/usr/bin/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/cggmp2005.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:01:36,010 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:01:36,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:01:36,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:01:36,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:01:36,033 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:01:36,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:01:36,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:01:36,042 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:01:36,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:01:36,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:01:36,048 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:01:36,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:01:36,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:01:36,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:01:36,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:01:36,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:01:36,059 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:01:36,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:01:36,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:01:36,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:01:36,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:01:36,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:01:36,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:01:36,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 04:01:36,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:01:36,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:01:36,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:01:36,091 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 [2019-11-07 04:01:36,109 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:01:36,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:01:36,111 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:01:36,112 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:01:36,112 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:01:36,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:01:36,112 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:01:36,113 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:01:36,113 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:01:36,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:01:36,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:01:36,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:01:36,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:01:36,115 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:01:36,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:01:36,115 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:01:36,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:01:36,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:01:36,116 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:01:36,116 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:01:36,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:01:36,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:01:36,117 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:01:36,117 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:01:36,117 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:01:36,117 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:01:36,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:01:36,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:01:36,118 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 [2019-11-07 04:01:36,448 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:01:36,466 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:01:36,471 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:01:36,472 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:01:36,473 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:01:36,474 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/cggmp2005.i [2019-11-07 04:01:36,533 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f7b195cf/f0987e0c9e7c4dcfb53fa0c100fa7e95/FLAGd854fbea2 [2019-11-07 04:01:36,944 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:01:36,944 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005.i [2019-11-07 04:01:36,950 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f7b195cf/f0987e0c9e7c4dcfb53fa0c100fa7e95/FLAGd854fbea2 [2019-11-07 04:01:37,369 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f7b195cf/f0987e0c9e7c4dcfb53fa0c100fa7e95 [2019-11-07 04:01:37,404 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:01:37,408 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:01:37,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:01:37,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:01:37,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:01:37,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:01:37" (1/1) ... [2019-11-07 04:01:37,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3612e87f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:01:37, skipping insertion in model container [2019-11-07 04:01:37,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:01:37" (1/1) ... [2019-11-07 04:01:37,452 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:01:37,491 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:01:37,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:01:37,792 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:01:37,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:01:37,822 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:01:37,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:01:37 WrapperNode [2019-11-07 04:01:37,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:01:37,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:01:37,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:01:37,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:01:37,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:01:37" (1/1) ... [2019-11-07 04:01:37,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:01:37" (1/1) ... [2019-11-07 04:01:37,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:01:37" (1/1) ... [2019-11-07 04:01:37,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:01:37" (1/1) ... [2019-11-07 04:01:37,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:01:37" (1/1) ... [2019-11-07 04:01:37,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:01:37" (1/1) ... [2019-11-07 04:01:37,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:01:37" (1/1) ... [2019-11-07 04:01:37,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:01:37,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:01:37,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:01:37,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:01:37,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:01:37" (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 [2019-11-07 04:01:38,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:01:38,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:01:38,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-07 04:01:38,009 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:01:38,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:01:38,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-07 04:01:38,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 04:01:38,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:01:38,010 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:01:38,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:01:38,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:01:38,171 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:01:38,172 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 04:01:38,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:01:38 BoogieIcfgContainer [2019-11-07 04:01:38,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:01:38,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:01:38,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:01:38,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:01:38,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:01:37" (1/3) ... [2019-11-07 04:01:38,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1360dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:01:38, skipping insertion in model container [2019-11-07 04:01:38,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:01:37" (2/3) ... [2019-11-07 04:01:38,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1360dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:01:38, skipping insertion in model container [2019-11-07 04:01:38,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:01:38" (3/3) ... [2019-11-07 04:01:38,181 INFO L109 eAbstractionObserver]: Analyzing ICFG cggmp2005.i [2019-11-07 04:01:38,191 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:01:38,199 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:01:38,211 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:01:38,242 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:01:38,242 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:01:38,242 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:01:38,242 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:01:38,242 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:01:38,243 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:01:38,247 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:01:38,247 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:01:38,281 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-11-07 04:01:38,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-07 04:01:38,294 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:01:38,295 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:01:38,297 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:01:38,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:01:38,313 INFO L82 PathProgramCache]: Analyzing trace with hash 9943896, now seen corresponding path program 1 times [2019-11-07 04:01:38,347 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:01:38,348 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029320051] [2019-11-07 04:01:38,348 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:01:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:01:38,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:01:38,507 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029320051] [2019-11-07 04:01:38,508 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:01:38,508 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:01:38,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76361481] [2019-11-07 04:01:38,514 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:01:38,515 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:01:38,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:01:38,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:01:38,533 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2019-11-07 04:01:38,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:01:38,568 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2019-11-07 04:01:38,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:01:38,570 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-07 04:01:38,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:01:38,578 INFO L225 Difference]: With dead ends: 29 [2019-11-07 04:01:38,579 INFO L226 Difference]: Without dead ends: 12 [2019-11-07 04:01:38,582 INFO L630 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 [2019-11-07 04:01:38,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-07 04:01:38,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-07 04:01:38,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-07 04:01:38,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-11-07 04:01:38,619 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2019-11-07 04:01:38,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:01:38,620 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-11-07 04:01:38,620 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:01:38,620 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-11-07 04:01:38,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-07 04:01:38,621 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:01:38,621 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:01:38,621 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:01:38,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:01:38,622 INFO L82 PathProgramCache]: Analyzing trace with hash -404253491, now seen corresponding path program 1 times [2019-11-07 04:01:38,622 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:01:38,623 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991579454] [2019-11-07 04:01:38,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:01:38,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:01:38,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:01:38,672 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991579454] [2019-11-07 04:01:38,673 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267276530] [2019-11-07 04:01:38,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:01:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:01:38,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-07 04:01:38,712 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:01:38,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:01:38,771 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:01:38,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:01:38,804 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [151643486] [2019-11-07 04:01:38,826 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-11-07 04:01:38,826 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:01:38,833 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:01:38,840 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:01:38,841 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 04:01:38,896 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-11-07 04:01:39,002 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-11-07 04:01:39,012 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 1 for LOIs [2019-11-07 04:01:39,015 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-07 04:01:39,134 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-11-07 04:01:39,134 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 6] total 13 [2019-11-07 04:01:39,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245223328] [2019-11-07 04:01:39,137 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-07 04:01:39,137 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:01:39,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-07 04:01:39,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2019-11-07 04:01:39,138 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 13 states. [2019-11-07 04:01:39,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:01:39,278 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2019-11-07 04:01:39,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-07 04:01:39,279 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 11 [2019-11-07 04:01:39,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:01:39,280 INFO L225 Difference]: With dead ends: 20 [2019-11-07 04:01:39,280 INFO L226 Difference]: Without dead ends: 15 [2019-11-07 04:01:39,282 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2019-11-07 04:01:39,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-11-07 04:01:39,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-07 04:01:39,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-07 04:01:39,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-11-07 04:01:39,293 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2019-11-07 04:01:39,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:01:39,294 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-11-07 04:01:39,294 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-07 04:01:39,295 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-11-07 04:01:39,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-07 04:01:39,296 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:01:39,298 INFO L410 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:01:39,502 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:01:39,503 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:01:39,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:01:39,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1115484312, now seen corresponding path program 2 times [2019-11-07 04:01:39,504 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:01:39,505 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212669521] [2019-11-07 04:01:39,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:01:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:01:39,657 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:01:39,657 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212669521] [2019-11-07 04:01:39,657 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819816271] [2019-11-07 04:01:39,658 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:01:39,704 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-11-07 04:01:39,704 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-07 04:01:39,705 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-07 04:01:39,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:01:39,757 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:01:39,757 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:01:39,779 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:01:39,783 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [18144737] [2019-11-07 04:01:39,784 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-11-07 04:01:39,786 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:01:39,787 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:01:39,788 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:01:39,788 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 04:01:39,803 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-11-07 04:01:39,884 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-11-07 04:01:39,891 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 1 for LOIs [2019-11-07 04:01:39,892 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-07 04:01:40,107 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-11-07 04:01:40,107 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 6] total 16 [2019-11-07 04:01:40,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474445779] [2019-11-07 04:01:40,108 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-07 04:01:40,109 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:01:40,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-07 04:01:40,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2019-11-07 04:01:40,110 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 16 states. [2019-11-07 04:01:40,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:01:40,352 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2019-11-07 04:01:40,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-07 04:01:40,356 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 14 [2019-11-07 04:01:40,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:01:40,357 INFO L225 Difference]: With dead ends: 21 [2019-11-07 04:01:40,358 INFO L226 Difference]: Without dead ends: 16 [2019-11-07 04:01:40,358 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2019-11-07 04:01:40,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-07 04:01:40,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-07 04:01:40,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-07 04:01:40,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-11-07 04:01:40,365 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2019-11-07 04:01:40,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:01:40,365 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-11-07 04:01:40,365 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-07 04:01:40,365 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-11-07 04:01:40,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-07 04:01:40,366 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:01:40,366 INFO L410 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:01:40,567 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:01:40,567 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:01:40,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:01:40,568 INFO L82 PathProgramCache]: Analyzing trace with hash -492238963, now seen corresponding path program 3 times [2019-11-07 04:01:40,568 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:01:40,568 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273727647] [2019-11-07 04:01:40,568 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:01:40,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:01:40,639 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:01:40,639 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273727647] [2019-11-07 04:01:40,639 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:01:40,639 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 04:01:40,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481788949] [2019-11-07 04:01:40,640 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:01:40,640 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:01:40,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:01:40,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:01:40,641 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 7 states. [2019-11-07 04:01:40,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:01:40,652 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2019-11-07 04:01:40,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 04:01:40,652 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-11-07 04:01:40,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:01:40,653 INFO L225 Difference]: With dead ends: 16 [2019-11-07 04:01:40,653 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 04:01:40,654 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:01:40,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 04:01:40,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 04:01:40,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 04:01:40,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 04:01:40,655 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-07 04:01:40,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:01:40,655 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 04:01:40,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:01:40,655 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 04:01:40,655 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 04:01:40,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 04:01:40,766 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-11-07 04:01:40,766 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 04:01:40,766 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 04:01:40,767 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-07 04:01:40,767 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 04:01:40,767 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 04:01:40,767 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 20) the Hoare annotation is: true [2019-11-07 04:01:40,767 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 20) no Hoare annotation was computed. [2019-11-07 04:01:40,767 INFO L443 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2019-11-07 04:01:40,768 INFO L439 ceAbstractionStarter]: At program point L14-2(lines 14 17) the Hoare annotation is: (or (and (<= main_~j~0 (+ main_~i~0 9)) (<= main_~i~0 1) (<= 10 main_~j~0)) (and (<= 6 main_~j~0) (<= (+ main_~j~0 3) main_~i~0) (<= main_~j~0 6)) (and (<= main_~i~0 3) (<= main_~j~0 (+ main_~i~0 6)) (<= 9 main_~j~0)) (and (<= 7 main_~j~0) (<= main_~j~0 main_~i~0) (<= main_~j~0 7) (<= main_~i~0 main_~j~0)) (and (<= 8 main_~j~0) (<= main_~j~0 8) (<= main_~j~0 (+ main_~i~0 3)) (< (+ main_~i~0 2) main_~j~0))) [2019-11-07 04:01:40,768 INFO L439 ceAbstractionStarter]: At program point L14-3(lines 14 17) the Hoare annotation is: (and (<= 6 main_~j~0) (< main_~j~0 main_~i~0) (<= main_~j~0 6)) [2019-11-07 04:01:40,768 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-07 04:01:40,768 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-11-07 04:01:40,768 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-11-07 04:01:40,769 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-07 04:01:40,769 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-07 04:01:40,769 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-11-07 04:01:40,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:01:40 BoogieIcfgContainer [2019-11-07 04:01:40,787 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 04:01:40,789 INFO L168 Benchmark]: Toolchain (without parser) took 3382.64 ms. Allocated memory was 145.2 MB in the beginning and 235.4 MB in the end (delta: 90.2 MB). Free memory was 103.4 MB in the beginning and 114.5 MB in the end (delta: -11.1 MB). Peak memory consumption was 79.1 MB. Max. memory is 7.1 GB. [2019-11-07 04:01:40,790 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 04:01:40,791 INFO L168 Benchmark]: CACSL2BoogieTranslator took 409.38 ms. Allocated memory is still 145.2 MB. Free memory was 103.2 MB in the beginning and 94.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-11-07 04:01:40,793 INFO L168 Benchmark]: Boogie Preprocessor took 126.01 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 94.0 MB in the beginning and 180.5 MB in the end (delta: -86.5 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-11-07 04:01:40,793 INFO L168 Benchmark]: RCFGBuilder took 223.64 ms. Allocated memory is still 202.4 MB. Free memory was 180.5 MB in the beginning and 169.3 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2019-11-07 04:01:40,795 INFO L168 Benchmark]: TraceAbstraction took 2612.44 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 169.3 MB in the beginning and 114.5 MB in the end (delta: 54.8 MB). Peak memory consumption was 87.8 MB. Max. memory is 7.1 GB. [2019-11-07 04:01:40,799 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 409.38 ms. Allocated memory is still 145.2 MB. Free memory was 103.2 MB in the beginning and 94.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.01 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 94.0 MB in the beginning and 180.5 MB in the end (delta: -86.5 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 223.64 ms. Allocated memory is still 202.4 MB. Free memory was 180.5 MB in the beginning and 169.3 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2612.44 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 169.3 MB in the beginning and 114.5 MB in the end (delta: 54.8 MB). Peak memory consumption was 87.8 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: 14]: Loop Invariant Derived loop invariant: (((((j <= i + 9 && i <= 1) && 10 <= j) || ((6 <= j && j + 3 <= i) && j <= 6)) || ((i <= 3 && j <= i + 6) && 9 <= j)) || (((7 <= j && j <= i) && j <= 7) && i <= j)) || (((8 <= j && j <= 8) && j <= i + 3) && i + 2 < j) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 5, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 35 SDtfs, 16 SDslu, 100 SDs, 0 SdLazy, 117 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 16 NumberOfFragments, 82 HoareAnnotationTreeSize, 10 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 44 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 3244 SizeOfPredicates, 4 NumberOfNonLiveVariables, 73 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 15/48 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 297, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 20, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 20, TOOLS_POST_TIME[ms]: 16, TOOLS_POST_CALL_APPLICATIONS: 10, TOOLS_POST_CALL_TIME[ms]: 13, TOOLS_POST_RETURN_APPLICATIONS: 4, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 34, TOOLS_QUANTIFIERELIM_TIME[ms]: 21, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 7, FLUID_QUERY_TIME[ms]: 7, FLUID_QUERIES: 78, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 4, DOMAIN_JOIN_TIME[ms]: 18, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME[ms]: 108, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME[ms]: 23, DOMAIN_ISBOTTOM_APPLICATIONS: 20, DOMAIN_ISBOTTOM_TIME[ms]: 37, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 151, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 151, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 4, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 4, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 3, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 16, DAG_COMPRESSION_PROCESSED_NODES: 116, DAG_COMPRESSION_RETAINED_NODES: 86, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...