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/Problem02_label24.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:41:51,587 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:41:51,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:41:51,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-15 01:41:51,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:41:51,636 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:41:51,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:41:51,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:41:51,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:41:51,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:41:51,646 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:41:51,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:41:51,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:41:51,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:41:51,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:41:51,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:41:51,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 01:41:51,676 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:41:51,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:41:51,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:41:51,680 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 01:41:51,699 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:41:51,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:41:51,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:41:51,702 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:41:51,702 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:41:51,702 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:41:51,703 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:41:51,703 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:41:51,703 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:41:51,703 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:41:51,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:41:51,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:41:51,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:41:51,705 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:41:51,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:41:51,706 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:41:51,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:41:51,706 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:41:51,707 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:41:51,707 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:41:51,707 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:41:51,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:41:51,707 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:41:51,708 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:41:51,708 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:41:51,708 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:41:51,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:41:51,708 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:41:51,709 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 01:41:51,995 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:41:52,009 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:41:52,012 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:41:52,014 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:41:52,014 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:41:52,015 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label24.c [2019-10-15 01:41:52,073 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04651d410/57202c8fec4e4aac8875fa3f4907ecd3/FLAGf16fac2a5 [2019-10-15 01:41:52,633 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:41:52,634 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label24.c [2019-10-15 01:41:52,646 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04651d410/57202c8fec4e4aac8875fa3f4907ecd3/FLAGf16fac2a5 [2019-10-15 01:41:52,951 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04651d410/57202c8fec4e4aac8875fa3f4907ecd3 [2019-10-15 01:41:52,961 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:41:52,963 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:41:52,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:41:52,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:41:52,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:41:52,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:41:52" (1/1) ... [2019-10-15 01:41:52,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dfa82b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:41:52, skipping insertion in model container [2019-10-15 01:41:52,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:41:52" (1/1) ... [2019-10-15 01:41:52,979 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:41:53,026 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:41:53,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:41:53,547 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:41:53,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:41:53,673 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:41:53,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:41:53 WrapperNode [2019-10-15 01:41:53,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:41:53,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:41:53,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:41:53,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:41:53,686 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:41:53" (1/1) ... [2019-10-15 01:41:53,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:41:53" (1/1) ... [2019-10-15 01:41:53,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:41:53" (1/1) ... [2019-10-15 01:41:53,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:41:53" (1/1) ... [2019-10-15 01:41:53,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:41:53" (1/1) ... [2019-10-15 01:41:53,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:41:53" (1/1) ... [2019-10-15 01:41:53,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:41:53" (1/1) ... [2019-10-15 01:41:53,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:41:53,769 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:41:53,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:41:53,769 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:41:53,770 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:41:53" (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 01:41:53,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:41:53,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:41:53,823 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-15 01:41:53,823 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:41:53,823 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-15 01:41:53,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:41:53,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:41:53,824 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:41:53,824 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:41:53,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:41:53,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:41:55,792 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:41:55,793 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 01:41:55,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:41:55 BoogieIcfgContainer [2019-10-15 01:41:55,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:41:55,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:41:55,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:41:55,799 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:41:55,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:41:52" (1/3) ... [2019-10-15 01:41:55,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa33030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:41:55, skipping insertion in model container [2019-10-15 01:41:55,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:41:53" (2/3) ... [2019-10-15 01:41:55,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa33030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:41:55, skipping insertion in model container [2019-10-15 01:41:55,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:41:55" (3/3) ... [2019-10-15 01:41:55,803 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label24.c [2019-10-15 01:41:55,813 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:41:55,822 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:41:55,833 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:41:55,859 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:41:55,860 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:41:55,860 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:41:55,860 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:41:55,860 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:41:55,861 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:41:55,861 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:41:55,861 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:41:55,882 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2019-10-15 01:41:55,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-10-15 01:41:55,892 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:41:55,893 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:41:55,895 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:41:55,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:41:55,901 INFO L82 PathProgramCache]: Analyzing trace with hash -219361993, now seen corresponding path program 1 times [2019-10-15 01:41:55,910 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:41:55,911 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296442403] [2019-10-15 01:41:55,911 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:41:55,911 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:41:55,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:41:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:41:56,386 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 01:41:56,387 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296442403] [2019-10-15 01:41:56,388 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:41:56,389 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:41:56,390 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678025753] [2019-10-15 01:41:56,399 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:41:56,399 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:41:56,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:41:56,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:41:56,417 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 3 states. [2019-10-15 01:41:56,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:41:57,000 INFO L93 Difference]: Finished difference Result 273 states and 508 transitions. [2019-10-15 01:41:57,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:41:57,002 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2019-10-15 01:41:57,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:41:57,026 INFO L225 Difference]: With dead ends: 273 [2019-10-15 01:41:57,026 INFO L226 Difference]: Without dead ends: 175 [2019-10-15 01:41:57,033 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:41:57,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2019-10-15 01:41:57,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2019-10-15 01:41:57,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2019-10-15 01:41:57,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 312 transitions. [2019-10-15 01:41:57,148 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 312 transitions. Word has length 86 [2019-10-15 01:41:57,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:41:57,150 INFO L462 AbstractCegarLoop]: Abstraction has 175 states and 312 transitions. [2019-10-15 01:41:57,151 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:41:57,151 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 312 transitions. [2019-10-15 01:41:57,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-15 01:41:57,166 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:41:57,167 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:41:57,167 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:41:57,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:41:57,169 INFO L82 PathProgramCache]: Analyzing trace with hash -701896772, now seen corresponding path program 1 times [2019-10-15 01:41:57,170 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:41:57,170 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005642008] [2019-10-15 01:41:57,171 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:41:57,171 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:41:57,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:41:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:41:57,381 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:41:57,381 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005642008] [2019-10-15 01:41:57,381 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:41:57,382 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:41:57,382 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950455401] [2019-10-15 01:41:57,384 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:41:57,384 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:41:57,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:41:57,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:41:57,385 INFO L87 Difference]: Start difference. First operand 175 states and 312 transitions. Second operand 3 states. [2019-10-15 01:41:57,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:41:57,823 INFO L93 Difference]: Finished difference Result 513 states and 937 transitions. [2019-10-15 01:41:57,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:41:57,823 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2019-10-15 01:41:57,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:41:57,828 INFO L225 Difference]: With dead ends: 513 [2019-10-15 01:41:57,828 INFO L226 Difference]: Without dead ends: 343 [2019-10-15 01:41:57,830 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:41:57,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2019-10-15 01:41:57,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2019-10-15 01:41:57,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2019-10-15 01:41:57,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 515 transitions. [2019-10-15 01:41:57,871 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 515 transitions. Word has length 94 [2019-10-15 01:41:57,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:41:57,873 INFO L462 AbstractCegarLoop]: Abstraction has 343 states and 515 transitions. [2019-10-15 01:41:57,873 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:41:57,874 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 515 transitions. [2019-10-15 01:41:57,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-15 01:41:57,876 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:41:57,877 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-15 01:41:57,877 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:41:57,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:41:57,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1298849335, now seen corresponding path program 1 times [2019-10-15 01:41:57,878 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:41:57,878 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977030168] [2019-10-15 01:41:57,878 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:41:57,878 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:41:57,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:41:57,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:41:57,997 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:41:57,997 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977030168] [2019-10-15 01:41:57,998 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:41:57,998 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:41:57,998 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139982247] [2019-10-15 01:41:57,999 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:41:57,999 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:41:57,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:41:58,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:41:58,000 INFO L87 Difference]: Start difference. First operand 343 states and 515 transitions. Second operand 3 states. [2019-10-15 01:41:58,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:41:58,449 INFO L93 Difference]: Finished difference Result 1017 states and 1570 transitions. [2019-10-15 01:41:58,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:41:58,450 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2019-10-15 01:41:58,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:41:58,457 INFO L225 Difference]: With dead ends: 1017 [2019-10-15 01:41:58,457 INFO L226 Difference]: Without dead ends: 679 [2019-10-15 01:41:58,461 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:41:58,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2019-10-15 01:41:58,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 679. [2019-10-15 01:41:58,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 679 states. [2019-10-15 01:41:58,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 995 transitions. [2019-10-15 01:41:58,501 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 995 transitions. Word has length 120 [2019-10-15 01:41:58,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:41:58,502 INFO L462 AbstractCegarLoop]: Abstraction has 679 states and 995 transitions. [2019-10-15 01:41:58,502 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:41:58,502 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 995 transitions. [2019-10-15 01:41:58,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2019-10-15 01:41:58,505 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:41:58,505 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-15 01:41:58,506 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:41:58,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:41:58,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1383621181, now seen corresponding path program 1 times [2019-10-15 01:41:58,506 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:41:58,507 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080826421] [2019-10-15 01:41:58,507 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:41:58,507 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:41:58,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:41:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:41:58,765 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 44 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:41:58,766 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080826421] [2019-10-15 01:41:58,767 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346670884] [2019-10-15 01:41:58,768 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 01:41:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:41:58,911 INFO L256 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 01:41:58,928 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:41:59,054 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:41:59,054 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:41:59,181 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:41:59,182 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:41:59,182 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2019-10-15 01:41:59,182 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022586144] [2019-10-15 01:41:59,183 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:41:59,184 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:41:59,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:41:59,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:41:59,184 INFO L87 Difference]: Start difference. First operand 679 states and 995 transitions. Second operand 3 states. [2019-10-15 01:41:59,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:41:59,639 INFO L93 Difference]: Finished difference Result 1185 states and 1789 transitions. [2019-10-15 01:41:59,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:41:59,639 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2019-10-15 01:41:59,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:41:59,648 INFO L225 Difference]: With dead ends: 1185 [2019-10-15 01:41:59,648 INFO L226 Difference]: Without dead ends: 1183 [2019-10-15 01:41:59,649 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 274 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:41:59,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2019-10-15 01:41:59,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1099. [2019-10-15 01:41:59,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1099 states. [2019-10-15 01:41:59,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1633 transitions. [2019-10-15 01:41:59,707 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1633 transitions. Word has length 137 [2019-10-15 01:41:59,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:41:59,707 INFO L462 AbstractCegarLoop]: Abstraction has 1099 states and 1633 transitions. [2019-10-15 01:41:59,707 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:41:59,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1633 transitions. [2019-10-15 01:41:59,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-15 01:41:59,712 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:41:59,712 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-15 01:41:59,917 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:41:59,918 INFO L410 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:41:59,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:41:59,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1126475805, now seen corresponding path program 1 times [2019-10-15 01:41:59,919 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:41:59,920 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327617335] [2019-10-15 01:41:59,920 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:41:59,920 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:41:59,920 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:41:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:42:00,108 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:42:00,108 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327617335] [2019-10-15 01:42:00,109 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:42:00,109 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:42:00,109 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117978592] [2019-10-15 01:42:00,110 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:42:00,110 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:42:00,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:42:00,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:42:00,111 INFO L87 Difference]: Start difference. First operand 1099 states and 1633 transitions. Second operand 6 states. [2019-10-15 01:42:00,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:42:00,542 INFO L93 Difference]: Finished difference Result 2029 states and 2953 transitions. [2019-10-15 01:42:00,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:42:00,542 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2019-10-15 01:42:00,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:42:00,543 INFO L225 Difference]: With dead ends: 2029 [2019-10-15 01:42:00,543 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:42:00,550 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:42:00,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:42:00,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:42:00,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:42:00,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:42:00,551 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 142 [2019-10-15 01:42:00,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:42:00,551 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:42:00,551 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:42:00,552 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:42:00,552 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:42:00,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:42:00,883 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 36 [2019-10-15 01:42:00,993 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~a17~0 |old(~a17~0)|) [2019-10-15 01:42:00,993 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:42:00,993 INFO L443 ceAbstractionStarter]: For program point L234(lines 234 413) no Hoare annotation was computed. [2019-10-15 01:42:00,994 INFO L443 ceAbstractionStarter]: For program point L69(lines 69 413) no Hoare annotation was computed. [2019-10-15 01:42:00,994 INFO L443 ceAbstractionStarter]: For program point L202(lines 202 413) no Hoare annotation was computed. [2019-10-15 01:42:00,994 INFO L443 ceAbstractionStarter]: For program point L169(lines 169 413) no Hoare annotation was computed. [2019-10-15 01:42:00,995 INFO L443 ceAbstractionStarter]: For program point L368(lines 368 413) no Hoare annotation was computed. [2019-10-15 01:42:00,995 INFO L443 ceAbstractionStarter]: For program point L38(lines 38 413) no Hoare annotation was computed. [2019-10-15 01:42:00,995 INFO L443 ceAbstractionStarter]: For program point L402(lines 402 413) no Hoare annotation was computed. [2019-10-15 01:42:00,996 INFO L443 ceAbstractionStarter]: For program point L237(lines 237 413) no Hoare annotation was computed. [2019-10-15 01:42:00,996 INFO L443 ceAbstractionStarter]: For program point L337(lines 337 413) no Hoare annotation was computed. [2019-10-15 01:42:00,996 INFO L443 ceAbstractionStarter]: For program point L139(lines 139 413) no Hoare annotation was computed. [2019-10-15 01:42:00,996 INFO L443 ceAbstractionStarter]: For program point L106(lines 106 413) no Hoare annotation was computed. [2019-10-15 01:42:00,996 INFO L443 ceAbstractionStarter]: For program point L404(lines 404 413) no Hoare annotation was computed. [2019-10-15 01:42:00,996 INFO L443 ceAbstractionStarter]: For program point L74(lines 74 413) no Hoare annotation was computed. [2019-10-15 01:42:00,997 INFO L443 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 514) no Hoare annotation was computed. [2019-10-15 01:42:00,997 INFO L443 ceAbstractionStarter]: For program point L42(lines 42 413) no Hoare annotation was computed. [2019-10-15 01:42:00,997 INFO L443 ceAbstractionStarter]: For program point L175(lines 175 413) no Hoare annotation was computed. [2019-10-15 01:42:01,000 INFO L443 ceAbstractionStarter]: For program point L407(lines 407 413) no Hoare annotation was computed. [2019-10-15 01:42:01,001 INFO L443 ceAbstractionStarter]: For program point L143(lines 143 413) no Hoare annotation was computed. [2019-10-15 01:42:01,001 INFO L443 ceAbstractionStarter]: For program point L375(lines 375 413) no Hoare annotation was computed. [2019-10-15 01:42:01,001 INFO L443 ceAbstractionStarter]: For program point L309(lines 309 413) no Hoare annotation was computed. [2019-10-15 01:42:01,001 INFO L443 ceAbstractionStarter]: For program point L276(lines 276 413) no Hoare annotation was computed. [2019-10-15 01:42:01,001 INFO L443 ceAbstractionStarter]: For program point L409(lines 409 413) no Hoare annotation was computed. [2019-10-15 01:42:01,001 INFO L443 ceAbstractionStarter]: For program point L212(lines 212 413) no Hoare annotation was computed. [2019-10-15 01:42:01,002 INFO L443 ceAbstractionStarter]: For program point L179(lines 179 413) no Hoare annotation was computed. [2019-10-15 01:42:01,002 INFO L443 ceAbstractionStarter]: For program point L113(lines 113 413) no Hoare annotation was computed. [2019-10-15 01:42:01,002 INFO L443 ceAbstractionStarter]: For program point L47(lines 47 413) no Hoare annotation was computed. [2019-10-15 01:42:01,003 INFO L443 ceAbstractionStarter]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2019-10-15 01:42:01,003 INFO L443 ceAbstractionStarter]: For program point L378(lines 378 413) no Hoare annotation was computed. [2019-10-15 01:42:01,003 INFO L443 ceAbstractionStarter]: For program point L280(lines 280 413) no Hoare annotation was computed. [2019-10-15 01:42:01,003 INFO L443 ceAbstractionStarter]: For program point L148(lines 148 413) no Hoare annotation was computed. [2019-10-15 01:42:01,003 INFO L443 ceAbstractionStarter]: For program point L82(lines 82 413) no Hoare annotation was computed. [2019-10-15 01:42:01,003 INFO L443 ceAbstractionStarter]: For program point L380(lines 380 413) no Hoare annotation was computed. [2019-10-15 01:42:01,003 INFO L443 ceAbstractionStarter]: For program point L314(lines 314 413) no Hoare annotation was computed. [2019-10-15 01:42:01,004 INFO L443 ceAbstractionStarter]: For program point L248(lines 248 413) no Hoare annotation was computed. [2019-10-15 01:42:01,004 INFO L443 ceAbstractionStarter]: For program point L215(lines 215 413) no Hoare annotation was computed. [2019-10-15 01:42:01,004 INFO L443 ceAbstractionStarter]: For program point L50(lines 50 413) no Hoare annotation was computed. [2019-10-15 01:42:01,004 INFO L443 ceAbstractionStarter]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2019-10-15 01:42:01,004 INFO L443 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2019-10-15 01:42:01,004 INFO L443 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2019-10-15 01:42:01,004 INFO L443 ceAbstractionStarter]: For program point L514(line 514) no Hoare annotation was computed. [2019-10-15 01:42:01,004 INFO L443 ceAbstractionStarter]: For program point L349(lines 349 413) no Hoare annotation was computed. [2019-10-15 01:42:01,005 INFO L443 ceAbstractionStarter]: For program point L283(lines 283 413) no Hoare annotation was computed. [2019-10-15 01:42:01,005 INFO L443 ceAbstractionStarter]: For program point L218(lines 218 413) no Hoare annotation was computed. [2019-10-15 01:42:01,005 INFO L443 ceAbstractionStarter]: For program point L185(lines 185 413) no Hoare annotation was computed. [2019-10-15 01:42:01,005 INFO L443 ceAbstractionStarter]: For program point L119(lines 119 413) no Hoare annotation was computed. [2019-10-15 01:42:01,005 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 413) no Hoare annotation was computed. [2019-10-15 01:42:01,005 INFO L443 ceAbstractionStarter]: For program point L286(lines 286 413) no Hoare annotation was computed. [2019-10-15 01:42:01,005 INFO L443 ceAbstractionStarter]: For program point L253(lines 253 413) no Hoare annotation was computed. [2019-10-15 01:42:01,005 INFO L443 ceAbstractionStarter]: For program point L187(lines 187 413) no Hoare annotation was computed. [2019-10-15 01:42:01,006 INFO L443 ceAbstractionStarter]: For program point L154(lines 154 413) no Hoare annotation was computed. [2019-10-15 01:42:01,006 INFO L443 ceAbstractionStarter]: For program point L354(lines 354 413) no Hoare annotation was computed. [2019-10-15 01:42:01,006 INFO L443 ceAbstractionStarter]: For program point L189(lines 189 413) no Hoare annotation was computed. [2019-10-15 01:42:01,006 INFO L443 ceAbstractionStarter]: For program point L123(lines 123 413) no Hoare annotation was computed. [2019-10-15 01:42:01,006 INFO L443 ceAbstractionStarter]: For program point L223(lines 223 413) no Hoare annotation was computed. [2019-10-15 01:42:01,012 INFO L443 ceAbstractionStarter]: For program point L91(lines 91 413) no Hoare annotation was computed. [2019-10-15 01:42:01,013 INFO L443 ceAbstractionStarter]: For program point L389(lines 389 413) no Hoare annotation was computed. [2019-10-15 01:42:01,013 INFO L443 ceAbstractionStarter]: For program point L191(lines 191 413) no Hoare annotation was computed. [2019-10-15 01:42:01,013 INFO L443 ceAbstractionStarter]: For program point L59(lines 59 413) no Hoare annotation was computed. [2019-10-15 01:42:01,013 INFO L439 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse0 (= ~a11~0 1)) (.cse2 (not (= 1 |old(~a11~0)|))) (.cse4 (not (= 1 |old(~a25~0)|))) (.cse6 (= ~a25~0 1)) (.cse8 (= 9 |old(~a28~0)|)) (.cse7 (not (= ~a28~0 9))) (.cse1 (not (<= 8 |old(~a17~0)|))) (.cse3 (= 9 |old(~a17~0)|)) (.cse5 (= ~a17~0 |old(~a17~0)|))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 (and .cse5 .cse6 .cse0) .cse2 .cse3) (or (and .cse5 .cse0 .cse7) .cse8 .cse2 .cse3) (or (and .cse5 .cse6 .cse7) .cse3 (or .cse4 .cse8)) (or .cse1 .cse4 .cse6 .cse3) (or .cse1 .cse8 .cse7 .cse3) (or .cse1 .cse3 .cse5))) [2019-10-15 01:42:01,014 INFO L443 ceAbstractionStarter]: For program point L291(lines 291 413) no Hoare annotation was computed. [2019-10-15 01:42:01,014 INFO L443 ceAbstractionStarter]: For program point L225(lines 225 413) no Hoare annotation was computed. [2019-10-15 01:42:01,014 INFO L443 ceAbstractionStarter]: For program point L159(lines 159 413) no Hoare annotation was computed. [2019-10-15 01:42:01,014 INFO L443 ceAbstractionStarter]: For program point L259(lines 259 413) no Hoare annotation was computed. [2019-10-15 01:42:01,014 INFO L443 ceAbstractionStarter]: For program point L293(lines 293 413) no Hoare annotation was computed. [2019-10-15 01:42:01,014 INFO L443 ceAbstractionStarter]: For program point L194(lines 194 413) no Hoare annotation was computed. [2019-10-15 01:42:01,014 INFO L443 ceAbstractionStarter]: For program point L95(lines 95 413) no Hoare annotation was computed. [2019-10-15 01:42:01,014 INFO L443 ceAbstractionStarter]: For program point L261(lines 261 413) no Hoare annotation was computed. [2019-10-15 01:42:01,014 INFO L443 ceAbstractionStarter]: For program point L30(lines 30 413) no Hoare annotation was computed. [2019-10-15 01:42:01,015 INFO L443 ceAbstractionStarter]: For program point L394(lines 394 413) no Hoare annotation was computed. [2019-10-15 01:42:01,015 INFO L443 ceAbstractionStarter]: For program point L361(lines 361 413) no Hoare annotation was computed. [2019-10-15 01:42:01,015 INFO L443 ceAbstractionStarter]: For program point L328(lines 328 413) no Hoare annotation was computed. [2019-10-15 01:42:01,015 INFO L443 ceAbstractionStarter]: For program point L130(lines 130 413) no Hoare annotation was computed. [2019-10-15 01:42:01,015 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 413) no Hoare annotation was computed. [2019-10-15 01:42:01,015 INFO L443 ceAbstractionStarter]: For program point L297(lines 297 413) no Hoare annotation was computed. [2019-10-15 01:42:01,015 INFO L443 ceAbstractionStarter]: For program point L198(lines 198 413) no Hoare annotation was computed. [2019-10-15 01:42:01,016 INFO L443 ceAbstractionStarter]: For program point L165(lines 165 413) no Hoare annotation was computed. [2019-10-15 01:42:01,016 INFO L443 ceAbstractionStarter]: For program point L99(lines 99 413) no Hoare annotation was computed. [2019-10-15 01:42:01,016 INFO L443 ceAbstractionStarter]: For program point L331(lines 331 413) no Hoare annotation was computed. [2019-10-15 01:42:01,016 INFO L443 ceAbstractionStarter]: For program point L232(lines 232 413) no Hoare annotation was computed. [2019-10-15 01:42:01,016 INFO L443 ceAbstractionStarter]: For program point L398(lines 398 413) no Hoare annotation was computed. [2019-10-15 01:42:01,017 INFO L443 ceAbstractionStarter]: For program point L134(lines 134 413) no Hoare annotation was computed. [2019-10-15 01:42:01,018 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 413) no Hoare annotation was computed. [2019-10-15 01:42:01,018 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:42:01,018 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= 8 ~a17~0) (not (= ~a28~0 9)) (not (= ~a17~0 9))) [2019-10-15 01:42:01,018 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:42:01,018 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:42:01,018 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= 8 |old(~a17~0)|)) (= 9 |old(~a28~0)|) (and (= ~a17~0 |old(~a17~0)|) (not (= ~a28~0 9))) (= 9 |old(~a17~0)|)) [2019-10-15 01:42:01,019 INFO L439 ceAbstractionStarter]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (= ~a11~0 1)) (.cse1 (not (= ~a17~0 9)))) (or (not (<= 8 |old(~a17~0)|)) (and (= ~a25~0 1) .cse0 .cse1) (and .cse0 (not (= ~a28~0 9)) .cse1) (= 9 |old(~a28~0)|) (= 9 |old(~a17~0)|) (= ~a17~0 |old(~a17~0)|))) [2019-10-15 01:42:01,019 INFO L443 ceAbstractionStarter]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2019-10-15 01:42:01,019 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2019-10-15 01:42:01,019 INFO L439 ceAbstractionStarter]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (= ~a11~0 1)) (.cse1 (not (= ~a17~0 9)))) (or (not (<= 8 |old(~a17~0)|)) (and (= ~a25~0 1) .cse0 .cse1) (and .cse0 (not (= ~a28~0 9)) .cse1) (= 9 |old(~a28~0)|) (= 9 |old(~a17~0)|) (= ~a17~0 |old(~a17~0)|))) [2019-10-15 01:42:01,019 INFO L443 ceAbstractionStarter]: For program point L614-1(line 614) no Hoare annotation was computed. [2019-10-15 01:42:01,019 INFO L443 ceAbstractionStarter]: For program point L611(line 611) no Hoare annotation was computed. [2019-10-15 01:42:01,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:42:01 BoogieIcfgContainer [2019-10-15 01:42:01,053 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:42:01,063 INFO L168 Benchmark]: Toolchain (without parser) took 8092.43 ms. Allocated memory was 136.8 MB in the beginning and 348.1 MB in the end (delta: 211.3 MB). Free memory was 98.2 MB in the beginning and 243.3 MB in the end (delta: -145.1 MB). Peak memory consumption was 66.2 MB. Max. memory is 7.1 GB. [2019-10-15 01:42:01,066 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 01:42:01,067 INFO L168 Benchmark]: CACSL2BoogieTranslator took 710.06 ms. Allocated memory was 136.8 MB in the beginning and 202.4 MB in the end (delta: 65.5 MB). Free memory was 98.0 MB in the beginning and 168.7 MB in the end (delta: -70.7 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. [2019-10-15 01:42:01,068 INFO L168 Benchmark]: Boogie Preprocessor took 94.38 ms. Allocated memory is still 202.4 MB. Free memory was 168.7 MB in the beginning and 163.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2019-10-15 01:42:01,070 INFO L168 Benchmark]: RCFGBuilder took 2025.39 ms. Allocated memory was 202.4 MB in the beginning and 254.3 MB in the end (delta: 51.9 MB). Free memory was 163.7 MB in the beginning and 209.1 MB in the end (delta: -45.3 MB). Peak memory consumption was 118.3 MB. Max. memory is 7.1 GB. [2019-10-15 01:42:01,073 INFO L168 Benchmark]: TraceAbstraction took 5257.74 ms. Allocated memory was 254.3 MB in the beginning and 348.1 MB in the end (delta: 93.8 MB). Free memory was 209.1 MB in the beginning and 243.3 MB in the end (delta: -34.2 MB). Peak memory consumption was 59.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:42:01,077 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 710.06 ms. Allocated memory was 136.8 MB in the beginning and 202.4 MB in the end (delta: 65.5 MB). Free memory was 98.0 MB in the beginning and 168.7 MB in the end (delta: -70.7 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.38 ms. Allocated memory is still 202.4 MB. Free memory was 168.7 MB in the beginning and 163.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2025.39 ms. Allocated memory was 202.4 MB in the beginning and 254.3 MB in the end (delta: 51.9 MB). Free memory was 163.7 MB in the beginning and 209.1 MB in the end (delta: -45.3 MB). Peak memory consumption was 118.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5257.74 ms. Allocated memory was 254.3 MB in the beginning and 348.1 MB in the end (delta: 93.8 MB). Free memory was 209.1 MB in the beginning and 243.3 MB in the end (delta: -34.2 MB). Peak memory consumption was 59.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 514]: 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: 606]: Loop Invariant Derived loop invariant: ((((!(8 <= \old(a17)) || ((a25 == 1 && a11 == 1) && !(a17 == 9))) || ((a11 == 1 && !(a28 == 9)) && !(a17 == 9))) || 9 == \old(a28)) || 9 == \old(a17)) || a17 == \old(a17) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 95 locations, 1 error locations. Result: SAFE, OverallTime: 5.1s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, HoareTripleCheckerStatistics: 416 SDtfs, 357 SDslu, 73 SDs, 0 SdLazy, 1226 SolverSat, 362 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 306 GetRequests, 289 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1099occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 84 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 37 PreInvPairs, 59 NumberOfFragments, 233 HoareAnnotationTreeSize, 37 FomulaSimplifications, 264 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 258 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 716 NumberOfCodeBlocks, 716 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 846 ConstructedInterpolants, 0 QuantifiedInterpolants, 296937 SizeOfPredicates, 2 NumberOfNonLiveVariables, 372 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 229/233 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...