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_label10.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:40:57,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:40:57,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:40:57,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-13 21:40:57,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:40:57,035 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:40:57,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:40:57,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:40:57,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:40:57,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:40:57,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:40:57,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:40:57,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:40:57,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:40:57,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:40:57,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:40:57,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 21:40:57,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:40:57,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:40:57,076 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:40:57,078 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 [2019-10-13 21:40:57,099 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:40:57,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:40:57,102 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:40:57,102 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:40:57,103 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:40:57,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:40:57,103 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:40:57,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:40:57,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:40:57,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:40:57,105 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:40:57,105 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:40:57,105 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:40:57,106 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:40:57,106 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:40:57,106 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:40:57,106 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:40:57,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:40:57,107 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:40:57,107 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:40:57,107 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:40:57,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:40:57,108 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:40:57,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:40:57,108 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:40:57,108 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:40:57,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:40:57,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:40:57,109 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 [2019-10-13 21:40:57,374 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:40:57,387 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:40:57,391 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:40:57,393 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:40:57,393 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:40:57,394 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label10.c [2019-10-13 21:40:57,458 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b60ee1e1/02e3decf9e5e420a868a67923e0f4047/FLAG0115bf0ab [2019-10-13 21:40:58,036 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:40:58,037 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label10.c [2019-10-13 21:40:58,050 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b60ee1e1/02e3decf9e5e420a868a67923e0f4047/FLAG0115bf0ab [2019-10-13 21:40:58,339 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b60ee1e1/02e3decf9e5e420a868a67923e0f4047 [2019-10-13 21:40:58,351 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:40:58,352 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:40:58,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:40:58,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:40:58,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:40:58,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:40:58" (1/1) ... [2019-10-13 21:40:58,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23e285c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:40:58, skipping insertion in model container [2019-10-13 21:40:58,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:40:58" (1/1) ... [2019-10-13 21:40:58,372 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:40:58,418 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:40:58,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:40:58,933 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:40:59,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:40:59,103 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:40:59,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:40:59 WrapperNode [2019-10-13 21:40:59,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:40:59,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:40:59,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:40:59,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:40:59,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:40:59" (1/1) ... [2019-10-13 21:40:59,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:40:59" (1/1) ... [2019-10-13 21:40:59,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:40:59" (1/1) ... [2019-10-13 21:40:59,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:40:59" (1/1) ... [2019-10-13 21:40:59,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:40:59" (1/1) ... [2019-10-13 21:40:59,191 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:40:59" (1/1) ... [2019-10-13 21:40:59,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:40:59" (1/1) ... [2019-10-13 21:40:59,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:40:59,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:40:59,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:40:59,204 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:40:59,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:40:59" (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 [2019-10-13 21:40:59,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:40:59,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:40:59,290 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-13 21:40:59,290 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:40:59,290 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-13 21:40:59,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:40:59,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:40:59,291 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 21:40:59,291 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:40:59,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:40:59,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:41:01,320 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:41:01,321 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-13 21:41:01,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:41:01 BoogieIcfgContainer [2019-10-13 21:41:01,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:41:01,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:41:01,324 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:41:01,327 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:41:01,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:40:58" (1/3) ... [2019-10-13 21:41:01,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a57b4bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:41:01, skipping insertion in model container [2019-10-13 21:41:01,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:40:59" (2/3) ... [2019-10-13 21:41:01,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a57b4bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:41:01, skipping insertion in model container [2019-10-13 21:41:01,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:41:01" (3/3) ... [2019-10-13 21:41:01,332 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label10.c [2019-10-13 21:41:01,343 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:41:01,354 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:41:01,369 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:41:01,399 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:41:01,399 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:41:01,400 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:41:01,400 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:41:01,400 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:41:01,400 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:41:01,401 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:41:01,401 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:41:01,423 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2019-10-13 21:41:01,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-10-13 21:41:01,433 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:41:01,434 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] [2019-10-13 21:41:01,436 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:41:01,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:41:01,443 INFO L82 PathProgramCache]: Analyzing trace with hash -219356617, now seen corresponding path program 1 times [2019-10-13 21:41:01,453 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:41:01,453 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487047185] [2019-10-13 21:41:01,454 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:41:01,454 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:41:01,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:41:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:41:02,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:41:02,013 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487047185] [2019-10-13 21:41:02,015 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:41:02,015 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:41:02,016 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117694070] [2019-10-13 21:41:02,023 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:41:02,023 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:41:02,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:41:02,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:41:02,042 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 4 states. [2019-10-13 21:41:02,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:41:02,980 INFO L93 Difference]: Finished difference Result 361 states and 678 transitions. [2019-10-13 21:41:02,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:41:02,982 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 86 [2019-10-13 21:41:02,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:41:03,000 INFO L225 Difference]: With dead ends: 361 [2019-10-13 21:41:03,000 INFO L226 Difference]: Without dead ends: 259 [2019-10-13 21:41:03,007 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:41:03,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2019-10-13 21:41:03,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 259. [2019-10-13 21:41:03,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2019-10-13 21:41:03,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 480 transitions. [2019-10-13 21:41:03,096 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 480 transitions. Word has length 86 [2019-10-13 21:41:03,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:41:03,097 INFO L462 AbstractCegarLoop]: Abstraction has 259 states and 480 transitions. [2019-10-13 21:41:03,097 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:41:03,097 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 480 transitions. [2019-10-13 21:41:03,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-13 21:41:03,109 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:41:03,109 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:41:03,110 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:41:03,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:41:03,111 INFO L82 PathProgramCache]: Analyzing trace with hash -852383705, now seen corresponding path program 1 times [2019-10-13 21:41:03,112 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:41:03,112 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983600692] [2019-10-13 21:41:03,112 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:41:03,112 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:41:03,112 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:41:03,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:41:03,285 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:41:03,285 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983600692] [2019-10-13 21:41:03,285 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:41:03,286 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:41:03,286 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185231702] [2019-10-13 21:41:03,288 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:41:03,288 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:41:03,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:41:03,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:41:03,289 INFO L87 Difference]: Start difference. First operand 259 states and 480 transitions. Second operand 3 states. [2019-10-13 21:41:03,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:41:03,721 INFO L93 Difference]: Finished difference Result 679 states and 1285 transitions. [2019-10-13 21:41:03,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:41:03,722 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2019-10-13 21:41:03,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:41:03,723 INFO L225 Difference]: With dead ends: 679 [2019-10-13 21:41:03,723 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:41:03,728 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 [2019-10-13 21:41:03,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:41:03,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:41:03,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:41:03,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:41:03,729 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 112 [2019-10-13 21:41:03,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:41:03,729 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:41:03,729 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:41:03,729 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:41:03,730 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:41:03,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:41:03,878 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:41:03,878 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:41:03,879 INFO L443 ceAbstractionStarter]: For program point L234(lines 234 413) no Hoare annotation was computed. [2019-10-13 21:41:03,879 INFO L443 ceAbstractionStarter]: For program point L69(lines 69 413) no Hoare annotation was computed. [2019-10-13 21:41:03,879 INFO L443 ceAbstractionStarter]: For program point L202(lines 202 413) no Hoare annotation was computed. [2019-10-13 21:41:03,879 INFO L443 ceAbstractionStarter]: For program point L169(lines 169 413) no Hoare annotation was computed. [2019-10-13 21:41:03,880 INFO L443 ceAbstractionStarter]: For program point L368(lines 368 413) no Hoare annotation was computed. [2019-10-13 21:41:03,880 INFO L443 ceAbstractionStarter]: For program point L38(lines 38 413) no Hoare annotation was computed. [2019-10-13 21:41:03,880 INFO L443 ceAbstractionStarter]: For program point L402(lines 402 413) no Hoare annotation was computed. [2019-10-13 21:41:03,882 INFO L443 ceAbstractionStarter]: For program point L237(lines 237 413) no Hoare annotation was computed. [2019-10-13 21:41:03,882 INFO L443 ceAbstractionStarter]: For program point L337(lines 337 413) no Hoare annotation was computed. [2019-10-13 21:41:03,882 INFO L443 ceAbstractionStarter]: For program point L139(lines 139 413) no Hoare annotation was computed. [2019-10-13 21:41:03,882 INFO L443 ceAbstractionStarter]: For program point L106(lines 106 413) no Hoare annotation was computed. [2019-10-13 21:41:03,882 INFO L443 ceAbstractionStarter]: For program point L404(lines 404 413) no Hoare annotation was computed. [2019-10-13 21:41:03,882 INFO L443 ceAbstractionStarter]: For program point L74(lines 74 413) no Hoare annotation was computed. [2019-10-13 21:41:03,883 INFO L443 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 577) no Hoare annotation was computed. [2019-10-13 21:41:03,883 INFO L443 ceAbstractionStarter]: For program point L42(lines 42 413) no Hoare annotation was computed. [2019-10-13 21:41:03,884 INFO L443 ceAbstractionStarter]: For program point L175(lines 175 413) no Hoare annotation was computed. [2019-10-13 21:41:03,884 INFO L443 ceAbstractionStarter]: For program point L407(lines 407 413) no Hoare annotation was computed. [2019-10-13 21:41:03,884 INFO L443 ceAbstractionStarter]: For program point L143(lines 143 413) no Hoare annotation was computed. [2019-10-13 21:41:03,885 INFO L443 ceAbstractionStarter]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2019-10-13 21:41:03,885 INFO L443 ceAbstractionStarter]: For program point L375(lines 375 413) no Hoare annotation was computed. [2019-10-13 21:41:03,885 INFO L443 ceAbstractionStarter]: For program point L309(lines 309 413) no Hoare annotation was computed. [2019-10-13 21:41:03,885 INFO L443 ceAbstractionStarter]: For program point L276(lines 276 413) no Hoare annotation was computed. [2019-10-13 21:41:03,885 INFO L443 ceAbstractionStarter]: For program point L409(lines 409 413) no Hoare annotation was computed. [2019-10-13 21:41:03,885 INFO L443 ceAbstractionStarter]: For program point L212(lines 212 413) no Hoare annotation was computed. [2019-10-13 21:41:03,886 INFO L443 ceAbstractionStarter]: For program point L179(lines 179 413) no Hoare annotation was computed. [2019-10-13 21:41:03,886 INFO L443 ceAbstractionStarter]: For program point L113(lines 113 413) no Hoare annotation was computed. [2019-10-13 21:41:03,886 INFO L443 ceAbstractionStarter]: For program point L47(lines 47 413) no Hoare annotation was computed. [2019-10-13 21:41:03,886 INFO L443 ceAbstractionStarter]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2019-10-13 21:41:03,886 INFO L443 ceAbstractionStarter]: For program point L378(lines 378 413) no Hoare annotation was computed. [2019-10-13 21:41:03,886 INFO L443 ceAbstractionStarter]: For program point L577(line 577) no Hoare annotation was computed. [2019-10-13 21:41:03,887 INFO L443 ceAbstractionStarter]: For program point L280(lines 280 413) no Hoare annotation was computed. [2019-10-13 21:41:03,887 INFO L443 ceAbstractionStarter]: For program point L148(lines 148 413) no Hoare annotation was computed. [2019-10-13 21:41:03,887 INFO L443 ceAbstractionStarter]: For program point L82(lines 82 413) no Hoare annotation was computed. [2019-10-13 21:41:03,887 INFO L443 ceAbstractionStarter]: For program point L380(lines 380 413) no Hoare annotation was computed. [2019-10-13 21:41:03,887 INFO L443 ceAbstractionStarter]: For program point L314(lines 314 413) no Hoare annotation was computed. [2019-10-13 21:41:03,887 INFO L443 ceAbstractionStarter]: For program point L248(lines 248 413) no Hoare annotation was computed. [2019-10-13 21:41:03,887 INFO L443 ceAbstractionStarter]: For program point L215(lines 215 413) no Hoare annotation was computed. [2019-10-13 21:41:03,888 INFO L443 ceAbstractionStarter]: For program point L50(lines 50 413) no Hoare annotation was computed. [2019-10-13 21:41:03,888 INFO L443 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2019-10-13 21:41:03,888 INFO L443 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2019-10-13 21:41:03,888 INFO L443 ceAbstractionStarter]: For program point L349(lines 349 413) no Hoare annotation was computed. [2019-10-13 21:41:03,888 INFO L443 ceAbstractionStarter]: For program point L283(lines 283 413) no Hoare annotation was computed. [2019-10-13 21:41:03,888 INFO L443 ceAbstractionStarter]: For program point L218(lines 218 413) no Hoare annotation was computed. [2019-10-13 21:41:03,888 INFO L443 ceAbstractionStarter]: For program point L185(lines 185 413) no Hoare annotation was computed. [2019-10-13 21:41:03,889 INFO L443 ceAbstractionStarter]: For program point L119(lines 119 413) no Hoare annotation was computed. [2019-10-13 21:41:03,889 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 413) no Hoare annotation was computed. [2019-10-13 21:41:03,889 INFO L443 ceAbstractionStarter]: For program point L286(lines 286 413) no Hoare annotation was computed. [2019-10-13 21:41:03,889 INFO L443 ceAbstractionStarter]: For program point L253(lines 253 413) no Hoare annotation was computed. [2019-10-13 21:41:03,889 INFO L443 ceAbstractionStarter]: For program point L187(lines 187 413) no Hoare annotation was computed. [2019-10-13 21:41:03,889 INFO L443 ceAbstractionStarter]: For program point L154(lines 154 413) no Hoare annotation was computed. [2019-10-13 21:41:03,890 INFO L443 ceAbstractionStarter]: For program point L354(lines 354 413) no Hoare annotation was computed. [2019-10-13 21:41:03,890 INFO L443 ceAbstractionStarter]: For program point L189(lines 189 413) no Hoare annotation was computed. [2019-10-13 21:41:03,890 INFO L443 ceAbstractionStarter]: For program point L123(lines 123 413) no Hoare annotation was computed. [2019-10-13 21:41:03,890 INFO L443 ceAbstractionStarter]: For program point L223(lines 223 413) no Hoare annotation was computed. [2019-10-13 21:41:03,890 INFO L443 ceAbstractionStarter]: For program point L91(lines 91 413) no Hoare annotation was computed. [2019-10-13 21:41:03,890 INFO L443 ceAbstractionStarter]: For program point L389(lines 389 413) no Hoare annotation was computed. [2019-10-13 21:41:03,891 INFO L443 ceAbstractionStarter]: For program point L191(lines 191 413) no Hoare annotation was computed. [2019-10-13 21:41:03,891 INFO L443 ceAbstractionStarter]: For program point L59(lines 59 413) no Hoare annotation was computed. [2019-10-13 21:41:03,891 INFO L439 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (and (or (not (= ~a17~0 ~a28~0)) (= |old(~a17~0)| |old(~a28~0)|)) (or (= 7 |old(~a28~0)|) (not (= ~a28~0 ~a17~0)) (not (= ~a28~0 7))) (or (not (= 1 |old(~a25~0)|)) (= ~a25~0 1))) [2019-10-13 21:41:03,891 INFO L443 ceAbstractionStarter]: For program point L291(lines 291 413) no Hoare annotation was computed. [2019-10-13 21:41:03,892 INFO L443 ceAbstractionStarter]: For program point L225(lines 225 413) no Hoare annotation was computed. [2019-10-13 21:41:03,892 INFO L443 ceAbstractionStarter]: For program point L159(lines 159 413) no Hoare annotation was computed. [2019-10-13 21:41:03,892 INFO L443 ceAbstractionStarter]: For program point L259(lines 259 413) no Hoare annotation was computed. [2019-10-13 21:41:03,892 INFO L443 ceAbstractionStarter]: For program point L293(lines 293 413) no Hoare annotation was computed. [2019-10-13 21:41:03,892 INFO L443 ceAbstractionStarter]: For program point L194(lines 194 413) no Hoare annotation was computed. [2019-10-13 21:41:03,892 INFO L443 ceAbstractionStarter]: For program point L95(lines 95 413) no Hoare annotation was computed. [2019-10-13 21:41:03,893 INFO L443 ceAbstractionStarter]: For program point L261(lines 261 413) no Hoare annotation was computed. [2019-10-13 21:41:03,893 INFO L443 ceAbstractionStarter]: For program point L30(lines 30 413) no Hoare annotation was computed. [2019-10-13 21:41:03,893 INFO L443 ceAbstractionStarter]: For program point L394(lines 394 413) no Hoare annotation was computed. [2019-10-13 21:41:03,893 INFO L443 ceAbstractionStarter]: For program point L361(lines 361 413) no Hoare annotation was computed. [2019-10-13 21:41:03,893 INFO L443 ceAbstractionStarter]: For program point L328(lines 328 413) no Hoare annotation was computed. [2019-10-13 21:41:03,893 INFO L443 ceAbstractionStarter]: For program point L130(lines 130 413) no Hoare annotation was computed. [2019-10-13 21:41:03,894 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 413) no Hoare annotation was computed. [2019-10-13 21:41:03,894 INFO L443 ceAbstractionStarter]: For program point L297(lines 297 413) no Hoare annotation was computed. [2019-10-13 21:41:03,894 INFO L443 ceAbstractionStarter]: For program point L198(lines 198 413) no Hoare annotation was computed. [2019-10-13 21:41:03,894 INFO L443 ceAbstractionStarter]: For program point L165(lines 165 413) no Hoare annotation was computed. [2019-10-13 21:41:03,894 INFO L443 ceAbstractionStarter]: For program point L99(lines 99 413) no Hoare annotation was computed. [2019-10-13 21:41:03,895 INFO L443 ceAbstractionStarter]: For program point L331(lines 331 413) no Hoare annotation was computed. [2019-10-13 21:41:03,895 INFO L443 ceAbstractionStarter]: For program point L232(lines 232 413) no Hoare annotation was computed. [2019-10-13 21:41:03,895 INFO L443 ceAbstractionStarter]: For program point L398(lines 398 413) no Hoare annotation was computed. [2019-10-13 21:41:03,895 INFO L443 ceAbstractionStarter]: For program point L134(lines 134 413) no Hoare annotation was computed. [2019-10-13 21:41:03,895 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 413) no Hoare annotation was computed. [2019-10-13 21:41:03,896 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:41:03,896 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (not (= ~a17~0 ~a28~0)) [2019-10-13 21:41:03,896 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:41:03,896 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:41:03,896 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= ~a17~0 ~a28~0)) (= |old(~a17~0)| |old(~a28~0)|)) [2019-10-13 21:41:03,897 INFO L439 ceAbstractionStarter]: At program point L606-2(lines 606 616) the Hoare annotation is: (or (not (= ~a28~0 7)) (not (= ~a17~0 ~a28~0)) (= |old(~a17~0)| |old(~a28~0)|) (= ~a25~0 1)) [2019-10-13 21:41:03,897 INFO L443 ceAbstractionStarter]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2019-10-13 21:41:03,897 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2019-10-13 21:41:03,897 INFO L439 ceAbstractionStarter]: At program point L614(line 614) the Hoare annotation is: (or (not (= ~a28~0 7)) (not (= ~a17~0 ~a28~0)) (= |old(~a17~0)| |old(~a28~0)|) (= ~a25~0 1)) [2019-10-13 21:41:03,897 INFO L443 ceAbstractionStarter]: For program point L614-1(line 614) no Hoare annotation was computed. [2019-10-13 21:41:03,897 INFO L443 ceAbstractionStarter]: For program point L611(line 611) no Hoare annotation was computed. [2019-10-13 21:41:03,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:41:03 BoogieIcfgContainer [2019-10-13 21:41:03,922 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:41:03,926 INFO L168 Benchmark]: Toolchain (without parser) took 5572.23 ms. Allocated memory was 138.9 MB in the beginning and 295.7 MB in the end (delta: 156.8 MB). Free memory was 101.0 MB in the beginning and 207.5 MB in the end (delta: -106.5 MB). Peak memory consumption was 50.3 MB. Max. memory is 7.1 GB. [2019-10-13 21:41:03,927 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 21:41:03,930 INFO L168 Benchmark]: CACSL2BoogieTranslator took 751.38 ms. Allocated memory was 138.9 MB in the beginning and 206.0 MB in the end (delta: 67.1 MB). Free memory was 100.8 MB in the beginning and 172.9 MB in the end (delta: -72.1 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. [2019-10-13 21:41:03,931 INFO L168 Benchmark]: Boogie Preprocessor took 98.33 ms. Allocated memory is still 206.0 MB. Free memory was 172.9 MB in the beginning and 168.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2019-10-13 21:41:03,932 INFO L168 Benchmark]: RCFGBuilder took 2119.45 ms. Allocated memory was 206.0 MB in the beginning and 250.6 MB in the end (delta: 44.6 MB). Free memory was 168.0 MB in the beginning and 197.3 MB in the end (delta: -29.3 MB). Peak memory consumption was 118.2 MB. Max. memory is 7.1 GB. [2019-10-13 21:41:03,934 INFO L168 Benchmark]: TraceAbstraction took 2598.62 ms. Allocated memory was 250.6 MB in the beginning and 295.7 MB in the end (delta: 45.1 MB). Free memory was 197.3 MB in the beginning and 207.5 MB in the end (delta: -10.2 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. [2019-10-13 21:41:03,945 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 751.38 ms. Allocated memory was 138.9 MB in the beginning and 206.0 MB in the end (delta: 67.1 MB). Free memory was 100.8 MB in the beginning and 172.9 MB in the end (delta: -72.1 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.33 ms. Allocated memory is still 206.0 MB. Free memory was 172.9 MB in the beginning and 168.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2119.45 ms. Allocated memory was 206.0 MB in the beginning and 250.6 MB in the end (delta: 44.6 MB). Free memory was 168.0 MB in the beginning and 197.3 MB in the end (delta: -29.3 MB). Peak memory consumption was 118.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2598.62 ms. Allocated memory was 250.6 MB in the beginning and 295.7 MB in the end (delta: 45.1 MB). Free memory was 197.3 MB in the beginning and 207.5 MB in the end (delta: -10.2 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 577]: 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: ((!(a28 == 7) || !(a17 == a28)) || \old(a17) == \old(a28)) || a25 == 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 95 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 199 SDtfs, 131 SDslu, 47 SDs, 0 SdLazy, 557 SolverSat, 266 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=259occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 15 PreInvPairs, 25 NumberOfFragments, 73 HoareAnnotationTreeSize, 15 FomulaSimplifications, 42 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 53 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 196 ConstructedInterpolants, 0 QuantifiedInterpolants, 90587 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 23/23 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...