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_label24.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 00:56:00,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 00:56:00,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 00:56:00,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-07 00:56:00,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 00:56:00,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 00:56:00,234 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 00:56:00,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 00:56:00,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 00:56:00,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 00:56:00,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 00:56:00,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 00:56:00,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 00:56:00,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 00:56:00,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 00:56:00,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 00:56:00,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-07 00:56:00,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 00:56:00,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 00:56:00,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 00:56:00,264 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 00:56:00,287 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 00:56:00,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 00:56:00,289 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 00:56:00,289 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 00:56:00,290 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 00:56:00,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 00:56:00,290 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 00:56:00,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 00:56:00,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 00:56:00,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 00:56:00,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 00:56:00,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 00:56:00,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 00:56:00,292 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 00:56:00,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 00:56:00,293 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 00:56:00,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 00:56:00,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 00:56:00,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 00:56:00,294 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 00:56:00,295 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 00:56:00,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 00:56:00,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 00:56:00,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 00:56:00,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 00:56:00,296 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 00:56:00,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 00:56:00,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 00:56:00,296 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 00:56:00,579 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 00:56:00,592 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 00:56:00,596 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 00:56:00,597 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 00:56:00,597 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 00:56:00,598 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label24.c [2019-10-07 00:56:00,660 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8e19aa0a/ed426ef67b0f44f08e20d07231aa73e7/FLAG66ac4175e [2019-10-07 00:56:01,252 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 00:56:01,253 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label24.c [2019-10-07 00:56:01,271 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8e19aa0a/ed426ef67b0f44f08e20d07231aa73e7/FLAG66ac4175e [2019-10-07 00:56:01,506 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8e19aa0a/ed426ef67b0f44f08e20d07231aa73e7 [2019-10-07 00:56:01,519 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 00:56:01,521 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 00:56:01,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 00:56:01,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 00:56:01,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 00:56:01,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:56:01" (1/1) ... [2019-10-07 00:56:01,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52da3fca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:56:01, skipping insertion in model container [2019-10-07 00:56:01,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:56:01" (1/1) ... [2019-10-07 00:56:01,537 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 00:56:01,592 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 00:56:02,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 00:56:02,121 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 00:56:02,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 00:56:02,299 INFO L192 MainTranslator]: Completed translation [2019-10-07 00:56:02,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:56:02 WrapperNode [2019-10-07 00:56:02,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 00:56:02,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 00:56:02,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 00:56:02,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 00:56:02,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:56:02" (1/1) ... [2019-10-07 00:56:02,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:56:02" (1/1) ... [2019-10-07 00:56:02,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:56:02" (1/1) ... [2019-10-07 00:56:02,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:56:02" (1/1) ... [2019-10-07 00:56:02,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:56:02" (1/1) ... [2019-10-07 00:56:02,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:56:02" (1/1) ... [2019-10-07 00:56:02,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:56:02" (1/1) ... [2019-10-07 00:56:02,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 00:56:02,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 00:56:02,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 00:56:02,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 00:56:02,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:56:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 00:56:02,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 00:56:02,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 00:56:02,503 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-07 00:56:02,504 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 00:56:02,504 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-07 00:56:02,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 00:56:02,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 00:56:02,506 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 00:56:02,506 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 00:56:02,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 00:56:02,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 00:56:04,332 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 00:56:04,333 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-07 00:56:04,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:56:04 BoogieIcfgContainer [2019-10-07 00:56:04,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 00:56:04,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 00:56:04,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 00:56:04,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 00:56:04,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 12:56:01" (1/3) ... [2019-10-07 00:56:04,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20d8004c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:56:04, skipping insertion in model container [2019-10-07 00:56:04,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:56:02" (2/3) ... [2019-10-07 00:56:04,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20d8004c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:56:04, skipping insertion in model container [2019-10-07 00:56:04,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:56:04" (3/3) ... [2019-10-07 00:56:04,343 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label24.c [2019-10-07 00:56:04,353 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 00:56:04,361 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 00:56:04,373 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 00:56:04,399 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 00:56:04,399 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 00:56:04,400 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 00:56:04,400 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 00:56:04,400 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 00:56:04,400 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 00:56:04,401 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 00:56:04,401 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 00:56:04,421 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2019-10-07 00:56:04,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-07 00:56:04,431 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:56:04,433 INFO L385 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] [2019-10-07 00:56:04,435 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:56:04,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:56:04,441 INFO L82 PathProgramCache]: Analyzing trace with hash 826817892, now seen corresponding path program 1 times [2019-10-07 00:56:04,450 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:56:04,450 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:56:04,450 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:56:04,451 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:56:04,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:56:04,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:56:04,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:56:04,976 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:56:04,977 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 00:56:04,978 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 00:56:04,983 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 00:56:04,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 00:56:04,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-07 00:56:05,001 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 4 states. [2019-10-07 00:56:05,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:56:05,700 INFO L93 Difference]: Finished difference Result 325 states and 606 transitions. [2019-10-07 00:56:05,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 00:56:05,702 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 77 [2019-10-07 00:56:05,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:56:05,726 INFO L225 Difference]: With dead ends: 325 [2019-10-07 00:56:05,727 INFO L226 Difference]: Without dead ends: 232 [2019-10-07 00:56:05,734 INFO L606 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 [2019-10-07 00:56:05,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2019-10-07 00:56:05,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 157. [2019-10-07 00:56:05,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-10-07 00:56:05,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 279 transitions. [2019-10-07 00:56:05,819 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 279 transitions. Word has length 77 [2019-10-07 00:56:05,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:56:05,820 INFO L462 AbstractCegarLoop]: Abstraction has 157 states and 279 transitions. [2019-10-07 00:56:05,820 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 00:56:05,820 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 279 transitions. [2019-10-07 00:56:05,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-10-07 00:56:05,825 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:56:05,826 INFO L385 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] [2019-10-07 00:56:05,826 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:56:05,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:56:05,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1195668741, now seen corresponding path program 1 times [2019-10-07 00:56:05,827 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:56:05,827 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:56:05,827 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:56:05,827 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:56:05,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:56:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:56:05,970 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:56:05,971 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:56:05,971 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 00:56:05,971 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 00:56:05,974 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 00:56:05,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 00:56:05,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-07 00:56:05,975 INFO L87 Difference]: Start difference. First operand 157 states and 279 transitions. Second operand 6 states. [2019-10-07 00:56:06,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:56:06,565 INFO L93 Difference]: Finished difference Result 479 states and 882 transitions. [2019-10-07 00:56:06,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 00:56:06,570 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2019-10-07 00:56:06,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:56:06,574 INFO L225 Difference]: With dead ends: 479 [2019-10-07 00:56:06,574 INFO L226 Difference]: Without dead ends: 327 [2019-10-07 00:56:06,577 INFO L606 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 [2019-10-07 00:56:06,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2019-10-07 00:56:06,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 315. [2019-10-07 00:56:06,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2019-10-07 00:56:06,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 558 transitions. [2019-10-07 00:56:06,619 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 558 transitions. Word has length 87 [2019-10-07 00:56:06,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:56:06,619 INFO L462 AbstractCegarLoop]: Abstraction has 315 states and 558 transitions. [2019-10-07 00:56:06,619 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 00:56:06,619 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 558 transitions. [2019-10-07 00:56:06,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-07 00:56:06,623 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:56:06,624 INFO L385 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:56:06,624 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:56:06,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:56:06,625 INFO L82 PathProgramCache]: Analyzing trace with hash -2128690345, now seen corresponding path program 1 times [2019-10-07 00:56:06,625 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:56:06,625 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:56:06,625 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:56:06,625 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:56:06,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:56:06,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:56:06,801 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:56:06,801 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:56:06,802 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:56:06,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:56:06,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:56:06,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 00:56:06,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:56:07,017 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:56:07,018 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:56:07,075 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:56:07,076 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 00:56:07,076 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2019-10-07 00:56:07,078 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 00:56:07,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 00:56:07,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-07 00:56:07,079 INFO L87 Difference]: Start difference. First operand 315 states and 558 transitions. Second operand 3 states. [2019-10-07 00:56:07,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:56:07,466 INFO L93 Difference]: Finished difference Result 775 states and 1394 transitions. [2019-10-07 00:56:07,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 00:56:07,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2019-10-07 00:56:07,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:56:07,474 INFO L225 Difference]: With dead ends: 775 [2019-10-07 00:56:07,474 INFO L226 Difference]: Without dead ends: 465 [2019-10-07 00:56:07,476 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 175 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-07 00:56:07,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2019-10-07 00:56:07,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 465. [2019-10-07 00:56:07,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2019-10-07 00:56:07,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 792 transitions. [2019-10-07 00:56:07,516 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 792 transitions. Word has length 88 [2019-10-07 00:56:07,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:56:07,517 INFO L462 AbstractCegarLoop]: Abstraction has 465 states and 792 transitions. [2019-10-07 00:56:07,517 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 00:56:07,517 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 792 transitions. [2019-10-07 00:56:07,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-07 00:56:07,529 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:56:07,529 INFO L385 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:56:07,730 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:56:07,731 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:56:07,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:56:07,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1557874255, now seen corresponding path program 1 times [2019-10-07 00:56:07,732 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:56:07,732 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:56:07,733 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:56:07,733 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:56:07,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:56:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:56:07,839 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:56:07,840 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:56:07,840 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 00:56:07,840 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 00:56:07,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 00:56:07,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 00:56:07,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-07 00:56:07,842 INFO L87 Difference]: Start difference. First operand 465 states and 792 transitions. Second operand 4 states. [2019-10-07 00:56:08,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:56:08,578 INFO L93 Difference]: Finished difference Result 1300 states and 2275 transitions. [2019-10-07 00:56:08,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 00:56:08,578 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2019-10-07 00:56:08,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:56:08,579 INFO L225 Difference]: With dead ends: 1300 [2019-10-07 00:56:08,579 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 00:56:08,582 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-07 00:56:08,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 00:56:08,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 00:56:08,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 00:56:08,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 00:56:08,584 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 92 [2019-10-07 00:56:08,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:56:08,584 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 00:56:08,584 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 00:56:08,584 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 00:56:08,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 00:56:08,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 00:56:08,759 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-10-07 00:56:08,826 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~a16~0 |old(~a16~0)|) [2019-10-07 00:56:08,826 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 00:56:08,826 INFO L443 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-10-07 00:56:08,827 INFO L443 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-10-07 00:56:08,827 INFO L443 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 470) no Hoare annotation was computed. [2019-10-07 00:56:08,827 INFO L443 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2019-10-07 00:56:08,827 INFO L443 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-10-07 00:56:08,827 INFO L443 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-10-07 00:56:08,827 INFO L443 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-10-07 00:56:08,827 INFO L443 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-10-07 00:56:08,827 INFO L443 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2019-10-07 00:56:08,827 INFO L443 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-10-07 00:56:08,828 INFO L443 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-10-07 00:56:08,828 INFO L443 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2019-10-07 00:56:08,828 INFO L443 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-10-07 00:56:08,828 INFO L443 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-10-07 00:56:08,828 INFO L443 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-10-07 00:56:08,828 INFO L443 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-10-07 00:56:08,828 INFO L443 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-10-07 00:56:08,829 INFO L443 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-10-07 00:56:08,829 INFO L443 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-10-07 00:56:08,829 INFO L443 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-10-07 00:56:08,829 INFO L443 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-10-07 00:56:08,829 INFO L443 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-10-07 00:56:08,829 INFO L443 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-10-07 00:56:08,830 INFO L443 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-10-07 00:56:08,830 INFO L443 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-10-07 00:56:08,830 INFO L443 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-10-07 00:56:08,830 INFO L443 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-10-07 00:56:08,830 INFO L443 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-10-07 00:56:08,830 INFO L443 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-10-07 00:56:08,830 INFO L443 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-10-07 00:56:08,831 INFO L443 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-10-07 00:56:08,831 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-10-07 00:56:08,831 INFO L443 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-10-07 00:56:08,831 INFO L443 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2019-10-07 00:56:08,831 INFO L443 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2019-10-07 00:56:08,831 INFO L443 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-10-07 00:56:08,831 INFO L443 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-10-07 00:56:08,832 INFO L443 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-10-07 00:56:08,832 INFO L443 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-10-07 00:56:08,832 INFO L443 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-10-07 00:56:08,832 INFO L443 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-10-07 00:56:08,832 INFO L443 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-10-07 00:56:08,832 INFO L443 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-10-07 00:56:08,832 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-10-07 00:56:08,833 INFO L443 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-10-07 00:56:08,833 INFO L443 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-10-07 00:56:08,833 INFO L443 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-10-07 00:56:08,833 INFO L443 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-10-07 00:56:08,833 INFO L443 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-10-07 00:56:08,833 INFO L443 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-10-07 00:56:08,833 INFO L443 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-10-07 00:56:08,833 INFO L443 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-10-07 00:56:08,834 INFO L439 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (= ~a16~0 |old(~a16~0)|))) (and (or (and (= 13 ~a8~0) .cse0) (not (= 13 |old(~a8~0)|))) (or (and .cse0 (or (not (= 1 ~a7~0)) (not (= ~a20~0 ~a7~0)))) (and (= |old(~a7~0)| |old(~a20~0)|) (= 1 |old(~a20~0)|))) (or (= 6 |old(~a16~0)|) (and .cse0 (not (= 15 ~a8~0))) (= 15 |old(~a8~0)|)))) [2019-10-07 00:56:08,834 INFO L443 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-10-07 00:56:08,834 INFO L443 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-10-07 00:56:08,834 INFO L443 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-10-07 00:56:08,834 INFO L443 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-10-07 00:56:08,834 INFO L443 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-10-07 00:56:08,834 INFO L443 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-10-07 00:56:08,834 INFO L443 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-10-07 00:56:08,834 INFO L443 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-10-07 00:56:08,835 INFO L443 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-10-07 00:56:08,835 INFO L443 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-10-07 00:56:08,835 INFO L443 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-10-07 00:56:08,835 INFO L443 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-10-07 00:56:08,835 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-10-07 00:56:08,835 INFO L443 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-10-07 00:56:08,835 INFO L443 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-10-07 00:56:08,836 INFO L443 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-10-07 00:56:08,836 INFO L443 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-10-07 00:56:08,836 INFO L443 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-10-07 00:56:08,836 INFO L443 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-10-07 00:56:08,836 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-10-07 00:56:08,836 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 00:56:08,836 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (not (= ~a16~0 6)) (not (= ~a20~0 ~a7~0))) [2019-10-07 00:56:08,837 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 00:56:08,837 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 00:56:08,837 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (= 6 |old(~a16~0)|) (= |old(~a7~0)| |old(~a20~0)|) (and (= ~a16~0 |old(~a16~0)|) (not (= ~a20~0 ~a7~0)))) [2019-10-07 00:56:08,837 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2019-10-07 00:56:08,837 INFO L439 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (or (= 6 |old(~a16~0)|) (= 13 ~a8~0) (and (not (= 15 ~a8~0)) (not (= ~a16~0 6))) (= |old(~a7~0)| |old(~a20~0)|) (not (= 1 ~a7~0)) (not (= ~a20~0 ~a7~0))) [2019-10-07 00:56:08,837 INFO L443 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2019-10-07 00:56:08,838 INFO L443 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2019-10-07 00:56:08,838 INFO L439 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (or (= 6 |old(~a16~0)|) (= 13 ~a8~0) (and (not (= 15 ~a8~0)) (not (= ~a16~0 6))) (= |old(~a7~0)| |old(~a20~0)|) (not (= 1 ~a7~0)) (not (= ~a20~0 ~a7~0))) [2019-10-07 00:56:08,838 INFO L443 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2019-10-07 00:56:08,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 12:56:08 BoogieIcfgContainer [2019-10-07 00:56:08,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 00:56:08,857 INFO L168 Benchmark]: Toolchain (without parser) took 7336.29 ms. Allocated memory was 142.6 MB in the beginning and 305.7 MB in the end (delta: 163.1 MB). Free memory was 99.0 MB in the beginning and 176.7 MB in the end (delta: -77.7 MB). Peak memory consumption was 85.4 MB. Max. memory is 7.1 GB. [2019-10-07 00:56:08,858 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 142.6 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-07 00:56:08,859 INFO L168 Benchmark]: CACSL2BoogieTranslator took 778.65 ms. Allocated memory was 142.6 MB in the beginning and 201.3 MB in the end (delta: 58.7 MB). Free memory was 98.8 MB in the beginning and 162.8 MB in the end (delta: -64.1 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2019-10-07 00:56:08,860 INFO L168 Benchmark]: Boogie Preprocessor took 120.76 ms. Allocated memory is still 201.3 MB. Free memory was 162.8 MB in the beginning and 157.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2019-10-07 00:56:08,861 INFO L168 Benchmark]: RCFGBuilder took 1912.40 ms. Allocated memory was 201.3 MB in the beginning and 254.3 MB in the end (delta: 53.0 MB). Free memory was 157.7 MB in the beginning and 218.5 MB in the end (delta: -60.8 MB). Peak memory consumption was 113.5 MB. Max. memory is 7.1 GB. [2019-10-07 00:56:08,862 INFO L168 Benchmark]: TraceAbstraction took 4519.67 ms. Allocated memory was 254.3 MB in the beginning and 305.7 MB in the end (delta: 51.4 MB). Free memory was 218.5 MB in the beginning and 176.7 MB in the end (delta: 41.8 MB). Peak memory consumption was 93.2 MB. Max. memory is 7.1 GB. [2019-10-07 00:56:08,867 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 142.6 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 778.65 ms. Allocated memory was 142.6 MB in the beginning and 201.3 MB in the end (delta: 58.7 MB). Free memory was 98.8 MB in the beginning and 162.8 MB in the end (delta: -64.1 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.76 ms. Allocated memory is still 201.3 MB. Free memory was 162.8 MB in the beginning and 157.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1912.40 ms. Allocated memory was 201.3 MB in the beginning and 254.3 MB in the end (delta: 53.0 MB). Free memory was 157.7 MB in the beginning and 218.5 MB in the end (delta: -60.8 MB). Peak memory consumption was 113.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4519.67 ms. Allocated memory was 254.3 MB in the beginning and 305.7 MB in the end (delta: 51.4 MB). Free memory was 218.5 MB in the beginning and 176.7 MB in the end (delta: 41.8 MB). Peak memory consumption was 93.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 470]: 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: ((((6 == \old(a16) || 13 == a8) || (!(15 == a8) && !(a16 == 6))) || \old(a7) == \old(a20)) || !(1 == a7)) || !(a20 == a7) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 86 locations, 1 error locations. Result: SAFE, OverallTime: 4.4s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 351 SDtfs, 490 SDslu, 101 SDs, 0 SdLazy, 1335 SolverSat, 404 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 205 GetRequests, 185 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=465occurred 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, 87 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 30 PreInvPairs, 52 NumberOfFragments, 131 HoareAnnotationTreeSize, 30 FomulaSimplifications, 572 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 320 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 432 NumberOfCodeBlocks, 432 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 514 ConstructedInterpolants, 0 QuantifiedInterpolants, 158355 SizeOfPredicates, 2 NumberOfNonLiveVariables, 350 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 38/43 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...