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/loop-lit/jm2006_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 13:43:21,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 13:43:21,319 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 13:43:21,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 13:43:21,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 13:43:21,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 13:43:21,340 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 13:43:21,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 13:43:21,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 13:43:21,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 13:43:21,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 13:43:21,360 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 13:43:21,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 13:43:21,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 13:43:21,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 13:43:21,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 13:43:21,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 13:43:21,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 13:43:21,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 13:43:21,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 13:43:21,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 13:43:21,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 13:43:21,383 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 13:43:21,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 13:43:21,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-07 13:43:21,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 13:43:21,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 13:43:21,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 13:43:21,399 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 13:43:21,425 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 13:43:21,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 13:43:21,430 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 13:43:21,430 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 13:43:21,430 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 13:43:21,431 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 13:43:21,431 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 13:43:21,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 13:43:21,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 13:43:21,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 13:43:21,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 13:43:21,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 13:43:21,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 13:43:21,435 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 13:43:21,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 13:43:21,436 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 13:43:21,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 13:43:21,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 13:43:21,438 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 13:43:21,438 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 13:43:21,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 13:43:21,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 13:43:21,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 13:43:21,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 13:43:21,439 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 13:43:21,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 13:43:21,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 13:43:21,440 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 13:43:21,440 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 13:43:21,713 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 13:43:21,726 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 13:43:21,730 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 13:43:21,731 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 13:43:21,731 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 13:43:21,732 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i [2019-10-07 13:43:21,807 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce82ba0f2/9c06ed4305034be9b39cca2892e274c8/FLAG56a18a002 [2019-10-07 13:43:22,258 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 13:43:22,259 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant.i [2019-10-07 13:43:22,265 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce82ba0f2/9c06ed4305034be9b39cca2892e274c8/FLAG56a18a002 [2019-10-07 13:43:22,643 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce82ba0f2/9c06ed4305034be9b39cca2892e274c8 [2019-10-07 13:43:22,657 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 13:43:22,659 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 13:43:22,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 13:43:22,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 13:43:22,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 13:43:22,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:43:22" (1/1) ... [2019-10-07 13:43:22,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70e04f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:22, skipping insertion in model container [2019-10-07 13:43:22,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:43:22" (1/1) ... [2019-10-07 13:43:22,677 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 13:43:22,701 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 13:43:22,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:43:22,974 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 13:43:22,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:43:23,013 INFO L192 MainTranslator]: Completed translation [2019-10-07 13:43:23,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:23 WrapperNode [2019-10-07 13:43:23,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 13:43:23,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 13:43:23,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 13:43:23,014 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 13:43:23,121 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:23" (1/1) ... [2019-10-07 13:43:23,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:23" (1/1) ... [2019-10-07 13:43:23,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:23" (1/1) ... [2019-10-07 13:43:23,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:23" (1/1) ... [2019-10-07 13:43:23,135 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:23" (1/1) ... [2019-10-07 13:43:23,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:23" (1/1) ... [2019-10-07 13:43:23,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:23" (1/1) ... [2019-10-07 13:43:23,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 13:43:23,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 13:43:23,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 13:43:23,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 13:43:23,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:23" (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 13:43:23,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 13:43:23,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 13:43:23,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-07 13:43:23,213 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 13:43:23,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 13:43:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 13:43:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-07 13:43:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 13:43:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 13:43:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 13:43:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 13:43:23,406 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 13:43:23,406 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-07 13:43:23,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:43:23 BoogieIcfgContainer [2019-10-07 13:43:23,407 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 13:43:23,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 13:43:23,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 13:43:23,412 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 13:43:23,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 01:43:22" (1/3) ... [2019-10-07 13:43:23,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77264462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:43:23, skipping insertion in model container [2019-10-07 13:43:23,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:43:23" (2/3) ... [2019-10-07 13:43:23,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77264462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:43:23, skipping insertion in model container [2019-10-07 13:43:23,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:43:23" (3/3) ... [2019-10-07 13:43:23,416 INFO L109 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2019-10-07 13:43:23,427 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 13:43:23,435 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 13:43:23,450 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 13:43:23,492 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 13:43:23,492 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 13:43:23,492 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 13:43:23,492 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 13:43:23,492 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 13:43:23,493 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 13:43:23,493 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 13:43:23,493 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 13:43:23,518 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-10-07 13:43:23,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-07 13:43:23,524 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:43:23,526 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:43:23,528 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:43:23,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:43:23,536 INFO L82 PathProgramCache]: Analyzing trace with hash -856020882, now seen corresponding path program 1 times [2019-10-07 13:43:23,547 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:43:23,547 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:43:23,548 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:43:23,548 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:43:23,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:43:23,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:43:23,931 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 21 [2019-10-07 13:43:24,052 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 13:43:24,053 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:43:24,054 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:43:24,054 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 13:43:24,058 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 13:43:24,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 13:43:24,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 13:43:24,073 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 7 states. [2019-10-07 13:43:24,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:43:24,324 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2019-10-07 13:43:24,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 13:43:24,327 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-10-07 13:43:24,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:43:24,336 INFO L225 Difference]: With dead ends: 43 [2019-10-07 13:43:24,337 INFO L226 Difference]: Without dead ends: 15 [2019-10-07 13:43:24,340 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-10-07 13:43:24,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-10-07 13:43:24,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-10-07 13:43:24,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-10-07 13:43:24,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-10-07 13:43:24,383 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2019-10-07 13:43:24,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:43:24,384 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-10-07 13:43:24,384 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 13:43:24,384 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-10-07 13:43:24,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-07 13:43:24,385 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:43:24,386 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:43:24,386 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:43:24,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:43:24,387 INFO L82 PathProgramCache]: Analyzing trace with hash -954924099, now seen corresponding path program 1 times [2019-10-07 13:43:24,387 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:43:24,387 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:43:24,388 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:43:24,388 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:43:24,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:43:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:43:24,623 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 13:43:24,624 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:43:24,625 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:43:24,625 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 13:43:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:43:24,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 22 conjunts are in the unsatisfiable core [2019-10-07 13:43:24,698 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:43:24,836 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 13:43:24,836 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 13:43:24,951 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 13:43:24,951 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 13:43:24,979 INFO L162 IcfgInterpreter]: Started Sifa with 14 locations of interest [2019-10-07 13:43:24,979 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 13:43:25,006 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 13:43:25,016 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 13:43:25,016 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 13:43:25,069 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-10-07 13:43:25,409 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-10-07 13:43:25,458 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 1 for LOIs [2019-10-07 13:43:25,464 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 13:43:25,464 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 13:43:25,465 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initFINAL satisfy 115#true [2019-10-07 13:43:25,465 INFO L193 IcfgInterpreter]: Reachable states at location L14 satisfy 38#(and (<= main_~i~0 2147483647) (<= 0 (+ main_~i~0 2147483648)) (<= 0 (+ main_~j~0 2147483648)) (<= main_~j~0 2147483647)) [2019-10-07 13:43:25,465 INFO L193 IcfgInterpreter]: Reachable states at location L25 satisfy 91#(and (<= 0 main_~j~0) (= main_~i~0 main_~j~0) (<= 0 main_~i~0) (= main_~x~0 0) (<= main_~i~0 1000000) (<= main_~y~0 2147483647) (<= main_~x~0 1000000) (<= 0 main_~z~0) (<= main_~j~0 1000000) (<= main_~j~0 2147483647) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-07 13:43:25,466 INFO L193 IcfgInterpreter]: Reachable states at location L4 satisfy 101#(and (or (and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) (and (<= 1 __VERIFIER_assert_~cond) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1))) (or (and (= |__VERIFIER_assert_#in~cond| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)))) [2019-10-07 13:43:25,467 INFO L193 IcfgInterpreter]: Reachable states at location L15 satisfy 43#(and (<= main_~i~0 2147483647) (<= 0 main_~i~0) (<= 0 (+ main_~i~0 2147483648)) (<= main_~i~0 1000000) (<= 0 (+ main_~j~0 2147483648)) (<= main_~j~0 2147483647)) [2019-10-07 13:43:25,467 INFO L193 IcfgInterpreter]: Reachable states at location L19-3 satisfy 86#(and (<= 0 main_~j~0) (<= 0 main_~i~0) (= main_~x~0 0) (<= main_~i~0 1000000) (<= main_~y~0 2147483647) (<= main_~x~0 1000000) (<= 0 main_~z~0) (<= main_~j~0 2147483647) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-07 13:43:25,467 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 111#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) [2019-10-07 13:43:25,468 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#true [2019-10-07 13:43:25,468 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#true [2019-10-07 13:43:25,468 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 120#true [2019-10-07 13:43:25,468 INFO L193 IcfgInterpreter]: Reachable states at location L19-2 satisfy 81#(and (<= 0 main_~j~0) (<= 0 main_~i~0) (<= main_~i~0 1000000) (<= main_~y~0 2147483647) (<= main_~x~0 1000000) (<= 0 main_~z~0) (<= main_~j~0 2147483647)) [2019-10-07 13:43:25,469 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 13:43:25,470 INFO L193 IcfgInterpreter]: Reachable states at location L5 satisfy 106#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) [2019-10-07 13:43:25,470 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 96#(and (or (and (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1)) (and (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0))) (or (= |__VERIFIER_assert_#in~cond| 0) (= |__VERIFIER_assert_#in~cond| 1))) [2019-10-07 13:43:25,866 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 13:43:25,867 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 11] total 25 [2019-10-07 13:43:25,869 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-07 13:43:25,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-07 13:43:25,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=513, Unknown=0, NotChecked=0, Total=600 [2019-10-07 13:43:25,871 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 25 states. [2019-10-07 13:43:26,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:43:26,382 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2019-10-07 13:43:26,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-07 13:43:26,383 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 14 [2019-10-07 13:43:26,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:43:26,384 INFO L225 Difference]: With dead ends: 26 [2019-10-07 13:43:26,384 INFO L226 Difference]: Without dead ends: 18 [2019-10-07 13:43:26,386 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=196, Invalid=926, Unknown=0, NotChecked=0, Total=1122 [2019-10-07 13:43:26,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-10-07 13:43:26,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-10-07 13:43:26,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-07 13:43:26,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-10-07 13:43:26,395 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 14 [2019-10-07 13:43:26,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:43:26,396 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-10-07 13:43:26,396 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-10-07 13:43:26,396 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-10-07 13:43:26,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-07 13:43:26,404 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:43:26,404 INFO L385 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:43:26,617 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:43:26,618 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:43:26,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:43:26,619 INFO L82 PathProgramCache]: Analyzing trace with hash -360840146, now seen corresponding path program 2 times [2019-10-07 13:43:26,619 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:43:26,620 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:43:26,620 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:43:26,620 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:43:26,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:43:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:43:26,834 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 13:43:26,835 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:43:26,835 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:43:26,835 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 13:43:26,878 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-10-07 13:43:26,879 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-07 13:43:26,880 WARN L254 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 40 conjunts are in the unsatisfiable core [2019-10-07 13:43:26,885 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:43:27,087 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:43:27,088 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 13:43:27,263 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:43:27,263 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 13:43:27,265 INFO L162 IcfgInterpreter]: Started Sifa with 14 locations of interest [2019-10-07 13:43:27,265 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 13:43:27,266 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 13:43:27,266 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 13:43:27,266 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 13:43:27,276 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-10-07 13:43:27,388 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-10-07 13:43:27,405 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 1 for LOIs [2019-10-07 13:43:27,408 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 13:43:27,408 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 13:43:27,408 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initFINAL satisfy 115#true [2019-10-07 13:43:27,409 INFO L193 IcfgInterpreter]: Reachable states at location L14 satisfy 38#(and (<= main_~i~0 2147483647) (<= 0 (+ main_~i~0 2147483648)) (<= 0 (+ main_~j~0 2147483648)) (<= main_~j~0 2147483647)) [2019-10-07 13:43:27,409 INFO L193 IcfgInterpreter]: Reachable states at location L25 satisfy 91#(and (<= 0 main_~j~0) (= main_~i~0 main_~j~0) (<= 0 main_~i~0) (= main_~x~0 0) (<= main_~i~0 1000000) (<= main_~y~0 2147483647) (<= main_~x~0 1000000) (<= 0 main_~z~0) (<= main_~j~0 1000000) (<= main_~j~0 2147483647) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-07 13:43:27,409 INFO L193 IcfgInterpreter]: Reachable states at location L4 satisfy 101#(and (or (and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) (and (<= 1 __VERIFIER_assert_~cond) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1))) (or (and (= |__VERIFIER_assert_#in~cond| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)))) [2019-10-07 13:43:27,409 INFO L193 IcfgInterpreter]: Reachable states at location L15 satisfy 43#(and (<= main_~i~0 2147483647) (<= 0 main_~i~0) (<= 0 (+ main_~i~0 2147483648)) (<= main_~i~0 1000000) (<= 0 (+ main_~j~0 2147483648)) (<= main_~j~0 2147483647)) [2019-10-07 13:43:27,410 INFO L193 IcfgInterpreter]: Reachable states at location L19-3 satisfy 86#(and (<= 0 main_~j~0) (<= 0 main_~i~0) (= main_~x~0 0) (<= main_~i~0 1000000) (<= main_~y~0 2147483647) (<= main_~x~0 1000000) (<= 0 main_~z~0) (<= main_~j~0 2147483647) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-07 13:43:27,410 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 111#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) [2019-10-07 13:43:27,410 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#true [2019-10-07 13:43:27,411 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#true [2019-10-07 13:43:27,411 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 120#true [2019-10-07 13:43:27,411 INFO L193 IcfgInterpreter]: Reachable states at location L19-2 satisfy 81#(and (<= 0 main_~j~0) (<= 0 main_~i~0) (<= main_~i~0 1000000) (<= main_~y~0 2147483647) (<= main_~x~0 1000000) (<= 0 main_~z~0) (<= main_~j~0 2147483647)) [2019-10-07 13:43:27,411 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 13:43:27,412 INFO L193 IcfgInterpreter]: Reachable states at location L5 satisfy 106#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) [2019-10-07 13:43:27,412 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 96#(and (or (and (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1)) (and (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0))) (or (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| 0))) [2019-10-07 13:43:27,783 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 13:43:27,783 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11, 9] total 33 [2019-10-07 13:43:27,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-10-07 13:43:27,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-10-07 13:43:27,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=896, Unknown=0, NotChecked=0, Total=1056 [2019-10-07 13:43:27,786 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 33 states. [2019-10-07 13:43:28,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:43:28,404 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-10-07 13:43:28,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-07 13:43:28,405 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 17 [2019-10-07 13:43:28,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:43:28,405 INFO L225 Difference]: With dead ends: 21 [2019-10-07 13:43:28,406 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 13:43:28,407 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=332, Invalid=1560, Unknown=0, NotChecked=0, Total=1892 [2019-10-07 13:43:28,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 13:43:28,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 13:43:28,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 13:43:28,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 13:43:28,408 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-10-07 13:43:28,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:43:28,408 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 13:43:28,408 INFO L463 AbstractCegarLoop]: Interpolant automaton has 33 states. [2019-10-07 13:43:28,409 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 13:43:28,410 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 13:43:28,612 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:43:28,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 13:43:28,779 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-07 13:43:28,779 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 13:43:28,779 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 13:43:28,779 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-07 13:43:28,780 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 13:43:28,780 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 13:43:28,780 INFO L439 ceAbstractionStarter]: At program point L25(line 25) the Hoare annotation is: (let ((.cse2 (+ main_~y~0 main_~z~0))) (let ((.cse0 (<= .cse2 0)) (.cse1 (<= 0 .cse2))) (or (and (= main_~i~0 main_~x~0) .cse0 .cse1 (= main_~i~0 0)) (and (= main_~i~0 main_~j~0) (<= 0 main_~i~0) (<= 0 main_~z~0) (<= main_~j~0 1000000) .cse0 .cse1 (<= main_~x~0 0) (<= 0 main_~x~0))))) [2019-10-07 13:43:28,781 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 28) no Hoare annotation was computed. [2019-10-07 13:43:28,782 INFO L439 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: (let ((.cse1 (+ main_~i~0 main_~y~0 main_~z~0)) (.cse0 (+ main_~x~0 main_~j~0))) (and (<= 0 main_~j~0) (<= .cse0 .cse1) (<= 0 main_~i~0) (<= main_~y~0 2147483647) (<= main_~i~0 1000000) (<= 0 main_~z~0) (<= .cse1 .cse0) (<= main_~x~0 1000000) (<= main_~j~0 2147483647))) [2019-10-07 13:43:28,782 INFO L443 ceAbstractionStarter]: For program point L19-3(lines 10 28) no Hoare annotation was computed. [2019-10-07 13:43:28,782 INFO L443 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-10-07 13:43:28,782 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 28) no Hoare annotation was computed. [2019-10-07 13:43:28,782 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 28) the Hoare annotation is: true [2019-10-07 13:43:28,782 INFO L443 ceAbstractionStarter]: For program point L24(lines 24 26) no Hoare annotation was computed. [2019-10-07 13:43:28,782 INFO L443 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-10-07 13:43:28,783 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-07 13:43:28,783 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-07 13:43:28,783 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-07 13:43:28,784 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-07 13:43:28,784 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-07 13:43:28,784 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-07 13:43:28,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 01:43:28 BoogieIcfgContainer [2019-10-07 13:43:28,800 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 13:43:28,802 INFO L168 Benchmark]: Toolchain (without parser) took 6143.11 ms. Allocated memory was 146.8 MB in the beginning and 271.1 MB in the end (delta: 124.3 MB). Free memory was 103.9 MB in the beginning and 111.4 MB in the end (delta: -7.5 MB). Peak memory consumption was 116.8 MB. Max. memory is 7.1 GB. [2019-10-07 13:43:28,803 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 13:43:28,804 INFO L168 Benchmark]: CACSL2BoogieTranslator took 353.71 ms. Allocated memory is still 146.8 MB. Free memory was 103.7 MB in the beginning and 94.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-10-07 13:43:28,805 INFO L168 Benchmark]: Boogie Preprocessor took 139.79 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 94.3 MB in the beginning and 181.8 MB in the end (delta: -87.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-10-07 13:43:28,806 INFO L168 Benchmark]: RCFGBuilder took 253.17 ms. Allocated memory is still 203.4 MB. Free memory was 181.8 MB in the beginning and 169.4 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2019-10-07 13:43:28,807 INFO L168 Benchmark]: TraceAbstraction took 5391.92 ms. Allocated memory was 203.4 MB in the beginning and 271.1 MB in the end (delta: 67.6 MB). Free memory was 168.8 MB in the beginning and 111.4 MB in the end (delta: 57.4 MB). Peak memory consumption was 125.0 MB. Max. memory is 7.1 GB. [2019-10-07 13:43:28,811 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 146.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 353.71 ms. Allocated memory is still 146.8 MB. Free memory was 103.7 MB in the beginning and 94.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 139.79 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 94.3 MB in the beginning and 181.8 MB in the end (delta: -87.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 253.17 ms. Allocated memory is still 203.4 MB. Free memory was 181.8 MB in the beginning and 169.4 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5391.92 ms. Allocated memory was 203.4 MB in the beginning and 271.1 MB in the end (delta: 67.6 MB). Free memory was 168.8 MB in the beginning and 111.4 MB in the end (delta: 57.4 MB). Peak memory consumption was 125.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 19]: Loop Invariant Derived loop invariant: (((((((0 <= j && x + j <= i + y + z) && 0 <= i) && y <= 2147483647) && i <= 1000000) && 0 <= z) && i + y + z <= x + j) && x <= 1000000) && j <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. Result: SAFE, OverallTime: 5.2s, OverallIterations: 3, TraceHistogramMax: 4, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 36 SDtfs, 104 SDslu, 242 SDs, 0 SdLazy, 323 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 55 SyntacticMatches, 3 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 721 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, 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, 7 LocationsWithAnnotation, 11 PreInvPairs, 20 NumberOfFragments, 90 HoareAnnotationTreeSize, 11 FomulaSimplifications, 49 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 300 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 10353 SizeOfPredicates, 14 NumberOfNonLiveVariables, 115 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 1/33 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 639, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 48, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 26, TOOLS_POST_TIME[ms]: 22, TOOLS_POST_CALL_APPLICATIONS: 10, TOOLS_POST_CALL_TIME[ms]: 22, TOOLS_POST_RETURN_APPLICATIONS: 4, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 40, TOOLS_QUANTIFIERELIM_TIME[ms]: 31, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 15, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 54, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 42, DOMAIN_JOIN_TIME[ms]: 362, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME[ms]: 103, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME[ms]: 13, DOMAIN_ISBOTTOM_APPLICATIONS: 2, DOMAIN_ISBOTTOM_TIME[ms]: 3, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 292, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 288, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 4, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 8, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 8, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 18, DAG_COMPRESSION_PROCESSED_NODES: 152, DAG_COMPRESSION_RETAINED_NODES: 94, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...