/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label58.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 01:36:55,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 01:36:55,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 01:36:55,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-07 01:36:55,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 01:36:55,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 01:36:55,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 01:36:55,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 01:36:55,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 01:36:55,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 01:36:55,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 01:36:55,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 01:36:55,247 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 01:36:55,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 01:36:55,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 01:36:55,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 01:36:55,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 01:36:55,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 01:36:55,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 01:36:55,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 01:36:55,273 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 01:36:55,290 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 01:36:55,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 01:36:55,292 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 01:36:55,292 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 01:36:55,292 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 01:36:55,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 01:36:55,293 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 01:36:55,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 01:36:55,293 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 01:36:55,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 01:36:55,294 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 01:36:55,294 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 01:36:55,294 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 01:36:55,294 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 01:36:55,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 01:36:55,295 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 01:36:55,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 01:36:55,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 01:36:55,295 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 01:36:55,295 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 01:36:55,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 01:36:55,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 01:36:55,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 01:36:55,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 01:36:55,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 01:36:55,297 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 01:36:55,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 01:36:55,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 01:36:55,297 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 01:36:55,654 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 01:36:55,675 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 01:36:55,679 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 01:36:55,680 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 01:36:55,680 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 01:36:55,681 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label58.c [2019-11-07 01:36:55,758 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9452130e/f58a8d5a16f74d35a1159c7a7e20fcdc/FLAG9772c50b7 [2019-11-07 01:36:56,356 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 01:36:56,357 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label58.c [2019-11-07 01:36:56,373 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9452130e/f58a8d5a16f74d35a1159c7a7e20fcdc/FLAG9772c50b7 [2019-11-07 01:36:56,634 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9452130e/f58a8d5a16f74d35a1159c7a7e20fcdc [2019-11-07 01:36:56,664 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 01:36:56,668 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 01:36:56,680 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 01:36:56,680 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 01:36:56,684 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 01:36:56,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:36:56" (1/1) ... [2019-11-07 01:36:56,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c134131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:56, skipping insertion in model container [2019-11-07 01:36:56,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:36:56" (1/1) ... [2019-11-07 01:36:56,711 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 01:36:56,834 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 01:36:57,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:36:57,619 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 01:36:57,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:36:57,717 INFO L192 MainTranslator]: Completed translation [2019-11-07 01:36:57,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:57 WrapperNode [2019-11-07 01:36:57,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 01:36:57,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 01:36:57,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 01:36:57,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 01:36:57,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:57" (1/1) ... [2019-11-07 01:36:57,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:57" (1/1) ... [2019-11-07 01:36:57,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:57" (1/1) ... [2019-11-07 01:36:57,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:57" (1/1) ... [2019-11-07 01:36:57,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:57" (1/1) ... [2019-11-07 01:36:57,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:57" (1/1) ... [2019-11-07 01:36:57,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:57" (1/1) ... [2019-11-07 01:36:57,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 01:36:57,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 01:36:57,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 01:36:57,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 01:36:57,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 01:36:57,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 01:36:57,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 01:36:57,908 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-11-07 01:36:57,908 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 01:36:57,908 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-11-07 01:36:57,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 01:36:57,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 01:36:57,910 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 01:36:57,910 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 01:36:57,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 01:36:57,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 01:36:59,680 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 01:36:59,680 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 01:36:59,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:36:59 BoogieIcfgContainer [2019-11-07 01:36:59,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 01:36:59,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 01:36:59,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 01:36:59,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 01:36:59,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:36:56" (1/3) ... [2019-11-07 01:36:59,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7728d5d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:36:59, skipping insertion in model container [2019-11-07 01:36:59,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:36:57" (2/3) ... [2019-11-07 01:36:59,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7728d5d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:36:59, skipping insertion in model container [2019-11-07 01:36:59,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:36:59" (3/3) ... [2019-11-07 01:36:59,690 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label58.c [2019-11-07 01:36:59,700 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 01:36:59,714 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 01:36:59,730 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 01:36:59,760 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 01:36:59,760 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 01:36:59,760 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 01:36:59,760 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 01:36:59,760 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 01:36:59,761 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 01:36:59,761 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 01:36:59,761 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 01:36:59,781 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2019-11-07 01:36:59,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-11-07 01:36:59,790 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:36:59,791 INFO L410 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] [2019-11-07 01:36:59,793 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:36:59,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:36:59,800 INFO L82 PathProgramCache]: Analyzing trace with hash 826818148, now seen corresponding path program 1 times [2019-11-07 01:36:59,809 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:36:59,810 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064666485] [2019-11-07 01:36:59,810 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:36:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:37:00,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:37:00,258 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064666485] [2019-11-07 01:37:00,259 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:37:00,259 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 01:37:00,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253892680] [2019-11-07 01:37:00,267 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 01:37:00,267 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 01:37:00,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 01:37:00,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 01:37:00,287 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 3 states. [2019-11-07 01:37:00,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:37:00,850 INFO L93 Difference]: Finished difference Result 246 states and 454 transitions. [2019-11-07 01:37:00,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 01:37:00,852 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2019-11-07 01:37:00,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:37:00,875 INFO L225 Difference]: With dead ends: 246 [2019-11-07 01:37:00,875 INFO L226 Difference]: Without dead ends: 157 [2019-11-07 01:37:00,882 INFO L630 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 [2019-11-07 01:37:00,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-11-07 01:37:00,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2019-11-07 01:37:00,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-11-07 01:37:00,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 291 transitions. [2019-11-07 01:37:00,987 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 291 transitions. Word has length 77 [2019-11-07 01:37:00,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:37:00,988 INFO L462 AbstractCegarLoop]: Abstraction has 157 states and 291 transitions. [2019-11-07 01:37:00,988 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 01:37:00,989 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 291 transitions. [2019-11-07 01:37:00,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-11-07 01:37:00,998 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:37:00,999 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 01:37:00,999 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:37:00,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:37:01,000 INFO L82 PathProgramCache]: Analyzing trace with hash 579793099, now seen corresponding path program 1 times [2019-11-07 01:37:01,000 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:37:01,001 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368532915] [2019-11-07 01:37:01,001 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:37:01,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:37:01,191 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:37:01,192 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368532915] [2019-11-07 01:37:01,192 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:37:01,192 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 01:37:01,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221489571] [2019-11-07 01:37:01,194 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 01:37:01,195 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 01:37:01,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 01:37:01,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-07 01:37:01,196 INFO L87 Difference]: Start difference. First operand 157 states and 291 transitions. Second operand 4 states. [2019-11-07 01:37:01,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:37:01,918 INFO L93 Difference]: Finished difference Result 532 states and 1024 transitions. [2019-11-07 01:37:01,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 01:37:01,919 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 94 [2019-11-07 01:37:01,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:37:01,920 INFO L225 Difference]: With dead ends: 532 [2019-11-07 01:37:01,921 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 01:37:01,925 INFO L630 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 [2019-11-07 01:37:01,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 01:37:01,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 01:37:01,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 01:37:01,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 01:37:01,926 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 94 [2019-11-07 01:37:01,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:37:01,926 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 01:37:01,927 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 01:37:01,927 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 01:37:01,927 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 01:37:01,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 01:37:02,089 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-07 01:37:02,089 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 01:37:02,089 INFO L443 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-11-07 01:37:02,089 INFO L443 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-11-07 01:37:02,090 INFO L443 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-11-07 01:37:02,090 INFO L443 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-11-07 01:37:02,090 INFO L443 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-11-07 01:37:02,090 INFO L443 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-11-07 01:37:02,090 INFO L443 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2019-11-07 01:37:02,090 INFO L443 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-11-07 01:37:02,090 INFO L443 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-11-07 01:37:02,090 INFO L443 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-11-07 01:37:02,091 INFO L443 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-11-07 01:37:02,091 INFO L443 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-11-07 01:37:02,091 INFO L443 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-11-07 01:37:02,091 INFO L443 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-11-07 01:37:02,091 INFO L443 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-11-07 01:37:02,091 INFO L443 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2019-11-07 01:37:02,092 INFO L443 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-11-07 01:37:02,092 INFO L443 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-11-07 01:37:02,092 INFO L443 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2019-11-07 01:37:02,092 INFO L443 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-11-07 01:37:02,092 INFO L443 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-11-07 01:37:02,092 INFO L443 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-11-07 01:37:02,093 INFO L443 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-11-07 01:37:02,093 INFO L443 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-11-07 01:37:02,093 INFO L443 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-11-07 01:37:02,093 INFO L443 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-11-07 01:37:02,093 INFO L443 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-11-07 01:37:02,093 INFO L443 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-11-07 01:37:02,093 INFO L443 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-11-07 01:37:02,094 INFO L443 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-11-07 01:37:02,094 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-11-07 01:37:02,094 INFO L443 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-11-07 01:37:02,094 INFO L443 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2019-11-07 01:37:02,094 INFO L443 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2019-11-07 01:37:02,094 INFO L443 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-11-07 01:37:02,094 INFO L443 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-11-07 01:37:02,095 INFO L443 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-11-07 01:37:02,095 INFO L443 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-11-07 01:37:02,095 INFO L443 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-11-07 01:37:02,095 INFO L443 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-11-07 01:37:02,095 INFO L443 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-11-07 01:37:02,095 INFO L443 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-11-07 01:37:02,096 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-11-07 01:37:02,096 INFO L443 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-11-07 01:37:02,096 INFO L443 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-11-07 01:37:02,096 INFO L443 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-11-07 01:37:02,096 INFO L443 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 473) no Hoare annotation was computed. [2019-11-07 01:37:02,096 INFO L443 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-11-07 01:37:02,096 INFO L443 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-11-07 01:37:02,097 INFO L443 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-11-07 01:37:02,097 INFO L443 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-11-07 01:37:02,097 INFO L443 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-11-07 01:37:02,097 INFO L439 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (and (or (= 6 |old(~a16~0)|) (not (= ~a16~0 6))) (or (= 14 |old(~a8~0)|) (not (= 14 ~a8~0))) (or (not (= 4 |old(~a16~0)|)) (= ~a16~0 4))) [2019-11-07 01:37:02,097 INFO L443 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-11-07 01:37:02,098 INFO L443 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-11-07 01:37:02,098 INFO L443 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-11-07 01:37:02,098 INFO L443 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-11-07 01:37:02,098 INFO L443 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-11-07 01:37:02,098 INFO L443 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-11-07 01:37:02,098 INFO L443 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-11-07 01:37:02,098 INFO L443 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-11-07 01:37:02,099 INFO L443 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-11-07 01:37:02,099 INFO L443 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-11-07 01:37:02,099 INFO L443 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-11-07 01:37:02,099 INFO L443 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-11-07 01:37:02,099 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-11-07 01:37:02,099 INFO L443 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-11-07 01:37:02,099 INFO L443 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-11-07 01:37:02,100 INFO L443 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-11-07 01:37:02,100 INFO L443 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-11-07 01:37:02,100 INFO L443 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-11-07 01:37:02,100 INFO L443 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-11-07 01:37:02,100 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-11-07 01:37:02,100 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 01:37:02,101 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (not (= ~a16~0 6)) (not (= 14 ~a8~0))) [2019-11-07 01:37:02,101 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 01:37:02,101 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 01:37:02,101 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (= 6 |old(~a16~0)|) (= 14 |old(~a8~0)|) (and (not (= ~a16~0 6)) (not (= 14 ~a8~0)))) [2019-11-07 01:37:02,101 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2019-11-07 01:37:02,101 INFO L439 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (or (= 6 |old(~a16~0)|) (= 14 |old(~a8~0)|) (not (= ~a16~0 6)) (not (= 14 ~a8~0))) [2019-11-07 01:37:02,102 INFO L443 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2019-11-07 01:37:02,102 INFO L443 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2019-11-07 01:37:02,102 INFO L439 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (or (= 6 |old(~a16~0)|) (= 14 |old(~a8~0)|) (not (= ~a16~0 6)) (not (= 14 ~a8~0))) [2019-11-07 01:37:02,102 INFO L443 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2019-11-07 01:37:02,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:37:02 BoogieIcfgContainer [2019-11-07 01:37:02,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 01:37:02,124 INFO L168 Benchmark]: Toolchain (without parser) took 5457.76 ms. Allocated memory was 113.2 MB in the beginning and 230.2 MB in the end (delta: 116.9 MB). Free memory was 71.0 MB in the beginning and 118.2 MB in the end (delta: -47.2 MB). Peak memory consumption was 69.7 MB. Max. memory is 7.1 GB. [2019-11-07 01:37:02,125 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 113.2 MB. Free memory was 90.4 MB in the beginning and 90.3 MB in the end (delta: 104.9 kB). Peak memory consumption was 104.9 kB. Max. memory is 7.1 GB. [2019-11-07 01:37:02,126 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1038.01 ms. Allocated memory was 113.2 MB in the beginning and 167.8 MB in the end (delta: 54.5 MB). Free memory was 70.8 MB in the beginning and 139.2 MB in the end (delta: -68.4 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. [2019-11-07 01:37:02,127 INFO L168 Benchmark]: Boogie Preprocessor took 105.49 ms. Allocated memory is still 167.8 MB. Free memory was 139.2 MB in the beginning and 134.1 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2019-11-07 01:37:02,128 INFO L168 Benchmark]: RCFGBuilder took 1858.16 ms. Allocated memory was 167.8 MB in the beginning and 210.2 MB in the end (delta: 42.5 MB). Free memory was 134.1 MB in the beginning and 168.9 MB in the end (delta: -34.8 MB). Peak memory consumption was 58.6 MB. Max. memory is 7.1 GB. [2019-11-07 01:37:02,129 INFO L168 Benchmark]: TraceAbstraction took 2438.22 ms. Allocated memory was 210.2 MB in the beginning and 230.2 MB in the end (delta: 19.9 MB). Free memory was 168.9 MB in the beginning and 118.2 MB in the end (delta: 50.7 MB). Peak memory consumption was 70.6 MB. Max. memory is 7.1 GB. [2019-11-07 01:37:02,134 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 113.2 MB. Free memory was 90.4 MB in the beginning and 90.3 MB in the end (delta: 104.9 kB). Peak memory consumption was 104.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1038.01 ms. Allocated memory was 113.2 MB in the beginning and 167.8 MB in the end (delta: 54.5 MB). Free memory was 70.8 MB in the beginning and 139.2 MB in the end (delta: -68.4 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.49 ms. Allocated memory is still 167.8 MB. Free memory was 139.2 MB in the beginning and 134.1 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1858.16 ms. Allocated memory was 167.8 MB in the beginning and 210.2 MB in the end (delta: 42.5 MB). Free memory was 134.1 MB in the beginning and 168.9 MB in the end (delta: -34.8 MB). Peak memory consumption was 58.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2438.22 ms. Allocated memory was 210.2 MB in the beginning and 230.2 MB in the end (delta: 19.9 MB). Free memory was 168.9 MB in the beginning and 118.2 MB in the end (delta: 50.7 MB). Peak memory consumption was 70.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 473]: 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) || 14 == \old(a8)) || !(a16 == 6)) || !(14 == a8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 86 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 48 SDtfs, 130 SDslu, 31 SDs, 0 SdLazy, 653 SolverSat, 213 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=157occurred 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, 14 PreInvPairs, 24 NumberOfFragments, 82 HoareAnnotationTreeSize, 14 FomulaSimplifications, 34 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 38 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 169 ConstructedInterpolants, 0 QuantifiedInterpolants, 51199 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 14/14 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...