java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/array-examples/standard_copy3_ground-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-06 23:30:53,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-06 23:30:53,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-06 23:30:53,536 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-06 23:30:53,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-06 23:30:53,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-06 23:30:53,538 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-06 23:30:53,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-06 23:30:53,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-06 23:30:53,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-06 23:30:53,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-06 23:30:53,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-06 23:30:53,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-06 23:30:53,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-06 23:30:53,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-06 23:30:53,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-06 23:30:53,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-06 23:30:53,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-06 23:30:53,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-06 23:30:53,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-06 23:30:53,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-06 23:30:53,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-06 23:30:53,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-06 23:30:53,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-06 23:30:53,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-06 23:30:53,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-06 23:30:53,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-06 23:30:53,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-06 23:30:53,569 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 [2019-10-06 23:30:53,582 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-06 23:30:53,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-06 23:30:53,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-06 23:30:53,585 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-06 23:30:53,585 INFO L138 SettingsManager]: * Use SBE=true [2019-10-06 23:30:53,585 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-06 23:30:53,585 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-06 23:30:53,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-06 23:30:53,586 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-06 23:30:53,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-06 23:30:53,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-06 23:30:53,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-06 23:30:53,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-06 23:30:53,587 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-06 23:30:53,587 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-06 23:30:53,587 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-06 23:30:53,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-06 23:30:53,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-06 23:30:53,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-06 23:30:53,588 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-06 23:30:53,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-06 23:30:53,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-06 23:30:53,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-06 23:30:53,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-06 23:30:53,591 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-06 23:30:53,591 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-06 23:30:53,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-06 23:30:53,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-06 23:30:53,592 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 [2019-10-06 23:30:53,865 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-06 23:30:53,880 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-06 23:30:53,883 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-06 23:30:53,884 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-06 23:30:53,885 INFO L275 PluginConnector]: CDTParser initialized [2019-10-06 23:30:53,886 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_copy3_ground-1.i [2019-10-06 23:30:53,963 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/665e62fb8/b1db538e8c964c368435c0a3311bd1af/FLAG22f257172 [2019-10-06 23:30:54,414 INFO L306 CDTParser]: Found 1 translation units. [2019-10-06 23:30:54,415 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_copy3_ground-1.i [2019-10-06 23:30:54,422 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/665e62fb8/b1db538e8c964c368435c0a3311bd1af/FLAG22f257172 [2019-10-06 23:30:54,787 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/665e62fb8/b1db538e8c964c368435c0a3311bd1af [2019-10-06 23:30:54,797 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-06 23:30:54,799 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-06 23:30:54,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-06 23:30:54,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-06 23:30:54,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-06 23:30:54,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 11:30:54" (1/1) ... [2019-10-06 23:30:54,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@364da557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 11:30:54, skipping insertion in model container [2019-10-06 23:30:54,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 11:30:54" (1/1) ... [2019-10-06 23:30:54,813 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-06 23:30:54,827 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-06 23:30:54,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-06 23:30:55,001 INFO L188 MainTranslator]: Completed pre-run [2019-10-06 23:30:55,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-06 23:30:55,046 INFO L192 MainTranslator]: Completed translation [2019-10-06 23:30:55,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 11:30:55 WrapperNode [2019-10-06 23:30:55,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-06 23:30:55,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-06 23:30:55,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-06 23:30:55,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-06 23:30:55,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 11:30:55" (1/1) ... [2019-10-06 23:30:55,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 11:30:55" (1/1) ... [2019-10-06 23:30:55,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 11:30:55" (1/1) ... [2019-10-06 23:30:55,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 11:30:55" (1/1) ... [2019-10-06 23:30:55,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 11:30:55" (1/1) ... [2019-10-06 23:30:55,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 11:30:55" (1/1) ... [2019-10-06 23:30:55,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 11:30:55" (1/1) ... [2019-10-06 23:30:55,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-06 23:30:55,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-06 23:30:55,181 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-06 23:30:55,181 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-06 23:30:55,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 11:30:55" (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 [2019-10-06 23:30:55,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-06 23:30:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-06 23:30:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-06 23:30:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-06 23:30:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-06 23:30:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-06 23:30:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-06 23:30:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-06 23:30:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-06 23:30:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-06 23:30:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-06 23:30:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-06 23:30:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-06 23:30:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-06 23:30:55,634 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-06 23:30:55,634 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-06 23:30:55,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 11:30:55 BoogieIcfgContainer [2019-10-06 23:30:55,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-06 23:30:55,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-06 23:30:55,637 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-06 23:30:55,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-06 23:30:55,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 11:30:54" (1/3) ... [2019-10-06 23:30:55,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a86a16d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 11:30:55, skipping insertion in model container [2019-10-06 23:30:55,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 11:30:55" (2/3) ... [2019-10-06 23:30:55,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a86a16d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 11:30:55, skipping insertion in model container [2019-10-06 23:30:55,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 11:30:55" (3/3) ... [2019-10-06 23:30:55,644 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_copy3_ground-1.i [2019-10-06 23:30:55,653 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-06 23:30:55,660 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-06 23:30:55,671 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-06 23:30:55,693 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-06 23:30:55,693 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-06 23:30:55,693 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-06 23:30:55,693 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-06 23:30:55,694 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-06 23:30:55,694 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-06 23:30:55,694 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-06 23:30:55,694 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-06 23:30:55,712 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-10-06 23:30:55,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-06 23:30:55,718 INFO L377 BasicCegarLoop]: Found error trace [2019-10-06 23:30:55,719 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-06 23:30:55,720 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-06 23:30:55,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-06 23:30:55,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1206026117, now seen corresponding path program 1 times [2019-10-06 23:30:55,732 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-06 23:30:55,732 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:30:55,733 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:30:55,733 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:30:55,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-06 23:30:55,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-06 23:30:55,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-06 23:30:55,893 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:30:55,894 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-06 23:30:55,894 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-06 23:30:55,898 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-06 23:30:55,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-06 23:30:55,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-06 23:30:55,915 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2019-10-06 23:30:55,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-06 23:30:55,950 INFO L93 Difference]: Finished difference Result 37 states and 48 transitions. [2019-10-06 23:30:55,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-06 23:30:55,951 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-10-06 23:30:55,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-06 23:30:55,958 INFO L225 Difference]: With dead ends: 37 [2019-10-06 23:30:55,959 INFO L226 Difference]: Without dead ends: 19 [2019-10-06 23:30:55,962 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 [2019-10-06 23:30:55,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-10-06 23:30:55,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-10-06 23:30:56,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-06 23:30:56,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2019-10-06 23:30:56,003 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 14 [2019-10-06 23:30:56,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-06 23:30:56,003 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2019-10-06 23:30:56,003 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-06 23:30:56,004 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2019-10-06 23:30:56,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-06 23:30:56,005 INFO L377 BasicCegarLoop]: Found error trace [2019-10-06 23:30:56,005 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-06 23:30:56,005 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-06 23:30:56,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-06 23:30:56,006 INFO L82 PathProgramCache]: Analyzing trace with hash 89083319, now seen corresponding path program 1 times [2019-10-06 23:30:56,006 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-06 23:30:56,007 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:30:56,007 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:30:56,007 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:30:56,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-06 23:30:56,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-06 23:30:56,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-06 23:30:56,095 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:30:56,096 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-06 23:30:56,096 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-06 23:30:56,098 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-06 23:30:56,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-06 23:30:56,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-06 23:30:56,099 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand 3 states. [2019-10-06 23:30:56,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-06 23:30:56,132 INFO L93 Difference]: Finished difference Result 33 states and 42 transitions. [2019-10-06 23:30:56,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-06 23:30:56,133 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-10-06 23:30:56,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-06 23:30:56,134 INFO L225 Difference]: With dead ends: 33 [2019-10-06 23:30:56,135 INFO L226 Difference]: Without dead ends: 22 [2019-10-06 23:30:56,136 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 [2019-10-06 23:30:56,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-10-06 23:30:56,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-10-06 23:30:56,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-10-06 23:30:56,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2019-10-06 23:30:56,142 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 15 [2019-10-06 23:30:56,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-06 23:30:56,143 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2019-10-06 23:30:56,143 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-06 23:30:56,143 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2019-10-06 23:30:56,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-06 23:30:56,144 INFO L377 BasicCegarLoop]: Found error trace [2019-10-06 23:30:56,144 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-06 23:30:56,144 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-06 23:30:56,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-06 23:30:56,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1551222113, now seen corresponding path program 1 times [2019-10-06 23:30:56,145 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-06 23:30:56,146 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:30:56,146 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:30:56,146 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-06 23:30:56,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-06 23:30:56,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-06 23:30:56,254 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-06 23:30:56,254 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-06 23:30:56,254 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-06 23:30:56,255 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 [2019-10-06 23:30:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-06 23:30:56,319 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-06 23:30:56,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-06 23:30:56,361 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-06 23:30:56,362 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-06 23:30:56,399 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-06 23:30:56,400 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-06 23:30:56,426 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-06 23:30:56,426 INFO L169 IcfgInterpreter]: Building call graph [2019-10-06 23:30:56,433 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-06 23:30:56,441 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-06 23:30:56,442 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-06 23:30:56,609 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 21 for LOIs [2019-10-06 23:30:57,084 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2019-10-06 23:30:57,712 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 29 for LOIs [2019-10-06 23:30:57,734 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-06 23:30:57,742 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-06 23:30:57,742 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-06 23:30:57,742 INFO L193 IcfgInterpreter]: Reachable states at location L14-3 satisfy 111#(and (<= 100000 main_~a~0) (<= 0 main_~i~0)) [2019-10-06 23:30:57,743 INFO L193 IcfgInterpreter]: Reachable states at location L2 satisfy 217#(and (exists ((|v_main_~#a1~0.base_BEFORE_CALL_1| Int) (|v_main_~#a1~0.offset_BEFORE_CALL_1| Int) (|v_main_~#a4~0.offset_BEFORE_CALL_1| Int) (v_prenex_4 Int) (v_prenex_2 Int) (v_prenex_3 Int) (|v_main_~#a4~0.base_BEFORE_CALL_1| Int) (v_prenex_1 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (not (= (select (select |#memory_int| |v_main_~#a1~0.base_BEFORE_CALL_1|) |v_main_~#a1~0.offset_BEFORE_CALL_1|) (select (select |#memory_int| |v_main_~#a4~0.base_BEFORE_CALL_1|) |v_main_~#a4~0.offset_BEFORE_CALL_1|)))) (and (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| v_prenex_1) v_prenex_2) (select (select |#memory_int| v_prenex_4) v_prenex_3))))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-06 23:30:57,743 INFO L193 IcfgInterpreter]: Reachable states at location L2-1 satisfy 222#(and (exists ((|v_main_~#a1~0.base_BEFORE_CALL_1| Int) (|v_main_~#a1~0.offset_BEFORE_CALL_1| Int) (|v_main_~#a4~0.offset_BEFORE_CALL_1| Int) (v_prenex_4 Int) (v_prenex_2 Int) (v_prenex_3 Int) (|v_main_~#a4~0.base_BEFORE_CALL_1| Int) (v_prenex_1 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (not (= (select (select |#memory_int| |v_main_~#a1~0.base_BEFORE_CALL_1|) |v_main_~#a1~0.offset_BEFORE_CALL_1|) (select (select |#memory_int| |v_main_~#a4~0.base_BEFORE_CALL_1|) |v_main_~#a4~0.offset_BEFORE_CALL_1|)))) (and (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| v_prenex_1) v_prenex_2) (select (select |#memory_int| v_prenex_4) v_prenex_3))))) (<= __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)) [2019-10-06 23:30:57,743 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 231#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-06 23:30:57,744 INFO L193 IcfgInterpreter]: Reachable states at location L17-3 satisfy 154#(and (<= 100000 main_~a~0) (<= 0 main_~i~0)) [2019-10-06 23:30:57,744 INFO L193 IcfgInterpreter]: Reachable states at location L25 satisfy 207#(and (<= 100000 main_~a~0) (< main_~x~0 100000) (= |main_#t~mem10| (select (select |#memory_int| |main_~#a4~0.base|) (+ (* 4 main_~x~0) |main_~#a4~0.offset|))) (<= 0 main_~i~0) (= main_~x~0 0) (= (select (select |#memory_int| |main_~#a1~0.base|) (+ (* 4 main_~x~0) |main_~#a1~0.offset|)) |main_#t~mem9|) (<= 100000 main_~i~0) (not (< main_~i~0 100000)) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-06 23:30:57,745 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 227#(and (exists ((|v_main_~#a1~0.base_BEFORE_CALL_1| Int) (|v_main_~#a1~0.offset_BEFORE_CALL_1| Int) (|v_main_~#a4~0.offset_BEFORE_CALL_1| Int) (v_prenex_4 Int) (v_prenex_2 Int) (v_prenex_3 Int) (|v_main_~#a4~0.base_BEFORE_CALL_1| Int) (v_prenex_1 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (not (= (select (select |#memory_int| |v_main_~#a1~0.base_BEFORE_CALL_1|) |v_main_~#a1~0.offset_BEFORE_CALL_1|) (select (select |#memory_int| |v_main_~#a4~0.base_BEFORE_CALL_1|) |v_main_~#a4~0.offset_BEFORE_CALL_1|)))) (and (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| v_prenex_1) v_prenex_2) (select (select |#memory_int| v_prenex_4) v_prenex_3))))) (<= __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)) [2019-10-06 23:30:57,745 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:30:57,745 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= |#valid| |old(#valid)|) (<= 0 |#NULL.base|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:30:57,750 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 236#(and (= |#valid| (store |old(#valid)| 0 0)) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-06 23:30:57,750 INFO L193 IcfgInterpreter]: Reachable states at location L20-3 satisfy 197#(and (<= 100000 main_~a~0) (<= 0 main_~i~0)) [2019-10-06 23:30:57,750 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-06 23:30:57,751 INFO L193 IcfgInterpreter]: Reachable states at location L10-3 satisfy 68#true [2019-10-06 23:30:57,751 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 212#(exists ((|v_main_~#a1~0.base_BEFORE_CALL_1| Int) (|v_main_~#a1~0.offset_BEFORE_CALL_1| Int) (|v_main_~#a4~0.offset_BEFORE_CALL_1| Int) (v_prenex_4 Int) (v_prenex_2 Int) (v_prenex_3 Int) (|v_main_~#a4~0.base_BEFORE_CALL_1| Int) (v_prenex_1 Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (not (= (select (select |#memory_int| |v_main_~#a1~0.base_BEFORE_CALL_1|) |v_main_~#a1~0.offset_BEFORE_CALL_1|) (select (select |#memory_int| |v_main_~#a4~0.base_BEFORE_CALL_1|) |v_main_~#a4~0.offset_BEFORE_CALL_1|)))) (and (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| v_prenex_1) v_prenex_2) (select (select |#memory_int| v_prenex_4) v_prenex_3))))) [2019-10-06 23:30:57,751 INFO L193 IcfgInterpreter]: Reachable states at location L24-3 satisfy 202#(and (<= 100000 main_~a~0) (<= 0 main_~i~0) (= main_~x~0 0) (<= 100000 main_~i~0) (not (< main_~i~0 100000)) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-06 23:30:58,041 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-06 23:30:58,042 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 11] total 17 [2019-10-06 23:30:58,044 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-10-06 23:30:58,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-06 23:30:58,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2019-10-06 23:30:58,047 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 17 states. [2019-10-06 23:30:58,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-06 23:30:58,435 INFO L93 Difference]: Finished difference Result 35 states and 48 transitions. [2019-10-06 23:30:58,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-06 23:30:58,435 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 18 [2019-10-06 23:30:58,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-06 23:30:58,436 INFO L225 Difference]: With dead ends: 35 [2019-10-06 23:30:58,436 INFO L226 Difference]: Without dead ends: 0 [2019-10-06 23:30:58,437 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=103, Invalid=547, Unknown=0, NotChecked=0, Total=650 [2019-10-06 23:30:58,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-06 23:30:58,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-06 23:30:58,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-06 23:30:58,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-06 23:30:58,438 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-10-06 23:30:58,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-06 23:30:58,439 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-06 23:30:58,439 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-10-06 23:30:58,439 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-06 23:30:58,439 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-06 23:30:58,644 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-06 23:30:58,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-06 23:30:58,988 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-06 23:30:58,988 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-06 23:30:58,988 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-06 23:30:58,989 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (<= |#NULL.offset| 0) (<= 0 |#NULL.offset|)) [2019-10-06 23:30:58,989 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-06 23:30:58,989 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-06 23:30:58,989 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 4 28) no Hoare annotation was computed. [2019-10-06 23:30:58,990 INFO L439 ceAbstractionStarter]: At program point L24-3(lines 24 26) the Hoare annotation is: (or (and (<= 100000 main_~a~0) (<= 100000 main_~i~0) (= 0 (select |#valid| 0)) (<= main_~x~0 0) (<= 0 main_~x~0)) (not (<= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (not (= 0 (select |old(#valid)| 0))) (not (<= 0 |#NULL.offset|)) (not (<= |#NULL.base| 0))) [2019-10-06 23:30:58,990 INFO L439 ceAbstractionStarter]: At program point L20-3(lines 20 22) the Hoare annotation is: (or (and (<= 100000 main_~a~0) (<= 0 main_~i~0) (= 0 (select |#valid| 0))) (not (<= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (not (= 0 (select |old(#valid)| 0))) (not (<= 0 |#NULL.offset|)) (not (<= |#NULL.base| 0))) [2019-10-06 23:30:58,990 INFO L439 ceAbstractionStarter]: At program point L25(line 25) the Hoare annotation is: (or (not (<= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (not (= 0 (select |old(#valid)| 0))) (not (<= 0 |#NULL.offset|)) (not (<= |#NULL.base| 0))) [2019-10-06 23:30:58,991 INFO L443 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2019-10-06 23:30:58,991 INFO L439 ceAbstractionStarter]: At program point L17-3(lines 17 19) the Hoare annotation is: (or (and (<= 100000 main_~a~0) (<= 0 main_~i~0) (= 0 (select |#valid| 0))) (not (<= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (not (= 0 (select |old(#valid)| 0))) (not (<= 0 |#NULL.offset|)) (not (<= |#NULL.base| 0))) [2019-10-06 23:30:58,991 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 4 28) the Hoare annotation is: (or (not (<= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|)) (not (= 0 (select |old(#valid)| 0))) (not (<= 0 |#NULL.offset|)) (not (<= |#NULL.base| 0))) [2019-10-06 23:30:58,992 INFO L439 ceAbstractionStarter]: At program point L14-3(lines 14 16) the Hoare annotation is: (or (and (<= 100000 main_~a~0) (<= 0 main_~i~0) (= 0 (select |#valid| 0))) (not (<= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (not (= 0 (select |old(#valid)| 0))) (not (<= 0 |#NULL.offset|)) (not (<= |#NULL.base| 0))) [2019-10-06 23:30:58,992 INFO L439 ceAbstractionStarter]: At program point L10-3(lines 10 12) the Hoare annotation is: (or (not (<= |#NULL.offset| 0)) (= 0 (select |#valid| 0)) (not (<= 0 |#NULL.base|)) (not (= 0 (select |old(#valid)| 0))) (not (<= 0 |#NULL.offset|)) (not (<= |#NULL.base| 0))) [2019-10-06 23:30:58,992 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-10-06 23:30:58,992 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-10-06 23:30:58,993 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-10-06 23:30:58,993 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-10-06 23:30:58,993 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-10-06 23:30:58,993 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-10-06 23:30:59,003 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,004 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,004 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,005 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,012 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,013 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,013 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,013 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,015 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,015 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,015 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,015 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,016 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,016 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,016 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,017 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,018 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,019 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,019 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,019 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,021 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,022 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,022 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,022 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,028 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,030 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,031 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,031 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,039 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,039 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,040 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,040 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,056 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,056 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,057 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,057 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,060 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,061 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,061 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,061 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 11:30:59 BoogieIcfgContainer [2019-10-06 23:30:59,068 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-06 23:30:59,071 INFO L168 Benchmark]: Toolchain (without parser) took 4271.51 ms. Allocated memory was 144.7 MB in the beginning and 247.5 MB in the end (delta: 102.8 MB). Free memory was 101.7 MB in the beginning and 218.3 MB in the end (delta: -116.6 MB). Peak memory consumption was 112.9 MB. Max. memory is 7.1 GB. [2019-10-06 23:30:59,075 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-06 23:30:59,076 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.52 ms. Allocated memory is still 144.7 MB. Free memory was 101.5 MB in the beginning and 91.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-10-06 23:30:59,077 INFO L168 Benchmark]: Boogie Preprocessor took 133.08 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 91.3 MB in the beginning and 179.4 MB in the end (delta: -88.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-10-06 23:30:59,080 INFO L168 Benchmark]: RCFGBuilder took 454.82 ms. Allocated memory is still 201.9 MB. Free memory was 179.4 MB in the beginning and 156.5 MB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2019-10-06 23:30:59,081 INFO L168 Benchmark]: TraceAbstraction took 3431.25 ms. Allocated memory was 201.9 MB in the beginning and 247.5 MB in the end (delta: 45.6 MB). Free memory was 155.9 MB in the beginning and 218.3 MB in the end (delta: -62.4 MB). Peak memory consumption was 109.9 MB. Max. memory is 7.1 GB. [2019-10-06 23:30:59,090 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 247.52 ms. Allocated memory is still 144.7 MB. Free memory was 101.5 MB in the beginning and 91.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.08 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 91.3 MB in the beginning and 179.4 MB in the end (delta: -88.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 454.82 ms. Allocated memory is still 201.9 MB. Free memory was 179.4 MB in the beginning and 156.5 MB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3431.25 ms. Allocated memory was 201.9 MB in the beginning and 247.5 MB in the end (delta: 45.6 MB). Free memory was 155.9 MB in the beginning and 218.3 MB in the end (delta: -62.4 MB). Peak memory consumption was 109.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant [2019-10-06 23:30:59,109 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,109 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,111 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,111 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,112 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,112 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL Derived loop invariant: ((((((100000 <= a && 0 <= i) && 0 == \valid[0]) || !(#NULL <= 0)) || !(0 <= #NULL)) || !(0 == \old(\valid)[0])) || !(0 <= #NULL)) || !(#NULL <= 0) - InvariantResult [Line: 20]: Loop Invariant [2019-10-06 23:30:59,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,114 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,114 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,115 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,115 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,116 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,117 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,118 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL Derived loop invariant: ((((((100000 <= a && 0 <= i) && 0 == \valid[0]) || !(#NULL <= 0)) || !(0 <= #NULL)) || !(0 == \old(\valid)[0])) || !(0 <= #NULL)) || !(#NULL <= 0) - InvariantResult [Line: 10]: Loop Invariant [2019-10-06 23:30:59,118 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,119 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,119 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,119 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,120 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,122 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,123 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,123 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL Derived loop invariant: ((((!(#NULL <= 0) || 0 == \valid[0]) || !(0 <= #NULL)) || !(0 == \old(\valid)[0])) || !(0 <= #NULL)) || !(#NULL <= 0) - InvariantResult [Line: 17]: Loop Invariant [2019-10-06 23:30:59,125 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,125 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,125 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,125 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,128 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,128 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,128 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,128 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL Derived loop invariant: ((((((100000 <= a && 0 <= i) && 0 == \valid[0]) || !(#NULL <= 0)) || !(0 <= #NULL)) || !(0 == \old(\valid)[0])) || !(0 <= #NULL)) || !(#NULL <= 0) - InvariantResult [Line: 24]: Loop Invariant [2019-10-06 23:30:59,131 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,131 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,131 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,132 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,132 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,134 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,134 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-06 23:30:59,135 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL Derived loop invariant: ((((((((100000 <= a && 100000 <= i) && 0 == \valid[0]) && x <= 0) && 0 <= x) || !(#NULL <= 0)) || !(0 <= #NULL)) || !(0 == \old(\valid)[0])) || !(0 <= #NULL)) || !(#NULL <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. Result: SAFE, OverallTime: 3.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 47 SDtfs, 4 SDslu, 61 SDs, 0 SdLazy, 101 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 13 PreInvPairs, 27 NumberOfFragments, 260 HoareAnnotationTreeSize, 13 FomulaSimplifications, 169 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 156 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 1490 SizeOfPredicates, 1 NumberOfNonLiveVariables, 98 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 10/13 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 1326, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 37, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 23, TOOLS_POST_TIME[ms]: 752, TOOLS_POST_CALL_APPLICATIONS: 5, TOOLS_POST_CALL_TIME[ms]: 14, TOOLS_POST_RETURN_APPLICATIONS: 2, TOOLS_POST_RETURN_TIME[ms]: 2, TOOLS_QUANTIFIERELIM_APPLICATIONS: 30, TOOLS_QUANTIFIERELIM_TIME[ms]: 751, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 173, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 49, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 34, DOMAIN_JOIN_TIME[ms]: 327, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 8, DOMAIN_WIDEN_TIME[ms]: 103, DOMAIN_ISSUBSETEQ_APPLICATIONS: 12, DOMAIN_ISSUBSETEQ_TIME[ms]: 30, DOMAIN_ISBOTTOM_APPLICATIONS: 1, DOMAIN_ISBOTTOM_TIME[ms]: 2, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 937, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 937, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 12, CALL_SUMMARIZER_APPLICATIONS: 2, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME[ms]: 63, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 63, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 6, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 16, DAG_COMPRESSION_PROCESSED_NODES: 111, DAG_COMPRESSION_RETAINED_NODES: 55, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...