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 185#(and (exists ((v_main_~a~0.base_BEFORE_CALL_11 Int) (v_main_~a~0.offset_BEFORE_CALL_11 Int) (v_main_~i~0_BEFORE_CALL_13 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_13 ~SIZE~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= v_main_~a~0.offset_BEFORE_CALL_11 0) (<= 0 v_main_~i~0_BEFORE_CALL_13) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (not (<= v_main_~i~0_BEFORE_CALL_13 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_11) (+ v_main_~a~0.offset_BEFORE_CALL_11 (* 4 v_main_~i~0_BEFORE_CALL_13))))) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_11) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_13 ~SIZE~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= v_main_~a~0.offset_BEFORE_CALL_11 0) (<= 0 v_main_~i~0_BEFORE_CALL_13) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= v_main_~i~0_BEFORE_CALL_13 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_11) (+ v_main_~a~0.offset_BEFORE_CALL_11 (* 4 v_main_~i~0_BEFORE_CALL_13)))) (<= 0 v_main_~a~0.offset_BEFORE_CALL_11) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:50:30,742 INFO L193 IcfgInterpreter]: Reachable states at location L28-3 satisfy 138#(and (= |old(~SIZE~0)| 0) (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= |main_#t~malloc2.offset| 0) (<= ~SIZE~0 100000) (<= 0 main_~i~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (<= 0 main_~a~0.offset) (<= 0 |#NULL.base|) (= |main_#t~malloc2.offset| 0) (= ~MAX~0 100000) (<= 0 |main_#t~malloc2.offset|) (<= 0 |old(~SIZE~0)|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= |old(~SIZE~0)| 0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:30,743 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 165#(and (exists ((v_main_~a~0.base_BEFORE_CALL_11 Int) (v_main_~a~0.offset_BEFORE_CALL_11 Int) (v_main_~i~0_BEFORE_CALL_13 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_13 ~SIZE~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= v_main_~a~0.offset_BEFORE_CALL_11 0) (<= 0 v_main_~i~0_BEFORE_CALL_13) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (not (<= v_main_~i~0_BEFORE_CALL_13 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_11) (+ v_main_~a~0.offset_BEFORE_CALL_11 (* 4 v_main_~i~0_BEFORE_CALL_13))))) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_11) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_13 ~SIZE~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= v_main_~a~0.offset_BEFORE_CALL_11 0) (<= 0 v_main_~i~0_BEFORE_CALL_13) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= v_main_~i~0_BEFORE_CALL_13 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_11) (+ v_main_~a~0.offset_BEFORE_CALL_11 (* 4 v_main_~i~0_BEFORE_CALL_13)))) (<= 0 v_main_~a~0.offset_BEFORE_CALL_11) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:50:30,743 INFO L193 IcfgInterpreter]: Reachable states at location L19-3 satisfy 66#(and (or (and (= |old(~SIZE~0)| 0) (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= |main_#t~malloc2.offset| 0) (<= ~SIZE~0 100000) (<= 0 main_~i~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (<= 0 main_~a~0.offset) (<= 0 |#NULL.base|) (= |main_#t~malloc2.offset| 0) (= ~MAX~0 100000) (<= 0 |main_#t~malloc2.offset|) (<= 0 |old(~SIZE~0)|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= |#NULL.offset| 0)) (and (<= ~MAX~0 100000) (= |old(~SIZE~0)| 0) (<= |main_#t~malloc2.offset| 0) (<= 0 main_~i~0) (= 0 |#NULL.base|) (< ~SIZE~0 ~MAX~0) (< 1 ~SIZE~0) (= 0 |main_#t~malloc2.offset|) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (= |#valid| (store |old(#valid)| |main_#t~malloc2.base| 1)) (<= 0 |#NULL.offset|) (= main_~a~0.offset |main_#t~malloc2.offset|) (<= ~SIZE~0 2147483647) (< |#StackHeapBarrier| |main_#t~malloc2.base|) (= (store |old(#length)| |main_#t~malloc2.base| (* 4 ~SIZE~0)) |#length|) (<= ~SIZE~0 100000) (not (= |main_#t~malloc2.base| 0)) (<= |#NULL.base| 0) (<= 0 (+ ~SIZE~0 2147483648)) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (<= 0 main_~a~0.offset) (<= 0 |main_#t~malloc2.offset|) (<= main_~i~0 0) (= 0 (select |old(#valid)| 0)) (<= |#NULL.offset| 0) (<= 0 |old(~SIZE~0)|) (= (select |old(#valid)| |main_#t~malloc2.base|) 0) (= |main_#t~malloc2.base| main_~a~0.base) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= main_~i~0 0))) (<= |old(~SIZE~0)| 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:30,743 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (<= ~MAX~0 100000) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= ~SIZE~0 0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |#valid| 0)) (<= 0 ~SIZE~0) (= |#NULL.offset| 0) (<= ~SIZE~0 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:30,743 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (<= ~MAX~0 100000) (= |old(~SIZE~0)| 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~SIZE~0)|) (= |#valid| |old(#valid)|) (<= |old(~SIZE~0)| 0) (<= 0 ~SIZE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (<= ~SIZE~0 0) (= |old(~SIZE~0)| ~SIZE~0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:30,744 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 194#(and (<= ~MAX~0 100000) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= ~SIZE~0 0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= |#valid| (store |old(#valid)| 0 0)) (<= 0 ~SIZE~0) (= |#NULL.offset| 0) (<= ~SIZE~0 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:30,744 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:50:30,744 INFO L193 IcfgInterpreter]: Reachable states at location L30-1 satisfy 156#(and (= |old(~SIZE~0)| 0) (<= ~MAX~0 100000) (<= |main_#t~malloc2.offset| 0) (<= 0 main_~i~0) (< main_~i~0 ~SIZE~0) (<= 0 |#NULL.base|) (= |main_#t~malloc2.offset| 0) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (= |main_#t~mem5| (select (select |#memory_int| main_~a~0.base) (+ (* 4 main_~i~0) main_~a~0.offset))) (<= 100000 ~MAX~0) (= |#NULL.base| 0) (<= ~SIZE~0 100000) (<= 0 |main_#t~mem5|) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (<= main_~i~0 100000) (<= 0 main_~a~0.offset) (<= 0 |main_#t~malloc2.offset|) (<= 0 |old(~SIZE~0)|) (<= |#NULL.offset| 0) (<= main_~i~0 |main_#t~mem5|) (<= |old(~SIZE~0)| 0) (= |#NULL.offset| 0)) [2019-10-07 00:50:30,744 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 160#(exists ((v_main_~a~0.base_BEFORE_CALL_11 Int) (v_main_~a~0.offset_BEFORE_CALL_11 Int) (v_main_~i~0_BEFORE_CALL_13 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_13 ~SIZE~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= v_main_~a~0.offset_BEFORE_CALL_11 0) (<= 0 v_main_~i~0_BEFORE_CALL_13) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (not (<= v_main_~i~0_BEFORE_CALL_13 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_11) (+ v_main_~a~0.offset_BEFORE_CALL_11 (* 4 v_main_~i~0_BEFORE_CALL_13))))) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_11) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_13 ~SIZE~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= v_main_~a~0.offset_BEFORE_CALL_11 0) (<= 0 v_main_~i~0_BEFORE_CALL_13) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= v_main_~i~0_BEFORE_CALL_13 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_11) (+ v_main_~a~0.offset_BEFORE_CALL_11 (* 4 v_main_~i~0_BEFORE_CALL_13)))) (<= 0 v_main_~a~0.offset_BEFORE_CALL_11) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) [2019-10-07 00:50:30,745 INFO L193 IcfgInterpreter]: Reachable states at location L30 satisfy 143#(and (= |old(~SIZE~0)| 0) (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= |main_#t~malloc2.offset| 0) (<= ~SIZE~0 100000) (<= 0 main_~i~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (<= main_~i~0 100000) (< main_~i~0 ~SIZE~0) (<= 0 main_~a~0.offset) (<= 0 |#NULL.base|) (= |main_#t~malloc2.offset| 0) (= ~MAX~0 100000) (<= 0 |main_#t~malloc2.offset|) (<= 0 |old(~SIZE~0)|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= |main_#t~mem5| (select (select |#memory_int| main_~a~0.base) (+ (* 4 main_~i~0) main_~a~0.offset))) (<= |old(~SIZE~0)| 0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:31,344 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 25 [2019-10-07 00:50:31,884 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:50:31,884 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13, 10, 12] total 35 [2019-10-07 00:50:31,886 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-10-07 00:50:31,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-10-07 00:50:31,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1071, Unknown=0, NotChecked=0, Total=1190 [2019-10-07 00:50:31,887 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 35 states. [2019-10-07 00:50:35,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:50:35,796 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2019-10-07 00:50:35,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-07 00:50:35,797 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 21 [2019-10-07 00:50:35,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:50:35,800 INFO L225 Difference]: With dead ends: 60 [2019-10-07 00:50:35,800 INFO L226 Difference]: Without dead ends: 58 [2019-10-07 00:50:35,803 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 36 SyntacticMatches, 5 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1343 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=539, Invalid=4291, Unknown=0, NotChecked=0, Total=4830 [2019-10-07 00:50:35,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-10-07 00:50:35,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 39. [2019-10-07 00:50:35,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-10-07 00:50:35,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2019-10-07 00:50:35,818 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 21 [2019-10-07 00:50:35,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:50:35,819 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2019-10-07 00:50:35,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-10-07 00:50:35,819 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2019-10-07 00:50:35,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-07 00:50:35,821 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:50:35,821 INFO L385 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:50:36,024 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:50:36,025 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:50:36,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:50:36,026 INFO L82 PathProgramCache]: Analyzing trace with hash -501066660, now seen corresponding path program 2 times [2019-10-07 00:50:36,026 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:50:36,026 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:50:36,027 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:50:36,027 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:50:36,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:50:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:50:36,199 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:50:36,200 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:50:36,200 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:50:36,200 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:50:36,267 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-10-07 00:50:36,267 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-07 00:50:36,269 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 38 conjunts are in the unsatisfiable core [2019-10-07 00:50:36,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:50:36,516 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:50:36,636 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2019-10-07 00:50:37,086 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:50:37,086 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:50:37,653 WARN L191 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 14 [2019-10-07 00:50:37,780 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:50:37,780 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:50:37,784 INFO L162 IcfgInterpreter]: Started Sifa with 16 locations of interest [2019-10-07 00:50:37,784 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:50:37,787 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:50:37,788 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:50:37,788 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:50:37,834 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2019-10-07 00:50:38,451 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 40 for LOIs [2019-10-07 00:50:38,487 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 16 for LOIs [2019-10-07 00:50:38,494 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:50:38,494 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:50:38,495 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 180#(and (<= __VERIFIER_assert_~cond 0) (exists ((v_main_~a~0.base_BEFORE_CALL_22 Int) (v_main_~a~0.offset_BEFORE_CALL_22 Int) (v_main_~i~0_BEFORE_CALL_25 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (<= 0 v_main_~i~0_BEFORE_CALL_25) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_22 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_22) (< v_main_~i~0_BEFORE_CALL_25 ~SIZE~0) (= |#NULL.offset| 0) (not (<= v_main_~i~0_BEFORE_CALL_25 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_22) (+ v_main_~a~0.offset_BEFORE_CALL_22 (* 4 v_main_~i~0_BEFORE_CALL_25))))) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (<= 0 v_main_~i~0_BEFORE_CALL_25) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_22 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_22) (<= v_main_~i~0_BEFORE_CALL_25 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_22) (+ v_main_~a~0.offset_BEFORE_CALL_22 (* 4 v_main_~i~0_BEFORE_CALL_25)))) (< v_main_~i~0_BEFORE_CALL_25 ~SIZE~0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:50:38,495 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 189#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= ~MAX~0 |old(~MAX~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~SIZE~0)| ~SIZE~0)) [2019-10-07 00:50:38,495 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertEXIT satisfy 175#(and (not (= 0 __VERIFIER_assert_~cond)) (exists ((v_main_~a~0.base_BEFORE_CALL_22 Int) (v_main_~a~0.offset_BEFORE_CALL_22 Int) (v_main_~i~0_BEFORE_CALL_25 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (<= 0 v_main_~i~0_BEFORE_CALL_25) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_22 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_22) (< v_main_~i~0_BEFORE_CALL_25 ~SIZE~0) (= |#NULL.offset| 0) (not (<= v_main_~i~0_BEFORE_CALL_25 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_22) (+ v_main_~a~0.offset_BEFORE_CALL_22 (* 4 v_main_~i~0_BEFORE_CALL_25))))) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (<= 0 v_main_~i~0_BEFORE_CALL_25) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_22 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_22) (<= v_main_~i~0_BEFORE_CALL_25 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_22) (+ v_main_~a~0.offset_BEFORE_CALL_22 (* 4 v_main_~i~0_BEFORE_CALL_25)))) (< v_main_~i~0_BEFORE_CALL_25 ~SIZE~0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:50:38,496 INFO L193 IcfgInterpreter]: Reachable states at location L3-3 satisfy 170#(and (not (= 0 __VERIFIER_assert_~cond)) (exists ((v_main_~a~0.base_BEFORE_CALL_22 Int) (v_main_~a~0.offset_BEFORE_CALL_22 Int) (v_main_~i~0_BEFORE_CALL_25 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (<= 0 v_main_~i~0_BEFORE_CALL_25) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_22 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_22) (< v_main_~i~0_BEFORE_CALL_25 ~SIZE~0) (= |#NULL.offset| 0) (not (<= v_main_~i~0_BEFORE_CALL_25 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_22) (+ v_main_~a~0.offset_BEFORE_CALL_22 (* 4 v_main_~i~0_BEFORE_CALL_25))))) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (<= 0 v_main_~i~0_BEFORE_CALL_25) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_22 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_22) (<= v_main_~i~0_BEFORE_CALL_25 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_22) (+ v_main_~a~0.offset_BEFORE_CALL_22 (* 4 v_main_~i~0_BEFORE_CALL_25)))) (< v_main_~i~0_BEFORE_CALL_25 ~SIZE~0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:50:38,496 INFO L193 IcfgInterpreter]: Reachable states at location L14 satisfy 38#(and (<= ~MAX~0 100000) (= |old(~SIZE~0)| 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 (+ ~SIZE~0 2147483648)) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~SIZE~0)|) (= 0 (select |old(#valid)| 0)) (<= ~SIZE~0 2147483647) (= |#valid| |old(#valid)|) (<= |old(~SIZE~0)| 0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (<= 100000 ~MAX~0)) [2019-10-07 00:50:38,496 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 185#(and (<= __VERIFIER_assert_~cond 0) (exists ((v_main_~a~0.base_BEFORE_CALL_22 Int) (v_main_~a~0.offset_BEFORE_CALL_22 Int) (v_main_~i~0_BEFORE_CALL_25 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (<= 0 v_main_~i~0_BEFORE_CALL_25) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_22 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_22) (< v_main_~i~0_BEFORE_CALL_25 ~SIZE~0) (= |#NULL.offset| 0) (not (<= v_main_~i~0_BEFORE_CALL_25 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_22) (+ v_main_~a~0.offset_BEFORE_CALL_22 (* 4 v_main_~i~0_BEFORE_CALL_25))))) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (<= 0 v_main_~i~0_BEFORE_CALL_25) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_22 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_22) (<= v_main_~i~0_BEFORE_CALL_25 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_22) (+ v_main_~a~0.offset_BEFORE_CALL_22 (* 4 v_main_~i~0_BEFORE_CALL_25)))) (< v_main_~i~0_BEFORE_CALL_25 ~SIZE~0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:50:38,497 INFO L193 IcfgInterpreter]: Reachable states at location L28-3 satisfy 138#(and (= |old(~SIZE~0)| 0) (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= |main_#t~malloc2.offset| 0) (<= ~SIZE~0 100000) (<= 0 main_~i~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (<= 0 main_~a~0.offset) (<= 0 |#NULL.base|) (= |main_#t~malloc2.offset| 0) (= ~MAX~0 100000) (<= 0 |main_#t~malloc2.offset|) (<= 0 |old(~SIZE~0)|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= |old(~SIZE~0)| 0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:38,497 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 165#(and (exists ((v_main_~a~0.base_BEFORE_CALL_22 Int) (v_main_~a~0.offset_BEFORE_CALL_22 Int) (v_main_~i~0_BEFORE_CALL_25 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (<= 0 v_main_~i~0_BEFORE_CALL_25) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_22 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_22) (< v_main_~i~0_BEFORE_CALL_25 ~SIZE~0) (= |#NULL.offset| 0) (not (<= v_main_~i~0_BEFORE_CALL_25 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_22) (+ v_main_~a~0.offset_BEFORE_CALL_22 (* 4 v_main_~i~0_BEFORE_CALL_25))))) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (<= 0 v_main_~i~0_BEFORE_CALL_25) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_22 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_22) (<= v_main_~i~0_BEFORE_CALL_25 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_22) (+ v_main_~a~0.offset_BEFORE_CALL_22 (* 4 v_main_~i~0_BEFORE_CALL_25)))) (< v_main_~i~0_BEFORE_CALL_25 ~SIZE~0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:50:38,497 INFO L193 IcfgInterpreter]: Reachable states at location L19-3 satisfy 66#(and (or (and (= |old(~SIZE~0)| 0) (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= |main_#t~malloc2.offset| 0) (<= ~SIZE~0 100000) (<= 0 main_~i~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (<= 0 main_~a~0.offset) (= |main_#t~malloc2.offset| 0) (= ~MAX~0 100000) (= |#NULL.offset| 0)) (and (<= ~MAX~0 100000) (= |old(~SIZE~0)| 0) (<= |main_#t~malloc2.offset| 0) (<= 0 main_~i~0) (= 0 |#NULL.base|) (< ~SIZE~0 ~MAX~0) (< 1 ~SIZE~0) (= 0 |main_#t~malloc2.offset|) (= ~MAX~0 100000) (= |#valid| (store |old(#valid)| |main_#t~malloc2.base| 1)) (= main_~a~0.offset |main_#t~malloc2.offset|) (<= ~SIZE~0 2147483647) (< |#StackHeapBarrier| |main_#t~malloc2.base|) (= (store |old(#length)| |main_#t~malloc2.base| (* 4 ~SIZE~0)) |#length|) (<= ~SIZE~0 100000) (not (= |main_#t~malloc2.base| 0)) (<= |#NULL.base| 0) (<= 0 (+ ~SIZE~0 2147483648)) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (<= 0 main_~a~0.offset) (<= main_~i~0 0) (= 0 (select |old(#valid)| 0)) (= (select |old(#valid)| |main_#t~malloc2.base|) 0) (= |main_#t~malloc2.base| main_~a~0.base) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= main_~i~0 0))) (<= 0 |#NULL.base|) (<= 0 |main_#t~malloc2.offset|) (<= 0 |old(~SIZE~0)|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= |old(~SIZE~0)| 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:38,497 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (<= ~MAX~0 100000) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= ~SIZE~0 0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |#valid| 0)) (<= 0 ~SIZE~0) (= |#NULL.offset| 0) (<= ~SIZE~0 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:38,498 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (<= ~MAX~0 100000) (= |old(~SIZE~0)| 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~SIZE~0)|) (= 0 (select |old(#valid)| 0)) (= |#valid| |old(#valid)|) (<= |old(~SIZE~0)| 0) (<= 0 ~SIZE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (<= ~SIZE~0 0) (= |old(~SIZE~0)| ~SIZE~0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:38,500 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 194#(and (<= ~MAX~0 100000) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= ~SIZE~0 0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= |#valid| (store |old(#valid)| 0 0)) (<= 0 ~SIZE~0) (= |#NULL.offset| 0) (<= ~SIZE~0 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:38,500 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:50:38,501 INFO L193 IcfgInterpreter]: Reachable states at location L30-1 satisfy 156#(and (= |old(~SIZE~0)| 0) (<= ~MAX~0 100000) (<= |main_#t~malloc2.offset| 0) (<= 0 main_~i~0) (< main_~i~0 ~SIZE~0) (<= 0 |#NULL.base|) (= |main_#t~malloc2.offset| 0) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (= |main_#t~mem5| (select (select |#memory_int| main_~a~0.base) (+ (* 4 main_~i~0) main_~a~0.offset))) (<= 100000 ~MAX~0) (= |#NULL.base| 0) (<= ~SIZE~0 100000) (<= 0 |main_#t~mem5|) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (<= main_~i~0 100000) (<= 0 main_~a~0.offset) (<= 0 |main_#t~malloc2.offset|) (<= 0 |old(~SIZE~0)|) (<= |#NULL.offset| 0) (<= main_~i~0 |main_#t~mem5|) (<= |old(~SIZE~0)| 0) (= |#NULL.offset| 0)) [2019-10-07 00:50:38,501 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 160#(exists ((v_main_~a~0.base_BEFORE_CALL_22 Int) (v_main_~a~0.offset_BEFORE_CALL_22 Int) (v_main_~i~0_BEFORE_CALL_25 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (<= 0 v_main_~i~0_BEFORE_CALL_25) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_22 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_22) (< v_main_~i~0_BEFORE_CALL_25 ~SIZE~0) (= |#NULL.offset| 0) (not (<= v_main_~i~0_BEFORE_CALL_25 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_22) (+ v_main_~a~0.offset_BEFORE_CALL_22 (* 4 v_main_~i~0_BEFORE_CALL_25))))) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (<= 0 v_main_~i~0_BEFORE_CALL_25) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_22 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_22) (<= v_main_~i~0_BEFORE_CALL_25 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_22) (+ v_main_~a~0.offset_BEFORE_CALL_22 (* 4 v_main_~i~0_BEFORE_CALL_25)))) (< v_main_~i~0_BEFORE_CALL_25 ~SIZE~0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) [2019-10-07 00:50:38,501 INFO L193 IcfgInterpreter]: Reachable states at location L30 satisfy 143#(and (= |old(~SIZE~0)| 0) (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= |main_#t~malloc2.offset| 0) (<= ~SIZE~0 100000) (<= 0 main_~i~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (<= main_~i~0 100000) (< main_~i~0 ~SIZE~0) (<= 0 main_~a~0.offset) (<= 0 |#NULL.base|) (= |main_#t~malloc2.offset| 0) (= ~MAX~0 100000) (<= 0 |main_#t~malloc2.offset|) (<= 0 |old(~SIZE~0)|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= |main_#t~mem5| (select (select |#memory_int| main_~a~0.base) (+ (* 4 main_~i~0) main_~a~0.offset))) (<= |old(~SIZE~0)| 0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:39,752 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:50:39,752 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 12, 12] total 42 [2019-10-07 00:50:39,753 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2019-10-07 00:50:39,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2019-10-07 00:50:39,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=1549, Unknown=0, NotChecked=0, Total=1722 [2019-10-07 00:50:39,754 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 42 states. [2019-10-07 00:50:40,413 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2019-10-07 00:50:40,686 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2019-10-07 00:50:41,089 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-10-07 00:50:41,366 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-10-07 00:50:44,361 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-10-07 00:50:44,642 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-10-07 00:50:44,889 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2019-10-07 00:50:45,533 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2019-10-07 00:50:45,748 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2019-10-07 00:50:46,272 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2019-10-07 00:50:46,451 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2019-10-07 00:50:46,684 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2019-10-07 00:50:46,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:50:46,989 INFO L93 Difference]: Finished difference Result 74 states and 85 transitions. [2019-10-07 00:50:46,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-10-07 00:50:46,990 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 23 [2019-10-07 00:50:46,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:50:46,994 INFO L225 Difference]: With dead ends: 74 [2019-10-07 00:50:46,994 INFO L226 Difference]: Without dead ends: 72 [2019-10-07 00:50:46,996 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 38 SyntacticMatches, 5 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1568 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=628, Invalid=5071, Unknown=1, NotChecked=0, Total=5700 [2019-10-07 00:50:46,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-10-07 00:50:47,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 56. [2019-10-07 00:50:47,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-10-07 00:50:47,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 65 transitions. [2019-10-07 00:50:47,017 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 65 transitions. Word has length 23 [2019-10-07 00:50:47,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:50:47,017 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 65 transitions. [2019-10-07 00:50:47,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 42 states. [2019-10-07 00:50:47,018 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2019-10-07 00:50:47,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-07 00:50:47,019 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:50:47,019 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:50:47,231 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:50:47,232 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:50:47,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:50:47,233 INFO L82 PathProgramCache]: Analyzing trace with hash -145594472, now seen corresponding path program 3 times [2019-10-07 00:50:47,233 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:50:47,233 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:50:47,234 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:50:47,234 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:50:47,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:50:47,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:50:47,302 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-07 00:50:47,302 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:50:47,303 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:50:47,303 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:50:47,376 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-07 00:50:47,376 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-07 00:50:47,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-07 00:50:47,379 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:50:47,427 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-07 00:50:47,428 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:50:47,468 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-07 00:50:47,468 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:50:47,470 INFO L162 IcfgInterpreter]: Started Sifa with 16 locations of interest [2019-10-07 00:50:47,470 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:50:47,470 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:50:47,470 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:50:47,470 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:50:47,500 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 30 for LOIs [2019-10-07 00:50:47,849 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 40 for LOIs [2019-10-07 00:50:47,859 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 16 for LOIs [2019-10-07 00:50:47,862 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:50:47,863 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:50:47,863 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 180#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (exists ((v_main_~a~0.base_BEFORE_CALL_31 Int) (v_main_~a~0.offset_BEFORE_CALL_31 Int) (v_main_~i~0_BEFORE_CALL_38 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= 0 v_main_~i~0_BEFORE_CALL_38) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_31) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= v_main_~a~0.offset_BEFORE_CALL_31 0) (< v_main_~i~0_BEFORE_CALL_38 ~SIZE~0) (not (<= v_main_~i~0_BEFORE_CALL_38 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_31) (+ v_main_~a~0.offset_BEFORE_CALL_31 (* 4 v_main_~i~0_BEFORE_CALL_38))))) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= 0 v_main_~i~0_BEFORE_CALL_38) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (<= 0 v_main_~a~0.offset_BEFORE_CALL_31) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= v_main_~a~0.offset_BEFORE_CALL_31 0) (< v_main_~i~0_BEFORE_CALL_38 ~SIZE~0) (<= v_main_~i~0_BEFORE_CALL_38 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_31) (+ v_main_~a~0.offset_BEFORE_CALL_31 (* 4 v_main_~i~0_BEFORE_CALL_38)))) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:50:47,863 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 189#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= ~MAX~0 |old(~MAX~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~SIZE~0)| ~SIZE~0)) [2019-10-07 00:50:47,863 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertEXIT satisfy 175#(and (not (= 0 __VERIFIER_assert_~cond)) (exists ((v_main_~a~0.base_BEFORE_CALL_31 Int) (v_main_~a~0.offset_BEFORE_CALL_31 Int) (v_main_~i~0_BEFORE_CALL_38 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= 0 v_main_~i~0_BEFORE_CALL_38) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_31) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= v_main_~a~0.offset_BEFORE_CALL_31 0) (< v_main_~i~0_BEFORE_CALL_38 ~SIZE~0) (not (<= v_main_~i~0_BEFORE_CALL_38 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_31) (+ v_main_~a~0.offset_BEFORE_CALL_31 (* 4 v_main_~i~0_BEFORE_CALL_38))))) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= 0 v_main_~i~0_BEFORE_CALL_38) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (<= 0 v_main_~a~0.offset_BEFORE_CALL_31) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= v_main_~a~0.offset_BEFORE_CALL_31 0) (< v_main_~i~0_BEFORE_CALL_38 ~SIZE~0) (<= v_main_~i~0_BEFORE_CALL_38 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_31) (+ v_main_~a~0.offset_BEFORE_CALL_31 (* 4 v_main_~i~0_BEFORE_CALL_38)))) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:50:47,864 INFO L193 IcfgInterpreter]: Reachable states at location L3-3 satisfy 170#(and (not (= 0 __VERIFIER_assert_~cond)) (exists ((v_main_~a~0.base_BEFORE_CALL_31 Int) (v_main_~a~0.offset_BEFORE_CALL_31 Int) (v_main_~i~0_BEFORE_CALL_38 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= 0 v_main_~i~0_BEFORE_CALL_38) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_31) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= v_main_~a~0.offset_BEFORE_CALL_31 0) (< v_main_~i~0_BEFORE_CALL_38 ~SIZE~0) (not (<= v_main_~i~0_BEFORE_CALL_38 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_31) (+ v_main_~a~0.offset_BEFORE_CALL_31 (* 4 v_main_~i~0_BEFORE_CALL_38))))) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= 0 v_main_~i~0_BEFORE_CALL_38) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (<= 0 v_main_~a~0.offset_BEFORE_CALL_31) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= v_main_~a~0.offset_BEFORE_CALL_31 0) (< v_main_~i~0_BEFORE_CALL_38 ~SIZE~0) (<= v_main_~i~0_BEFORE_CALL_38 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_31) (+ v_main_~a~0.offset_BEFORE_CALL_31 (* 4 v_main_~i~0_BEFORE_CALL_38)))) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:50:47,864 INFO L193 IcfgInterpreter]: Reachable states at location L14 satisfy 38#(and (<= ~MAX~0 100000) (= |old(~SIZE~0)| 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 (+ ~SIZE~0 2147483648)) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (<= 0 |old(~SIZE~0)|) (<= ~SIZE~0 2147483647) (= |#valid| |old(#valid)|) (<= |old(~SIZE~0)| 0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (<= 100000 ~MAX~0)) [2019-10-07 00:50:47,864 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 185#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (exists ((v_main_~a~0.base_BEFORE_CALL_31 Int) (v_main_~a~0.offset_BEFORE_CALL_31 Int) (v_main_~i~0_BEFORE_CALL_38 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= 0 v_main_~i~0_BEFORE_CALL_38) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_31) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= v_main_~a~0.offset_BEFORE_CALL_31 0) (< v_main_~i~0_BEFORE_CALL_38 ~SIZE~0) (not (<= v_main_~i~0_BEFORE_CALL_38 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_31) (+ v_main_~a~0.offset_BEFORE_CALL_31 (* 4 v_main_~i~0_BEFORE_CALL_38))))) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= 0 v_main_~i~0_BEFORE_CALL_38) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (<= 0 v_main_~a~0.offset_BEFORE_CALL_31) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= v_main_~a~0.offset_BEFORE_CALL_31 0) (< v_main_~i~0_BEFORE_CALL_38 ~SIZE~0) (<= v_main_~i~0_BEFORE_CALL_38 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_31) (+ v_main_~a~0.offset_BEFORE_CALL_31 (* 4 v_main_~i~0_BEFORE_CALL_38)))) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:50:47,864 INFO L193 IcfgInterpreter]: Reachable states at location L28-3 satisfy 138#(and (= |old(~SIZE~0)| 0) (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= |main_#t~malloc2.offset| 0) (<= ~SIZE~0 100000) (<= 0 main_~i~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (<= 0 main_~a~0.offset) (<= 0 |#NULL.base|) (= |main_#t~malloc2.offset| 0) (= ~MAX~0 100000) (<= 0 |main_#t~malloc2.offset|) (<= 0 |old(~SIZE~0)|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= |old(~SIZE~0)| 0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:47,865 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 165#(and (exists ((v_main_~a~0.base_BEFORE_CALL_31 Int) (v_main_~a~0.offset_BEFORE_CALL_31 Int) (v_main_~i~0_BEFORE_CALL_38 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= 0 v_main_~i~0_BEFORE_CALL_38) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_31) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= v_main_~a~0.offset_BEFORE_CALL_31 0) (< v_main_~i~0_BEFORE_CALL_38 ~SIZE~0) (not (<= v_main_~i~0_BEFORE_CALL_38 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_31) (+ v_main_~a~0.offset_BEFORE_CALL_31 (* 4 v_main_~i~0_BEFORE_CALL_38))))) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= 0 v_main_~i~0_BEFORE_CALL_38) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (<= 0 v_main_~a~0.offset_BEFORE_CALL_31) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= v_main_~a~0.offset_BEFORE_CALL_31 0) (< v_main_~i~0_BEFORE_CALL_38 ~SIZE~0) (<= v_main_~i~0_BEFORE_CALL_38 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_31) (+ v_main_~a~0.offset_BEFORE_CALL_31 (* 4 v_main_~i~0_BEFORE_CALL_38)))) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:50:47,865 INFO L193 IcfgInterpreter]: Reachable states at location L19-3 satisfy 66#(and (or (and (= |old(~SIZE~0)| 0) (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= |main_#t~malloc2.offset| 0) (<= ~SIZE~0 100000) (= |main_#t~malloc2.offset| 0) (= ~MAX~0 100000) (= |#NULL.offset| 0)) (and (<= ~MAX~0 100000) (= |old(~SIZE~0)| 0) (<= |main_#t~malloc2.offset| 0) (= 0 |#NULL.base|) (< ~SIZE~0 ~MAX~0) (< 1 ~SIZE~0) (= 0 |main_#t~malloc2.offset|) (= ~MAX~0 100000) (= |#valid| (store |old(#valid)| |main_#t~malloc2.base| 1)) (= main_~a~0.offset |main_#t~malloc2.offset|) (<= ~SIZE~0 2147483647) (< |#StackHeapBarrier| |main_#t~malloc2.base|) (= (store |old(#length)| |main_#t~malloc2.base| (* 4 ~SIZE~0)) |#length|) (<= ~SIZE~0 100000) (not (= |main_#t~malloc2.base| 0)) (<= 0 (+ ~SIZE~0 2147483648)) (<= main_~i~0 0) (= 0 (select |old(#valid)| 0)) (= (select |old(#valid)| |main_#t~malloc2.base|) 0) (= |main_#t~malloc2.base| main_~a~0.base) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= main_~i~0 0))) (<= 0 main_~i~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (<= 0 main_~a~0.offset) (<= 0 |#NULL.base|) (<= 0 |main_#t~malloc2.offset|) (<= 0 |old(~SIZE~0)|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= |old(~SIZE~0)| 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:47,865 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (<= ~MAX~0 100000) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= ~SIZE~0 0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |#valid| 0)) (<= 0 ~SIZE~0) (= |#NULL.offset| 0) (<= ~SIZE~0 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:47,865 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (<= ~MAX~0 100000) (= |old(~SIZE~0)| 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (<= 0 |old(~SIZE~0)|) (= |#valid| |old(#valid)|) (<= |old(~SIZE~0)| 0) (<= 0 ~SIZE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (<= ~SIZE~0 0) (= |old(~SIZE~0)| ~SIZE~0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:47,866 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 194#(and (<= ~MAX~0 100000) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= ~SIZE~0 0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= |#valid| (store |old(#valid)| 0 0)) (<= 0 ~SIZE~0) (= |#NULL.offset| 0) (<= ~SIZE~0 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:47,866 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:50:47,866 INFO L193 IcfgInterpreter]: Reachable states at location L30-1 satisfy 156#(and (= |old(~SIZE~0)| 0) (<= ~MAX~0 100000) (<= |main_#t~malloc2.offset| 0) (<= 0 main_~i~0) (< main_~i~0 ~SIZE~0) (<= 0 |#NULL.base|) (= |main_#t~malloc2.offset| 0) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (= |main_#t~mem5| (select (select |#memory_int| main_~a~0.base) (+ (* 4 main_~i~0) main_~a~0.offset))) (<= 100000 ~MAX~0) (= |#NULL.base| 0) (<= ~SIZE~0 100000) (<= 0 |main_#t~mem5|) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (<= main_~i~0 100000) (<= 0 main_~a~0.offset) (<= 0 |main_#t~malloc2.offset|) (<= 0 |old(~SIZE~0)|) (<= |#NULL.offset| 0) (<= main_~i~0 |main_#t~mem5|) (<= |old(~SIZE~0)| 0) (= |#NULL.offset| 0)) [2019-10-07 00:50:47,866 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 160#(exists ((v_main_~a~0.base_BEFORE_CALL_31 Int) (v_main_~a~0.offset_BEFORE_CALL_31 Int) (v_main_~i~0_BEFORE_CALL_38 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= 0 v_main_~i~0_BEFORE_CALL_38) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_31) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= v_main_~a~0.offset_BEFORE_CALL_31 0) (< v_main_~i~0_BEFORE_CALL_38 ~SIZE~0) (not (<= v_main_~i~0_BEFORE_CALL_38 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_31) (+ v_main_~a~0.offset_BEFORE_CALL_31 (* 4 v_main_~i~0_BEFORE_CALL_38))))) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= 0 v_main_~i~0_BEFORE_CALL_38) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (<= 0 v_main_~a~0.offset_BEFORE_CALL_31) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= v_main_~a~0.offset_BEFORE_CALL_31 0) (< v_main_~i~0_BEFORE_CALL_38 ~SIZE~0) (<= v_main_~i~0_BEFORE_CALL_38 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_31) (+ v_main_~a~0.offset_BEFORE_CALL_31 (* 4 v_main_~i~0_BEFORE_CALL_38)))) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) [2019-10-07 00:50:47,866 INFO L193 IcfgInterpreter]: Reachable states at location L30 satisfy 143#(and (= |old(~SIZE~0)| 0) (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= |main_#t~malloc2.offset| 0) (<= ~SIZE~0 100000) (<= 0 main_~i~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (<= main_~i~0 100000) (< main_~i~0 ~SIZE~0) (<= 0 main_~a~0.offset) (<= 0 |#NULL.base|) (= |main_#t~malloc2.offset| 0) (= ~MAX~0 100000) (<= 0 |main_#t~malloc2.offset|) (<= 0 |old(~SIZE~0)|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= |main_#t~mem5| (select (select |#memory_int| main_~a~0.base) (+ (* 4 main_~i~0) main_~a~0.offset))) (<= |old(~SIZE~0)| 0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:48,719 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:50:48,719 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 8, 12] total 26 [2019-10-07 00:50:48,720 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-07 00:50:48,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-07 00:50:48,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2019-10-07 00:50:48,721 INFO L87 Difference]: Start difference. First operand 56 states and 65 transitions. Second operand 26 states. [2019-10-07 00:50:50,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:50:50,392 INFO L93 Difference]: Finished difference Result 84 states and 94 transitions. [2019-10-07 00:50:50,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-07 00:50:50,393 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 28 [2019-10-07 00:50:50,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:50:50,394 INFO L225 Difference]: With dead ends: 84 [2019-10-07 00:50:50,394 INFO L226 Difference]: Without dead ends: 60 [2019-10-07 00:50:50,395 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 60 SyntacticMatches, 7 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 765 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=354, Invalid=2096, Unknown=0, NotChecked=0, Total=2450 [2019-10-07 00:50:50,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-10-07 00:50:50,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2019-10-07 00:50:50,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-10-07 00:50:50,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2019-10-07 00:50:50,413 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 64 transitions. Word has length 28 [2019-10-07 00:50:50,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:50:50,413 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 64 transitions. [2019-10-07 00:50:50,413 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-07 00:50:50,414 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 64 transitions. [2019-10-07 00:50:50,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-07 00:50:50,415 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:50:50,415 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:50:50,619 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:50:50,620 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:50:50,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:50:50,620 INFO L82 PathProgramCache]: Analyzing trace with hash 138379466, now seen corresponding path program 4 times [2019-10-07 00:50:50,620 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:50:50,621 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:50:50,621 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:50:50,621 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:50:50,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:50:50,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:50:50,797 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-07 00:50:50,797 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:50:50,797 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:50:50,797 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:50:50,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:50:50,886 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 25 conjunts are in the unsatisfiable core [2019-10-07 00:50:50,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:50:51,228 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 00:50:51,228 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:50:51,317 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-07 00:50:51,318 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:50:51,319 INFO L162 IcfgInterpreter]: Started Sifa with 16 locations of interest [2019-10-07 00:50:51,319 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:50:51,320 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:50:51,320 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:50:51,320 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:50:51,345 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2019-10-07 00:50:51,696 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 40 for LOIs [2019-10-07 00:50:51,706 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 16 for LOIs [2019-10-07 00:50:51,710 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:50:51,710 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:50:51,710 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 191#(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_44 Int) (v_main_~i~0_BEFORE_CALL_52 Int) (v_main_~a~0.offset_BEFORE_CALL_44 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_52 ~SIZE~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_44) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (not (<= v_main_~i~0_BEFORE_CALL_52 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_44) (+ (* 4 v_main_~i~0_BEFORE_CALL_52) v_main_~a~0.offset_BEFORE_CALL_44)))) (<= v_main_~a~0.offset_BEFORE_CALL_44 0) (<= 0 v_main_~i~0_BEFORE_CALL_52) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_52 ~SIZE~0) (<= v_main_~i~0_BEFORE_CALL_52 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_44) (+ (* 4 v_main_~i~0_BEFORE_CALL_52) v_main_~a~0.offset_BEFORE_CALL_44))) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_44) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= v_main_~a~0.offset_BEFORE_CALL_44 0) (<= 0 v_main_~i~0_BEFORE_CALL_52) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:50:51,710 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 200#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= ~MAX~0 |old(~MAX~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~SIZE~0)| ~SIZE~0)) [2019-10-07 00:50:51,711 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertEXIT satisfy 186#(and (not (= 0 __VERIFIER_assert_~cond)) (exists ((v_main_~a~0.base_BEFORE_CALL_44 Int) (v_main_~i~0_BEFORE_CALL_52 Int) (v_main_~a~0.offset_BEFORE_CALL_44 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_52 ~SIZE~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_44) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (not (<= v_main_~i~0_BEFORE_CALL_52 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_44) (+ (* 4 v_main_~i~0_BEFORE_CALL_52) v_main_~a~0.offset_BEFORE_CALL_44)))) (<= v_main_~a~0.offset_BEFORE_CALL_44 0) (<= 0 v_main_~i~0_BEFORE_CALL_52) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_52 ~SIZE~0) (<= v_main_~i~0_BEFORE_CALL_52 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_44) (+ (* 4 v_main_~i~0_BEFORE_CALL_52) v_main_~a~0.offset_BEFORE_CALL_44))) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_44) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= v_main_~a~0.offset_BEFORE_CALL_44 0) (<= 0 v_main_~i~0_BEFORE_CALL_52) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:50:51,711 INFO L193 IcfgInterpreter]: Reachable states at location L3-3 satisfy 181#(and (not (= 0 __VERIFIER_assert_~cond)) (exists ((v_main_~a~0.base_BEFORE_CALL_44 Int) (v_main_~i~0_BEFORE_CALL_52 Int) (v_main_~a~0.offset_BEFORE_CALL_44 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_52 ~SIZE~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_44) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (not (<= v_main_~i~0_BEFORE_CALL_52 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_44) (+ (* 4 v_main_~i~0_BEFORE_CALL_52) v_main_~a~0.offset_BEFORE_CALL_44)))) (<= v_main_~a~0.offset_BEFORE_CALL_44 0) (<= 0 v_main_~i~0_BEFORE_CALL_52) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_52 ~SIZE~0) (<= v_main_~i~0_BEFORE_CALL_52 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_44) (+ (* 4 v_main_~i~0_BEFORE_CALL_52) v_main_~a~0.offset_BEFORE_CALL_44))) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_44) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= v_main_~a~0.offset_BEFORE_CALL_44 0) (<= 0 v_main_~i~0_BEFORE_CALL_52) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:50:51,711 INFO L193 IcfgInterpreter]: Reachable states at location L14 satisfy 38#(and (<= ~MAX~0 100000) (= |old(~SIZE~0)| 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 (+ ~SIZE~0 2147483648)) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (<= 0 |old(~SIZE~0)|) (<= ~SIZE~0 2147483647) (= |#valid| |old(#valid)|) (<= |old(~SIZE~0)| 0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (<= 100000 ~MAX~0)) [2019-10-07 00:50:51,711 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 196#(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_44 Int) (v_main_~i~0_BEFORE_CALL_52 Int) (v_main_~a~0.offset_BEFORE_CALL_44 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_52 ~SIZE~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_44) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (not (<= v_main_~i~0_BEFORE_CALL_52 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_44) (+ (* 4 v_main_~i~0_BEFORE_CALL_52) v_main_~a~0.offset_BEFORE_CALL_44)))) (<= v_main_~a~0.offset_BEFORE_CALL_44 0) (<= 0 v_main_~i~0_BEFORE_CALL_52) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_52 ~SIZE~0) (<= v_main_~i~0_BEFORE_CALL_52 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_44) (+ (* 4 v_main_~i~0_BEFORE_CALL_52) v_main_~a~0.offset_BEFORE_CALL_44))) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_44) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= v_main_~a~0.offset_BEFORE_CALL_44 0) (<= 0 v_main_~i~0_BEFORE_CALL_52) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:50:51,711 INFO L193 IcfgInterpreter]: Reachable states at location L28-3 satisfy 149#(and (= |old(~SIZE~0)| 0) (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= |main_#t~malloc2.offset| 0) (<= ~SIZE~0 100000) (<= 0 main_~i~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (<= 0 main_~a~0.offset) (<= 0 |#NULL.base|) (= |main_#t~malloc2.offset| 0) (= ~MAX~0 100000) (<= 0 |main_#t~malloc2.offset|) (<= 0 |old(~SIZE~0)|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= |old(~SIZE~0)| 0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:51,712 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 176#(and (exists ((v_main_~a~0.base_BEFORE_CALL_44 Int) (v_main_~i~0_BEFORE_CALL_52 Int) (v_main_~a~0.offset_BEFORE_CALL_44 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_52 ~SIZE~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_44) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (not (<= v_main_~i~0_BEFORE_CALL_52 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_44) (+ (* 4 v_main_~i~0_BEFORE_CALL_52) v_main_~a~0.offset_BEFORE_CALL_44)))) (<= v_main_~a~0.offset_BEFORE_CALL_44 0) (<= 0 v_main_~i~0_BEFORE_CALL_52) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_52 ~SIZE~0) (<= v_main_~i~0_BEFORE_CALL_52 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_44) (+ (* 4 v_main_~i~0_BEFORE_CALL_52) v_main_~a~0.offset_BEFORE_CALL_44))) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_44) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= v_main_~a~0.offset_BEFORE_CALL_44 0) (<= 0 v_main_~i~0_BEFORE_CALL_52) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:50:51,712 INFO L193 IcfgInterpreter]: Reachable states at location L19-3 satisfy 77#(and (or (and (= |old(~SIZE~0)| 0) (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= |main_#t~malloc2.offset| 0) (<= ~SIZE~0 100000) (= |main_#t~malloc2.offset| 0) (= ~MAX~0 100000) (= |#NULL.offset| 0)) (and (<= ~MAX~0 100000) (= |old(~SIZE~0)| 0) (<= |main_#t~malloc2.offset| 0) (= 0 |#NULL.base|) (< ~SIZE~0 ~MAX~0) (< 1 ~SIZE~0) (= 0 |main_#t~malloc2.offset|) (= ~MAX~0 100000) (= |#valid| (store |old(#valid)| |main_#t~malloc2.base| 1)) (= main_~a~0.offset |main_#t~malloc2.offset|) (<= ~SIZE~0 2147483647) (< |#StackHeapBarrier| |main_#t~malloc2.base|) (= (store |old(#length)| |main_#t~malloc2.base| (* 4 ~SIZE~0)) |#length|) (<= ~SIZE~0 100000) (not (= |main_#t~malloc2.base| 0)) (<= 0 (+ ~SIZE~0 2147483648)) (<= main_~i~0 0) (= 0 (select |old(#valid)| 0)) (= (select |old(#valid)| |main_#t~malloc2.base|) 0) (= |main_#t~malloc2.base| main_~a~0.base) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= main_~i~0 0))) (<= 0 main_~i~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (<= 0 main_~a~0.offset) (<= 0 |#NULL.base|) (<= 0 |main_#t~malloc2.offset|) (<= 0 |old(~SIZE~0)|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= |old(~SIZE~0)| 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:51,712 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (<= ~MAX~0 100000) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= ~SIZE~0 0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |#valid| 0)) (<= 0 ~SIZE~0) (= |#NULL.offset| 0) (<= ~SIZE~0 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:51,712 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (<= ~MAX~0 100000) (= |old(~SIZE~0)| 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (<= 0 |old(~SIZE~0)|) (= |#valid| |old(#valid)|) (<= |old(~SIZE~0)| 0) (<= 0 ~SIZE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (<= ~SIZE~0 0) (= |old(~SIZE~0)| ~SIZE~0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:51,712 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 205#(and (<= ~MAX~0 100000) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= ~SIZE~0 0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= |#valid| (store |old(#valid)| 0 0)) (<= 0 ~SIZE~0) (= |#NULL.offset| 0) (<= ~SIZE~0 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:51,713 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:50:51,713 INFO L193 IcfgInterpreter]: Reachable states at location L30-1 satisfy 167#(and (= |old(~SIZE~0)| 0) (<= ~MAX~0 100000) (<= |main_#t~malloc2.offset| 0) (<= 0 main_~i~0) (< main_~i~0 ~SIZE~0) (<= 0 |#NULL.base|) (= |main_#t~malloc2.offset| 0) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (= |main_#t~mem5| (select (select |#memory_int| main_~a~0.base) (+ (* 4 main_~i~0) main_~a~0.offset))) (<= 100000 ~MAX~0) (= |#NULL.base| 0) (<= ~SIZE~0 100000) (<= 0 |main_#t~mem5|) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (<= main_~i~0 100000) (<= 0 main_~a~0.offset) (<= 0 |main_#t~malloc2.offset|) (<= 0 |old(~SIZE~0)|) (<= |#NULL.offset| 0) (<= main_~i~0 |main_#t~mem5|) (<= |old(~SIZE~0)| 0) (= |#NULL.offset| 0)) [2019-10-07 00:50:51,713 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 171#(exists ((v_main_~a~0.base_BEFORE_CALL_44 Int) (v_main_~i~0_BEFORE_CALL_52 Int) (v_main_~a~0.offset_BEFORE_CALL_44 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (< v_main_~i~0_BEFORE_CALL_52 ~SIZE~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_44) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (not (<= v_main_~i~0_BEFORE_CALL_52 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_44) (+ (* 4 v_main_~i~0_BEFORE_CALL_52) v_main_~a~0.offset_BEFORE_CALL_44)))) (<= v_main_~a~0.offset_BEFORE_CALL_44 0) (<= 0 v_main_~i~0_BEFORE_CALL_52) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (< v_main_~i~0_BEFORE_CALL_52 ~SIZE~0) (<= v_main_~i~0_BEFORE_CALL_52 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_44) (+ (* 4 v_main_~i~0_BEFORE_CALL_52) v_main_~a~0.offset_BEFORE_CALL_44))) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_44) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= v_main_~a~0.offset_BEFORE_CALL_44 0) (<= 0 v_main_~i~0_BEFORE_CALL_52) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) [2019-10-07 00:50:51,713 INFO L193 IcfgInterpreter]: Reachable states at location L30 satisfy 154#(and (= |old(~SIZE~0)| 0) (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= |main_#t~malloc2.offset| 0) (<= ~SIZE~0 100000) (<= 0 main_~i~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (<= main_~i~0 100000) (< main_~i~0 ~SIZE~0) (<= 0 main_~a~0.offset) (<= 0 |#NULL.base|) (= |main_#t~malloc2.offset| 0) (= ~MAX~0 100000) (<= 0 |main_#t~malloc2.offset|) (<= 0 |old(~SIZE~0)|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= |main_#t~mem5| (select (select |#memory_int| main_~a~0.base) (+ (* 4 main_~i~0) main_~a~0.offset))) (<= |old(~SIZE~0)| 0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) [2019-10-07 00:50:52,846 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:50:52,847 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 12, 12] total 35 [2019-10-07 00:50:52,848 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-10-07 00:50:52,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-10-07 00:50:52,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1077, Unknown=0, NotChecked=0, Total=1190 [2019-10-07 00:50:52,849 INFO L87 Difference]: Start difference. First operand 56 states and 64 transitions. Second operand 35 states. [2019-10-07 00:51:01,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:51:01,581 INFO L93 Difference]: Finished difference Result 88 states and 99 transitions. [2019-10-07 00:51:01,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-10-07 00:51:01,582 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 29 [2019-10-07 00:51:01,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:51:01,583 INFO L225 Difference]: With dead ends: 88 [2019-10-07 00:51:01,583 INFO L226 Difference]: Without dead ends: 86 [2019-10-07 00:51:01,585 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 55 SyntacticMatches, 11 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1222 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=467, Invalid=4087, Unknown=2, NotChecked=0, Total=4556 [2019-10-07 00:51:01,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2019-10-07 00:51:01,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 77. [2019-10-07 00:51:01,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-10-07 00:51:01,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 88 transitions. [2019-10-07 00:51:01,610 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 88 transitions. Word has length 29 [2019-10-07 00:51:01,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:51:01,610 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 88 transitions. [2019-10-07 00:51:01,610 INFO L463 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-10-07 00:51:01,610 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 88 transitions. [2019-10-07 00:51:01,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-07 00:51:01,612 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:51:01,612 INFO L385 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:51:01,827 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:51:01,828 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:51:01,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:51:01,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1627315574, now seen corresponding path program 5 times [2019-10-07 00:51:01,829 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:51:01,829 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:51:01,829 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:51:01,829 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:51:01,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:51:01,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:51:02,090 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-07 00:51:02,091 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:51:02,091 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:51:02,091 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:51:02,187 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-10-07 00:51:02,187 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-07 00:51:02,189 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 38 conjunts are in the unsatisfiable core [2019-10-07 00:51:02,193 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:51:02,473 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:51:02,704 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 68 [2019-10-07 00:51:02,907 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2019-10-07 00:51:03,078 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2019-10-07 00:51:04,270 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 00:51:04,270 INFO L322 TraceCheckSpWp]: Computing backward predicates...