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/eca-rers2012/Problem01_label28.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:39:54,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:39:54,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:39:54,139 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-15 01:39:54,165 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:39:54,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:39:54,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:39:54,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:39:54,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:39:54,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:39:54,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:39:54,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:39:54,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:39:54,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:39:54,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:39:54,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:39:54,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 01:39:54,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:39:54,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:39:54,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:39:54,201 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 [2019-10-15 01:39:54,215 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:39:54,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:39:54,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:39:54,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:39:54,217 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:39:54,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:39:54,218 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:39:54,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:39:54,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:39:54,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:39:54,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:39:54,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:39:54,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:39:54,219 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:39:54,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:39:54,220 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:39:54,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:39:54,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:39:54,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:39:54,221 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:39:54,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:39:54,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:39:54,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:39:54,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:39:54,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:39:54,222 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:39:54,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:39:54,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:39:54,222 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 [2019-10-15 01:39:54,525 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:39:54,539 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:39:54,543 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:39:54,545 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:39:54,545 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:39:54,546 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label28.c [2019-10-15 01:39:54,609 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c19b7f0d3/55d595a6d0ce4583b6d5f4e020821e42/FLAGbdf830e7c [2019-10-15 01:39:55,172 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:39:55,173 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label28.c [2019-10-15 01:39:55,188 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c19b7f0d3/55d595a6d0ce4583b6d5f4e020821e42/FLAGbdf830e7c [2019-10-15 01:39:55,421 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c19b7f0d3/55d595a6d0ce4583b6d5f4e020821e42 [2019-10-15 01:39:55,433 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:39:55,435 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:39:55,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:39:55,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:39:55,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:39:55,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:39:55" (1/1) ... [2019-10-15 01:39:55,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b2e6592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:39:55, skipping insertion in model container [2019-10-15 01:39:55,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:39:55" (1/1) ... [2019-10-15 01:39:55,456 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:39:55,518 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:39:56,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:39:56,104 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:39:56,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:39:56,244 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:39:56,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:39:56 WrapperNode [2019-10-15 01:39:56,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:39:56,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:39:56,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:39:56,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:39:56,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:39:56" (1/1) ... [2019-10-15 01:39:56,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:39:56" (1/1) ... [2019-10-15 01:39:56,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:39:56" (1/1) ... [2019-10-15 01:39:56,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:39:56" (1/1) ... [2019-10-15 01:39:56,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:39:56" (1/1) ... [2019-10-15 01:39:56,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:39:56" (1/1) ... [2019-10-15 01:39:56,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:39:56" (1/1) ... [2019-10-15 01:39:56,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:39:56,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:39:56,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:39:56,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:39:56,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:39:56" (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 [2019-10-15 01:39:56,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:39:56,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:39:56,432 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-15 01:39:56,432 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:39:56,432 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-15 01:39:56,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:39:56,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:39:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:39:56,434 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:39:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:39:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:39:58,442 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:39:58,443 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 01:39:58,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:39:58 BoogieIcfgContainer [2019-10-15 01:39:58,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:39:58,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:39:58,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:39:58,449 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:39:58,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:39:55" (1/3) ... [2019-10-15 01:39:58,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@668ecdff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:39:58, skipping insertion in model container [2019-10-15 01:39:58,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:39:56" (2/3) ... [2019-10-15 01:39:58,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@668ecdff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:39:58, skipping insertion in model container [2019-10-15 01:39:58,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:39:58" (3/3) ... [2019-10-15 01:39:58,454 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label28.c [2019-10-15 01:39:58,493 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:39:58,502 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:39:58,514 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:39:58,540 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:39:58,541 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:39:58,541 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:39:58,541 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:39:58,541 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:39:58,542 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:39:58,542 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:39:58,542 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:39:58,564 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2019-10-15 01:39:58,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-15 01:39:58,574 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:39:58,575 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:39:58,577 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:39:58,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:39:58,583 INFO L82 PathProgramCache]: Analyzing trace with hash 826816612, now seen corresponding path program 1 times [2019-10-15 01:39:58,593 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:39:58,593 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077963801] [2019-10-15 01:39:58,593 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:39:58,594 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:39:58,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:39:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:39:59,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:39:59,079 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077963801] [2019-10-15 01:39:59,080 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:39:59,081 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:39:59,081 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028702297] [2019-10-15 01:39:59,087 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:39:59,088 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:39:59,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:39:59,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:39:59,106 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 4 states. [2019-10-15 01:39:59,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:39:59,968 INFO L93 Difference]: Finished difference Result 325 states and 606 transitions. [2019-10-15 01:39:59,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:39:59,971 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 77 [2019-10-15 01:39:59,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:39:59,999 INFO L225 Difference]: With dead ends: 325 [2019-10-15 01:40:00,000 INFO L226 Difference]: Without dead ends: 232 [2019-10-15 01:40:00,006 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:40:00,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2019-10-15 01:40:00,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 157. [2019-10-15 01:40:00,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-10-15 01:40:00,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 279 transitions. [2019-10-15 01:40:00,104 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 279 transitions. Word has length 77 [2019-10-15 01:40:00,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:40:00,133 INFO L462 AbstractCegarLoop]: Abstraction has 157 states and 279 transitions. [2019-10-15 01:40:00,134 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:40:00,135 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 279 transitions. [2019-10-15 01:40:00,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-10-15 01:40:00,142 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:40:00,142 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:40:00,143 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:40:00,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:40:00,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1195670021, now seen corresponding path program 1 times [2019-10-15 01:40:00,145 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:40:00,145 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822313228] [2019-10-15 01:40:00,146 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:00,146 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:00,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:40:00,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:00,314 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:40:00,314 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822313228] [2019-10-15 01:40:00,315 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:40:00,315 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:40:00,315 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391809562] [2019-10-15 01:40:00,318 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:40:00,318 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:40:00,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:40:00,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:40:00,319 INFO L87 Difference]: Start difference. First operand 157 states and 279 transitions. Second operand 6 states. [2019-10-15 01:40:00,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:40:00,856 INFO L93 Difference]: Finished difference Result 479 states and 882 transitions. [2019-10-15 01:40:00,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:40:00,857 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2019-10-15 01:40:00,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:40:00,861 INFO L225 Difference]: With dead ends: 479 [2019-10-15 01:40:00,861 INFO L226 Difference]: Without dead ends: 327 [2019-10-15 01:40:00,863 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:40:00,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2019-10-15 01:40:00,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 315. [2019-10-15 01:40:00,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2019-10-15 01:40:00,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 557 transitions. [2019-10-15 01:40:00,903 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 557 transitions. Word has length 87 [2019-10-15 01:40:00,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:40:00,903 INFO L462 AbstractCegarLoop]: Abstraction has 315 states and 557 transitions. [2019-10-15 01:40:00,903 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:40:00,904 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 557 transitions. [2019-10-15 01:40:00,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-10-15 01:40:00,908 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:40:00,908 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:40:00,908 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:40:00,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:40:00,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1641052353, now seen corresponding path program 1 times [2019-10-15 01:40:00,909 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:40:00,909 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663287762] [2019-10-15 01:40:00,909 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:00,910 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:00,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:40:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:01,063 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:40:01,064 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663287762] [2019-10-15 01:40:01,064 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:40:01,064 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:40:01,064 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270092378] [2019-10-15 01:40:01,065 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:40:01,065 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:40:01,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:40:01,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:40:01,066 INFO L87 Difference]: Start difference. First operand 315 states and 557 transitions. Second operand 6 states. [2019-10-15 01:40:01,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:40:01,691 INFO L93 Difference]: Finished difference Result 876 states and 1599 transitions. [2019-10-15 01:40:01,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:40:01,697 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 100 [2019-10-15 01:40:01,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:40:01,705 INFO L225 Difference]: With dead ends: 876 [2019-10-15 01:40:01,706 INFO L226 Difference]: Without dead ends: 566 [2019-10-15 01:40:01,712 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:40:01,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2019-10-15 01:40:01,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 556. [2019-10-15 01:40:01,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2019-10-15 01:40:01,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 966 transitions. [2019-10-15 01:40:01,790 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 966 transitions. Word has length 100 [2019-10-15 01:40:01,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:40:01,791 INFO L462 AbstractCegarLoop]: Abstraction has 556 states and 966 transitions. [2019-10-15 01:40:01,791 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:40:01,791 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 966 transitions. [2019-10-15 01:40:01,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-10-15 01:40:01,802 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:40:01,803 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:40:01,803 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:40:01,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:40:01,804 INFO L82 PathProgramCache]: Analyzing trace with hash -498204692, now seen corresponding path program 1 times [2019-10-15 01:40:01,804 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:40:01,804 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250760495] [2019-10-15 01:40:01,804 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:01,805 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:01,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:40:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:01,932 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:40:01,933 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250760495] [2019-10-15 01:40:01,934 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969820704] [2019-10-15 01:40:01,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:40:02,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:02,060 INFO L256 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 01:40:02,070 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:40:02,143 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-15 01:40:02,143 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:40:02,205 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-15 01:40:02,206 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:40:02,206 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 8 [2019-10-15 01:40:02,207 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265840366] [2019-10-15 01:40:02,232 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:40:02,232 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:40:02,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:40:02,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:40:02,233 INFO L87 Difference]: Start difference. First operand 556 states and 966 transitions. Second operand 4 states. [2019-10-15 01:40:02,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:40:02,841 INFO L93 Difference]: Finished difference Result 1182 states and 2070 transitions. [2019-10-15 01:40:02,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:40:02,841 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2019-10-15 01:40:02,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:40:02,843 INFO L225 Difference]: With dead ends: 1182 [2019-10-15 01:40:02,843 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:40:02,846 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:40:02,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:40:02,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:40:02,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:40:02,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:40:02,847 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 111 [2019-10-15 01:40:02,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:40:02,848 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:40:02,848 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:40:02,848 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:40:02,848 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:40:03,050 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:40:03,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:40:03,383 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 33 [2019-10-15 01:40:03,465 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|)) [2019-10-15 01:40:03,466 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:40:03,466 INFO L443 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-10-15 01:40:03,466 INFO L443 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-10-15 01:40:03,466 INFO L443 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-10-15 01:40:03,467 INFO L443 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-10-15 01:40:03,467 INFO L443 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-10-15 01:40:03,467 INFO L443 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-10-15 01:40:03,467 INFO L443 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-10-15 01:40:03,467 INFO L443 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-10-15 01:40:03,468 INFO L443 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-10-15 01:40:03,468 INFO L443 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-10-15 01:40:03,468 INFO L443 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-10-15 01:40:03,468 INFO L443 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-10-15 01:40:03,472 INFO L443 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-10-15 01:40:03,472 INFO L443 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-10-15 01:40:03,473 INFO L443 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-10-15 01:40:03,473 INFO L443 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-10-15 01:40:03,473 INFO L443 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-10-15 01:40:03,473 INFO L443 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-10-15 01:40:03,473 INFO L443 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-10-15 01:40:03,473 INFO L443 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-10-15 01:40:03,474 INFO L443 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-10-15 01:40:03,474 INFO L443 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-10-15 01:40:03,474 INFO L443 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-10-15 01:40:03,474 INFO L443 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-10-15 01:40:03,474 INFO L443 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-10-15 01:40:03,474 INFO L443 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-10-15 01:40:03,474 INFO L443 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-10-15 01:40:03,475 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-10-15 01:40:03,475 INFO L443 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-10-15 01:40:03,475 INFO L443 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2019-10-15 01:40:03,475 INFO L443 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2019-10-15 01:40:03,476 INFO L443 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-10-15 01:40:03,476 INFO L443 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-10-15 01:40:03,476 INFO L443 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-10-15 01:40:03,476 INFO L443 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-10-15 01:40:03,476 INFO L443 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-10-15 01:40:03,476 INFO L443 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-10-15 01:40:03,477 INFO L443 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-10-15 01:40:03,477 INFO L443 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-10-15 01:40:03,477 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-10-15 01:40:03,477 INFO L443 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2019-10-15 01:40:03,477 INFO L443 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-10-15 01:40:03,477 INFO L443 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-10-15 01:40:03,477 INFO L443 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-10-15 01:40:03,477 INFO L443 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2019-10-15 01:40:03,478 INFO L443 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-10-15 01:40:03,478 INFO L443 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-10-15 01:40:03,478 INFO L443 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-10-15 01:40:03,479 INFO L443 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-10-15 01:40:03,479 INFO L443 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2019-10-15 01:40:03,479 INFO L443 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-10-15 01:40:03,479 INFO L443 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 455) no Hoare annotation was computed. [2019-10-15 01:40:03,479 INFO L439 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse1 (= ~a16~0 |old(~a16~0)|)) (.cse2 (= ~a8~0 |old(~a8~0)|))) (let ((.cse0 (and .cse1 .cse2))) (and (or (not (<= |old(~a8~0)| 13)) .cse0) (or (= 6 |old(~a16~0)|) (not (< |old(~a8~0)| 15)) .cse0) (or (and (= |old(~a7~0)| |old(~a20~0)|) (= 1 |old(~a20~0)|)) (and .cse1 .cse2 (or (not (= 1 ~a7~0)) (not (= ~a20~0 ~a7~0)))))))) [2019-10-15 01:40:03,480 INFO L443 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-10-15 01:40:03,480 INFO L443 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-10-15 01:40:03,480 INFO L443 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-10-15 01:40:03,480 INFO L443 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-10-15 01:40:03,480 INFO L443 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-10-15 01:40:03,480 INFO L443 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-10-15 01:40:03,481 INFO L443 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-10-15 01:40:03,481 INFO L443 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-10-15 01:40:03,481 INFO L443 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-10-15 01:40:03,481 INFO L443 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-10-15 01:40:03,481 INFO L443 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-10-15 01:40:03,481 INFO L443 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-10-15 01:40:03,481 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-10-15 01:40:03,481 INFO L443 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-10-15 01:40:03,482 INFO L443 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-10-15 01:40:03,482 INFO L443 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-10-15 01:40:03,482 INFO L443 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-10-15 01:40:03,482 INFO L443 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-10-15 01:40:03,482 INFO L443 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-10-15 01:40:03,482 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-10-15 01:40:03,482 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:40:03,483 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (not (= ~a16~0 6)) (not (= ~a20~0 ~a7~0)) (not (= ~a8~0 13))) [2019-10-15 01:40:03,483 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:40:03,483 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:40:03,483 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (= 6 |old(~a16~0)|) (= 13 |old(~a8~0)|) (= |old(~a7~0)| |old(~a20~0)|) (and (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (not (= ~a20~0 ~a7~0)))) [2019-10-15 01:40:03,483 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2019-10-15 01:40:03,484 INFO L439 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (or (<= ~a8~0 13) (= 6 |old(~a16~0)|) (or (not (= 1 ~a7~0)) (not (= ~a20~0 ~a7~0))) (= 13 |old(~a8~0)|) (= |old(~a7~0)| |old(~a20~0)|) (and (< ~a8~0 15) (not (= ~a16~0 6)))) [2019-10-15 01:40:03,484 INFO L443 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2019-10-15 01:40:03,484 INFO L443 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2019-10-15 01:40:03,484 INFO L439 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (or (<= ~a8~0 13) (= 6 |old(~a16~0)|) (or (not (= 1 ~a7~0)) (not (= ~a20~0 ~a7~0))) (= 13 |old(~a8~0)|) (= |old(~a7~0)| |old(~a20~0)|) (and (< ~a8~0 15) (not (= ~a16~0 6)))) [2019-10-15 01:40:03,484 INFO L443 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2019-10-15 01:40:03,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:40:03 BoogieIcfgContainer [2019-10-15 01:40:03,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:40:03,503 INFO L168 Benchmark]: Toolchain (without parser) took 8067.96 ms. Allocated memory was 143.1 MB in the beginning and 303.6 MB in the end (delta: 160.4 MB). Free memory was 97.7 MB in the beginning and 120.2 MB in the end (delta: -22.5 MB). Peak memory consumption was 137.9 MB. Max. memory is 7.1 GB. [2019-10-15 01:40:03,504 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 143.1 MB. Free memory was 118.1 MB in the beginning and 117.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 01:40:03,505 INFO L168 Benchmark]: CACSL2BoogieTranslator took 806.73 ms. Allocated memory was 143.1 MB in the beginning and 203.9 MB in the end (delta: 60.8 MB). Free memory was 97.5 MB in the beginning and 169.9 MB in the end (delta: -72.4 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:40:03,506 INFO L168 Benchmark]: Boogie Preprocessor took 119.90 ms. Allocated memory is still 203.9 MB. Free memory was 169.9 MB in the beginning and 164.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2019-10-15 01:40:03,507 INFO L168 Benchmark]: RCFGBuilder took 2078.98 ms. Allocated memory was 203.9 MB in the beginning and 232.8 MB in the end (delta: 28.8 MB). Free memory was 164.7 MB in the beginning and 79.0 MB in the end (delta: 85.8 MB). Peak memory consumption was 114.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:40:03,508 INFO L168 Benchmark]: TraceAbstraction took 5054.99 ms. Allocated memory was 232.8 MB in the beginning and 303.6 MB in the end (delta: 70.8 MB). Free memory was 79.0 MB in the beginning and 120.2 MB in the end (delta: -41.2 MB). Peak memory consumption was 29.5 MB. Max. memory is 7.1 GB. [2019-10-15 01:40:03,513 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 143.1 MB. Free memory was 118.1 MB in the beginning and 117.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 806.73 ms. Allocated memory was 143.1 MB in the beginning and 203.9 MB in the end (delta: 60.8 MB). Free memory was 97.5 MB in the beginning and 169.9 MB in the end (delta: -72.4 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.90 ms. Allocated memory is still 203.9 MB. Free memory was 169.9 MB in the beginning and 164.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2078.98 ms. Allocated memory was 203.9 MB in the beginning and 232.8 MB in the end (delta: 28.8 MB). Free memory was 164.7 MB in the beginning and 79.0 MB in the end (delta: 85.8 MB). Peak memory consumption was 114.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5054.99 ms. Allocated memory was 232.8 MB in the beginning and 303.6 MB in the end (delta: 70.8 MB). Free memory was 79.0 MB in the beginning and 120.2 MB in the end (delta: -41.2 MB). Peak memory consumption was 29.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 455]: 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: 583]: Loop Invariant Derived loop invariant: ((((a8 <= 13 || 6 == \old(a16)) || !(1 == a7) || !(a20 == a7)) || 13 == \old(a8)) || \old(a7) == \old(a20)) || (a8 < 15 && !(a16 == 6)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 86 locations, 1 error locations. Result: SAFE, OverallTime: 4.9s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, HoareTripleCheckerStatistics: 212 SDtfs, 703 SDslu, 122 SDs, 0 SdLazy, 1524 SolverSat, 414 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 253 GetRequests, 230 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=556occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 97 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 28 PreInvPairs, 44 NumberOfFragments, 154 HoareAnnotationTreeSize, 28 FomulaSimplifications, 598 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 267 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 486 NumberOfCodeBlocks, 486 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 591 ConstructedInterpolants, 0 QuantifiedInterpolants, 162019 SizeOfPredicates, 3 NumberOfNonLiveVariables, 417 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 142/144 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...