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_label32.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:42:07,770 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:42:07,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:42:07,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-15 01:42:07,812 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:42:07,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:42:07,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:42:07,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:42:07,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:42:07,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:42:07,826 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:42:07,829 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:42:07,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:42:07,836 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:42:07,837 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:42:07,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:42:07,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 01:42:07,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:42:07,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:42:07,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:42:07,859 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:42:07,877 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:42:07,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:42:07,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:42:07,879 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:42:07,879 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:42:07,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:42:07,879 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:42:07,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:42:07,880 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:42:07,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:42:07,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:42:07,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:42:07,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:42:07,881 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:42:07,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:42:07,881 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:42:07,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:42:07,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:42:07,882 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:42:07,882 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:42:07,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:42:07,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:42:07,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:42:07,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:42:07,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:42:07,883 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:42:07,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:42:07,884 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:42:07,884 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 01:42:08,217 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:42:08,235 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:42:08,239 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:42:08,241 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:42:08,241 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:42:08,242 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label32.c [2019-10-15 01:42:08,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/431a5f113/06f98bf277b94da8a58abc05cb5007ef/FLAGa2215f313 [2019-10-15 01:42:08,845 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:42:08,846 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label32.c [2019-10-15 01:42:08,862 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/431a5f113/06f98bf277b94da8a58abc05cb5007ef/FLAGa2215f313 [2019-10-15 01:42:09,080 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/431a5f113/06f98bf277b94da8a58abc05cb5007ef [2019-10-15 01:42:09,092 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:42:09,093 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:42:09,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:42:09,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:42:09,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:42:09,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:42:09" (1/1) ... [2019-10-15 01:42:09,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b2e6592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:09, skipping insertion in model container [2019-10-15 01:42:09,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:42:09" (1/1) ... [2019-10-15 01:42:09,111 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:42:09,164 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:42:09,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:42:09,647 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:42:09,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:42:09,790 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:42:09,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:09 WrapperNode [2019-10-15 01:42:09,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:42:09,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:42:09,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:42:09,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:42:09,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:09" (1/1) ... [2019-10-15 01:42:09,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:09" (1/1) ... [2019-10-15 01:42:09,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:09" (1/1) ... [2019-10-15 01:42:09,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:09" (1/1) ... [2019-10-15 01:42:09,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:09" (1/1) ... [2019-10-15 01:42:09,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:09" (1/1) ... [2019-10-15 01:42:09,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:09" (1/1) ... [2019-10-15 01:42:09,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:42:09,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:42:09,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:42:09,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:42:09,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:42:09,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:42:09,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:42:09,990 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-15 01:42:09,990 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:42:09,991 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-15 01:42:09,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:42:09,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:42:09,993 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:42:09,993 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:42:09,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:42:09,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:42:12,112 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:42:12,112 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 01:42:12,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:42:12 BoogieIcfgContainer [2019-10-15 01:42:12,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:42:12,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:42:12,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:42:12,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:42:12,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:42:09" (1/3) ... [2019-10-15 01:42:12,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8c6844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:42:12, skipping insertion in model container [2019-10-15 01:42:12,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:09" (2/3) ... [2019-10-15 01:42:12,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8c6844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:42:12, skipping insertion in model container [2019-10-15 01:42:12,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:42:12" (3/3) ... [2019-10-15 01:42:12,123 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label32.c [2019-10-15 01:42:12,133 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:42:12,142 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:42:12,153 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:42:12,178 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:42:12,178 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:42:12,178 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:42:12,178 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:42:12,178 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:42:12,179 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:42:12,179 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:42:12,179 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:42:12,200 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2019-10-15 01:42:12,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-10-15 01:42:12,208 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:42:12,209 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:42:12,211 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:42:12,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:42:12,215 INFO L82 PathProgramCache]: Analyzing trace with hash -219363273, now seen corresponding path program 1 times [2019-10-15 01:42:12,225 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:42:12,225 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245457560] [2019-10-15 01:42:12,226 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:42:12,226 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:42:12,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:42:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:42:12,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:42:12,658 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245457560] [2019-10-15 01:42:12,659 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:42:12,660 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:42:12,660 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720634879] [2019-10-15 01:42:12,665 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:42:12,666 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:42:12,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:42:12,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:42:12,685 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 3 states. [2019-10-15 01:42:13,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:42:13,253 INFO L93 Difference]: Finished difference Result 273 states and 508 transitions. [2019-10-15 01:42:13,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:42:13,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2019-10-15 01:42:13,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:42:13,272 INFO L225 Difference]: With dead ends: 273 [2019-10-15 01:42:13,272 INFO L226 Difference]: Without dead ends: 175 [2019-10-15 01:42:13,277 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:42:13,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2019-10-15 01:42:13,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2019-10-15 01:42:13,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2019-10-15 01:42:13,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 317 transitions. [2019-10-15 01:42:13,387 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 317 transitions. Word has length 86 [2019-10-15 01:42:13,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:42:13,388 INFO L462 AbstractCegarLoop]: Abstraction has 175 states and 317 transitions. [2019-10-15 01:42:13,388 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:42:13,389 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 317 transitions. [2019-10-15 01:42:13,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-10-15 01:42:13,394 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:42:13,394 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:42:13,395 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:42:13,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:42:13,395 INFO L82 PathProgramCache]: Analyzing trace with hash 656213866, now seen corresponding path program 1 times [2019-10-15 01:42:13,395 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:42:13,396 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979300676] [2019-10-15 01:42:13,396 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:42:13,396 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:42:13,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:42:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:42:13,551 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:42:13,552 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979300676] [2019-10-15 01:42:13,552 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:42:13,553 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:42:13,553 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127484349] [2019-10-15 01:42:13,557 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:42:13,557 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:42:13,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:42:13,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:42:13,558 INFO L87 Difference]: Start difference. First operand 175 states and 317 transitions. Second operand 6 states. [2019-10-15 01:42:14,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:42:14,278 INFO L93 Difference]: Finished difference Result 531 states and 984 transitions. [2019-10-15 01:42:14,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:42:14,282 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2019-10-15 01:42:14,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:42:14,287 INFO L225 Difference]: With dead ends: 531 [2019-10-15 01:42:14,287 INFO L226 Difference]: Without dead ends: 361 [2019-10-15 01:42:14,290 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:42:14,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2019-10-15 01:42:14,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 355. [2019-10-15 01:42:14,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2019-10-15 01:42:14,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 632 transitions. [2019-10-15 01:42:14,333 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 632 transitions. Word has length 104 [2019-10-15 01:42:14,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:42:14,333 INFO L462 AbstractCegarLoop]: Abstraction has 355 states and 632 transitions. [2019-10-15 01:42:14,334 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:42:14,334 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 632 transitions. [2019-10-15 01:42:14,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-10-15 01:42:14,337 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:42:14,338 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:42:14,338 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:42:14,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:42:14,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1842866656, now seen corresponding path program 1 times [2019-10-15 01:42:14,339 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:42:14,339 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84437245] [2019-10-15 01:42:14,339 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:42:14,339 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:42:14,340 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:42:14,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:42:14,475 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-15 01:42:14,476 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84437245] [2019-10-15 01:42:14,476 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876008696] [2019-10-15 01:42:14,476 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:42:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:42:14,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 01:42:14,575 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:42:14,650 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:42:14,650 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:42:14,717 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:42:14,718 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:42:14,718 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 5 [2019-10-15 01:42:14,718 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720910738] [2019-10-15 01:42:14,719 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:42:14,719 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:42:14,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:42:14,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:42:14,720 INFO L87 Difference]: Start difference. First operand 355 states and 632 transitions. Second operand 3 states. [2019-10-15 01:42:15,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:42:15,167 INFO L93 Difference]: Finished difference Result 611 states and 1103 transitions. [2019-10-15 01:42:15,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:42:15,168 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2019-10-15 01:42:15,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:42:15,174 INFO L225 Difference]: With dead ends: 611 [2019-10-15 01:42:15,174 INFO L226 Difference]: Without dead ends: 609 [2019-10-15 01:42:15,175 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 211 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:42:15,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2019-10-15 01:42:15,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 439. [2019-10-15 01:42:15,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 439 states. [2019-10-15 01:42:15,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 787 transitions. [2019-10-15 01:42:15,248 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 787 transitions. Word has length 105 [2019-10-15 01:42:15,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:42:15,249 INFO L462 AbstractCegarLoop]: Abstraction has 439 states and 787 transitions. [2019-10-15 01:42:15,249 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:42:15,249 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 787 transitions. [2019-10-15 01:42:15,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-15 01:42:15,256 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:42:15,256 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:42:15,490 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:42:15,491 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:42:15,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:42:15,491 INFO L82 PathProgramCache]: Analyzing trace with hash -649715024, now seen corresponding path program 1 times [2019-10-15 01:42:15,492 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:42:15,492 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597370022] [2019-10-15 01:42:15,493 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:42:15,493 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:42:15,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:42:15,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:42:15,623 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 56 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-15 01:42:15,624 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597370022] [2019-10-15 01:42:15,624 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732065981] [2019-10-15 01:42:15,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:42:15,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:42:15,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 01:42:15,721 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:42:15,775 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:42:15,775 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:42:15,848 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:42:15,849 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1843531141] [2019-10-15 01:42:15,879 INFO L162 IcfgInterpreter]: Started Sifa with 90 locations of interest [2019-10-15 01:42:15,879 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 01:42:15,886 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 01:42:15,895 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 01:42:15,895 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 01:42:16,194 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 89 for LOIs [2019-10-15 01:42:18,181 INFO L199 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 82 for LOIs [2019-10-15 01:42:20,147 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 22 [2019-10-15 01:42:20,245 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 29 [2019-10-15 01:42:20,386 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 29 [2019-10-15 01:42:20,559 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 52 for LOIs [2019-10-15 01:42:20,576 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 01:42:20,790 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2019-10-15 01:42:21,022 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 53 [2019-10-15 01:42:21,296 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 67 [2019-10-15 01:42:21,849 WARN L191 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 98 [2019-10-15 01:42:22,324 WARN L191 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 82 [2019-10-15 01:42:22,569 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2019-10-15 01:42:22,775 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 64 [2019-10-15 01:42:22,991 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 65 [2019-10-15 01:42:23,184 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 58 [2019-10-15 01:42:23,765 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-10-15 01:42:24,081 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 69 [2019-10-15 01:42:27,238 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-15 01:42:27,238 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 12] total 22 [2019-10-15 01:42:27,238 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202974245] [2019-10-15 01:42:27,240 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-15 01:42:27,240 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:42:27,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-15 01:42:27,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2019-10-15 01:42:27,241 INFO L87 Difference]: Start difference. First operand 439 states and 787 transitions. Second operand 22 states. [2019-10-15 01:42:27,546 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2019-10-15 01:42:27,951 WARN L191 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 95 [2019-10-15 01:42:28,472 WARN L191 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 102 [2019-10-15 01:42:29,114 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 97 [2019-10-15 01:42:29,448 WARN L191 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 93 [2019-10-15 01:42:29,785 WARN L191 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 95 [2019-10-15 01:42:29,965 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2019-10-15 01:42:30,162 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2019-10-15 01:42:33,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:42:33,238 INFO L93 Difference]: Finished difference Result 898 states and 1608 transitions. [2019-10-15 01:42:33,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 01:42:33,239 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 147 [2019-10-15 01:42:33,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:42:33,239 INFO L225 Difference]: With dead ends: 898 [2019-10-15 01:42:33,239 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:42:33,244 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 316 SyntacticMatches, 119 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1978 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=282, Invalid=774, Unknown=0, NotChecked=0, Total=1056 [2019-10-15 01:42:33,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:42:33,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:42:33,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:42:33,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:42:33,245 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 147 [2019-10-15 01:42:33,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:42:33,246 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:42:33,246 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-10-15 01:42:33,246 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:42:33,246 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:42:33,447 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:42:33,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:42:33,823 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 89 [2019-10-15 01:42:34,016 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 25 [2019-10-15 01:42:34,293 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 86 [2019-10-15 01:42:34,543 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 86 [2019-10-15 01:42:34,546 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a11~0 |old(~a11~0)|) (= ~z~0 |old(~z~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~v~0 |old(~v~0)|) (= ~a17~0 |old(~a17~0)|) (= ~y~0 |old(~y~0)|) (= ~f~0 |old(~f~0)|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|) (= ~d~0 |old(~d~0)|)) [2019-10-15 01:42:34,547 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:42:34,547 INFO L443 ceAbstractionStarter]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2019-10-15 01:42:34,547 INFO L443 ceAbstractionStarter]: For program point L234(lines 234 413) no Hoare annotation was computed. [2019-10-15 01:42:34,547 INFO L443 ceAbstractionStarter]: For program point L69(lines 69 413) no Hoare annotation was computed. [2019-10-15 01:42:34,547 INFO L443 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 499) no Hoare annotation was computed. [2019-10-15 01:42:34,547 INFO L443 ceAbstractionStarter]: For program point L499(line 499) no Hoare annotation was computed. [2019-10-15 01:42:34,548 INFO L443 ceAbstractionStarter]: For program point L202(lines 202 413) no Hoare annotation was computed. [2019-10-15 01:42:34,548 INFO L443 ceAbstractionStarter]: For program point L169(lines 169 413) no Hoare annotation was computed. [2019-10-15 01:42:34,548 INFO L443 ceAbstractionStarter]: For program point L368(lines 368 413) no Hoare annotation was computed. [2019-10-15 01:42:34,548 INFO L443 ceAbstractionStarter]: For program point L38(lines 38 413) no Hoare annotation was computed. [2019-10-15 01:42:34,548 INFO L443 ceAbstractionStarter]: For program point L402(lines 402 413) no Hoare annotation was computed. [2019-10-15 01:42:34,548 INFO L443 ceAbstractionStarter]: For program point L237(lines 237 413) no Hoare annotation was computed. [2019-10-15 01:42:34,548 INFO L443 ceAbstractionStarter]: For program point L337(lines 337 413) no Hoare annotation was computed. [2019-10-15 01:42:34,549 INFO L443 ceAbstractionStarter]: For program point L139(lines 139 413) no Hoare annotation was computed. [2019-10-15 01:42:34,549 INFO L443 ceAbstractionStarter]: For program point L106(lines 106 413) no Hoare annotation was computed. [2019-10-15 01:42:34,549 INFO L443 ceAbstractionStarter]: For program point L404(lines 404 413) no Hoare annotation was computed. [2019-10-15 01:42:34,549 INFO L443 ceAbstractionStarter]: For program point L74(lines 74 413) no Hoare annotation was computed. [2019-10-15 01:42:34,549 INFO L443 ceAbstractionStarter]: For program point L42(lines 42 413) no Hoare annotation was computed. [2019-10-15 01:42:34,549 INFO L443 ceAbstractionStarter]: For program point L175(lines 175 413) no Hoare annotation was computed. [2019-10-15 01:42:34,549 INFO L443 ceAbstractionStarter]: For program point L407(lines 407 413) no Hoare annotation was computed. [2019-10-15 01:42:34,549 INFO L443 ceAbstractionStarter]: For program point L143(lines 143 413) no Hoare annotation was computed. [2019-10-15 01:42:34,550 INFO L443 ceAbstractionStarter]: For program point L375(lines 375 413) no Hoare annotation was computed. [2019-10-15 01:42:34,550 INFO L443 ceAbstractionStarter]: For program point L309(lines 309 413) no Hoare annotation was computed. [2019-10-15 01:42:34,550 INFO L443 ceAbstractionStarter]: For program point L276(lines 276 413) no Hoare annotation was computed. [2019-10-15 01:42:34,550 INFO L443 ceAbstractionStarter]: For program point L409(lines 409 413) no Hoare annotation was computed. [2019-10-15 01:42:34,550 INFO L443 ceAbstractionStarter]: For program point L212(lines 212 413) no Hoare annotation was computed. [2019-10-15 01:42:34,550 INFO L443 ceAbstractionStarter]: For program point L179(lines 179 413) no Hoare annotation was computed. [2019-10-15 01:42:34,550 INFO L443 ceAbstractionStarter]: For program point L113(lines 113 413) no Hoare annotation was computed. [2019-10-15 01:42:34,550 INFO L443 ceAbstractionStarter]: For program point L47(lines 47 413) no Hoare annotation was computed. [2019-10-15 01:42:34,551 INFO L443 ceAbstractionStarter]: For program point L378(lines 378 413) no Hoare annotation was computed. [2019-10-15 01:42:34,551 INFO L443 ceAbstractionStarter]: For program point L280(lines 280 413) no Hoare annotation was computed. [2019-10-15 01:42:34,551 INFO L443 ceAbstractionStarter]: For program point L148(lines 148 413) no Hoare annotation was computed. [2019-10-15 01:42:34,551 INFO L443 ceAbstractionStarter]: For program point L82(lines 82 413) no Hoare annotation was computed. [2019-10-15 01:42:34,551 INFO L443 ceAbstractionStarter]: For program point L380(lines 380 413) no Hoare annotation was computed. [2019-10-15 01:42:34,551 INFO L443 ceAbstractionStarter]: For program point L314(lines 314 413) no Hoare annotation was computed. [2019-10-15 01:42:34,551 INFO L443 ceAbstractionStarter]: For program point L248(lines 248 413) no Hoare annotation was computed. [2019-10-15 01:42:34,551 INFO L443 ceAbstractionStarter]: For program point L215(lines 215 413) no Hoare annotation was computed. [2019-10-15 01:42:34,552 INFO L443 ceAbstractionStarter]: For program point L50(lines 50 413) no Hoare annotation was computed. [2019-10-15 01:42:34,552 INFO L443 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2019-10-15 01:42:34,552 INFO L443 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2019-10-15 01:42:34,552 INFO L443 ceAbstractionStarter]: For program point L349(lines 349 413) no Hoare annotation was computed. [2019-10-15 01:42:34,552 INFO L443 ceAbstractionStarter]: For program point L283(lines 283 413) no Hoare annotation was computed. [2019-10-15 01:42:34,552 INFO L443 ceAbstractionStarter]: For program point L218(lines 218 413) no Hoare annotation was computed. [2019-10-15 01:42:34,552 INFO L443 ceAbstractionStarter]: For program point L185(lines 185 413) no Hoare annotation was computed. [2019-10-15 01:42:34,553 INFO L443 ceAbstractionStarter]: For program point L119(lines 119 413) no Hoare annotation was computed. [2019-10-15 01:42:34,553 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 413) no Hoare annotation was computed. [2019-10-15 01:42:34,553 INFO L443 ceAbstractionStarter]: For program point L286(lines 286 413) no Hoare annotation was computed. [2019-10-15 01:42:34,553 INFO L443 ceAbstractionStarter]: For program point L253(lines 253 413) no Hoare annotation was computed. [2019-10-15 01:42:34,553 INFO L443 ceAbstractionStarter]: For program point L187(lines 187 413) no Hoare annotation was computed. [2019-10-15 01:42:34,553 INFO L443 ceAbstractionStarter]: For program point L154(lines 154 413) no Hoare annotation was computed. [2019-10-15 01:42:34,553 INFO L443 ceAbstractionStarter]: For program point L354(lines 354 413) no Hoare annotation was computed. [2019-10-15 01:42:34,553 INFO L443 ceAbstractionStarter]: For program point L189(lines 189 413) no Hoare annotation was computed. [2019-10-15 01:42:34,554 INFO L443 ceAbstractionStarter]: For program point L123(lines 123 413) no Hoare annotation was computed. [2019-10-15 01:42:34,554 INFO L443 ceAbstractionStarter]: For program point L223(lines 223 413) no Hoare annotation was computed. [2019-10-15 01:42:34,554 INFO L443 ceAbstractionStarter]: For program point L91(lines 91 413) no Hoare annotation was computed. [2019-10-15 01:42:34,554 INFO L443 ceAbstractionStarter]: For program point L389(lines 389 413) no Hoare annotation was computed. [2019-10-15 01:42:34,554 INFO L443 ceAbstractionStarter]: For program point L191(lines 191 413) no Hoare annotation was computed. [2019-10-15 01:42:34,554 INFO L443 ceAbstractionStarter]: For program point L59(lines 59 413) no Hoare annotation was computed. [2019-10-15 01:42:34,554 INFO L439 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse0 (not (<= |old(~a17~0)| 8))) (.cse1 (and (= ~a11~0 |old(~a11~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)))) (and (or (not (<= 8 |old(~a17~0)|)) .cse0 .cse1) (or .cse0 .cse1 (= 8 |old(~a28~0)|)))) [2019-10-15 01:42:34,555 INFO L443 ceAbstractionStarter]: For program point L291(lines 291 413) no Hoare annotation was computed. [2019-10-15 01:42:34,555 INFO L443 ceAbstractionStarter]: For program point L225(lines 225 413) no Hoare annotation was computed. [2019-10-15 01:42:34,555 INFO L443 ceAbstractionStarter]: For program point L159(lines 159 413) no Hoare annotation was computed. [2019-10-15 01:42:34,555 INFO L443 ceAbstractionStarter]: For program point L259(lines 259 413) no Hoare annotation was computed. [2019-10-15 01:42:34,555 INFO L443 ceAbstractionStarter]: For program point L293(lines 293 413) no Hoare annotation was computed. [2019-10-15 01:42:34,555 INFO L443 ceAbstractionStarter]: For program point L194(lines 194 413) no Hoare annotation was computed. [2019-10-15 01:42:34,555 INFO L443 ceAbstractionStarter]: For program point L95(lines 95 413) no Hoare annotation was computed. [2019-10-15 01:42:34,556 INFO L443 ceAbstractionStarter]: For program point L261(lines 261 413) no Hoare annotation was computed. [2019-10-15 01:42:34,556 INFO L443 ceAbstractionStarter]: For program point L30(lines 30 413) no Hoare annotation was computed. [2019-10-15 01:42:34,556 INFO L443 ceAbstractionStarter]: For program point L394(lines 394 413) no Hoare annotation was computed. [2019-10-15 01:42:34,556 INFO L443 ceAbstractionStarter]: For program point L361(lines 361 413) no Hoare annotation was computed. [2019-10-15 01:42:34,556 INFO L443 ceAbstractionStarter]: For program point L328(lines 328 413) no Hoare annotation was computed. [2019-10-15 01:42:34,556 INFO L443 ceAbstractionStarter]: For program point L130(lines 130 413) no Hoare annotation was computed. [2019-10-15 01:42:34,556 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 413) no Hoare annotation was computed. [2019-10-15 01:42:34,557 INFO L443 ceAbstractionStarter]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2019-10-15 01:42:34,557 INFO L443 ceAbstractionStarter]: For program point L297(lines 297 413) no Hoare annotation was computed. [2019-10-15 01:42:34,557 INFO L443 ceAbstractionStarter]: For program point L198(lines 198 413) no Hoare annotation was computed. [2019-10-15 01:42:34,557 INFO L443 ceAbstractionStarter]: For program point L165(lines 165 413) no Hoare annotation was computed. [2019-10-15 01:42:34,557 INFO L443 ceAbstractionStarter]: For program point L99(lines 99 413) no Hoare annotation was computed. [2019-10-15 01:42:34,557 INFO L443 ceAbstractionStarter]: For program point L331(lines 331 413) no Hoare annotation was computed. [2019-10-15 01:42:34,557 INFO L443 ceAbstractionStarter]: For program point L232(lines 232 413) no Hoare annotation was computed. [2019-10-15 01:42:34,557 INFO L443 ceAbstractionStarter]: For program point L398(lines 398 413) no Hoare annotation was computed. [2019-10-15 01:42:34,558 INFO L443 ceAbstractionStarter]: For program point L134(lines 134 413) no Hoare annotation was computed. [2019-10-15 01:42:34,558 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 413) no Hoare annotation was computed. [2019-10-15 01:42:34,558 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:42:34,558 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 21 ~u~0) (<= 1 ~a21~0) (= 22 ~v~0) (<= 25 ~y~0) (= 3 ~c~0) (<= ~y~0 25) (= 24 ~x~0) (<= 23 ~w~0) (<= ~a21~0 1) (= 6 ~f~0) (= 26 ~z~0) (= 1 ~a~0) (= ~a11~0 0) (= 4 ~d~0) (= ~a25~0 0) (= ~a17~0 8) (= ~a19~0 1) (= ~a28~0 7) (<= ~w~0 23) (<= ~e~0 5) (<= 5 ~e~0)) [2019-10-15 01:42:34,558 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:42:34,558 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:42:34,559 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= |old(~a19~0)| 1)) (not (= 7 |old(~a28~0)|)) (not (= 4 ~d~0)) (not (= 21 ~u~0)) (not (<= ~e~0 5)) (not (<= |old(~a11~0)| 0)) (not (= 22 ~v~0)) (not (= 1 ~a~0)) (not (<= 1 |old(~a19~0)|)) (not (<= 0 |old(~a11~0)|)) (not (<= ~a21~0 1)) (not (<= 23 ~w~0)) (not (= 0 |old(~a25~0)|)) (not (= 3 ~c~0)) (and (= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a19~0 |old(~a19~0)|)) (not (<= ~w~0 23)) (not (<= 5 ~e~0)) (not (<= 1 ~a21~0)) (not (<= 25 ~y~0)) (not (= 26 ~z~0)) (not (<= ~y~0 25)) (not (= 24 ~x~0)) (not (= 8 |old(~a17~0)|)) (not (= 6 ~f~0))) [2019-10-15 01:42:34,559 INFO L439 ceAbstractionStarter]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (not (<= |old(~a19~0)| 1)) (not (= 7 |old(~a28~0)|)) (not (= 4 ~d~0)) (not (= 21 ~u~0)) (not (<= ~e~0 5)) (not (<= |old(~a11~0)| 0)) (not (= 22 ~v~0)) (not (= 1 ~a~0)) (not (<= 1 |old(~a19~0)|)) (not (<= 0 |old(~a11~0)|)) (not (<= ~a21~0 1)) (not (<= 23 ~w~0)) (not (= 0 |old(~a25~0)|)) (and (not (= 8 ~a28~0)) .cse0) (not (= 3 ~c~0)) (not (<= ~w~0 23)) (not (<= 5 ~e~0)) (not (<= 1 ~a21~0)) (not (<= 25 ~y~0)) (not (= 26 ~z~0)) (not (<= ~y~0 25)) (not (= 24 ~x~0)) (not (= 8 |old(~a17~0)|)) (not (= 6 ~f~0)) (and (<= 8 ~a17~0) .cse0))) [2019-10-15 01:42:34,559 INFO L443 ceAbstractionStarter]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2019-10-15 01:42:34,559 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2019-10-15 01:42:34,560 INFO L439 ceAbstractionStarter]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (not (<= |old(~a19~0)| 1)) (not (= 7 |old(~a28~0)|)) (not (= 4 ~d~0)) (not (= 21 ~u~0)) (not (<= ~e~0 5)) (not (<= |old(~a11~0)| 0)) (not (= 22 ~v~0)) (not (= 1 ~a~0)) (not (<= 1 |old(~a19~0)|)) (not (<= 0 |old(~a11~0)|)) (not (<= ~a21~0 1)) (not (<= 23 ~w~0)) (not (= 0 |old(~a25~0)|)) (and (not (= 8 ~a28~0)) .cse0) (not (= 3 ~c~0)) (not (<= ~w~0 23)) (not (<= 5 ~e~0)) (not (<= 1 ~a21~0)) (not (<= 25 ~y~0)) (not (= 26 ~z~0)) (not (<= ~y~0 25)) (not (= 24 ~x~0)) (not (= 8 |old(~a17~0)|)) (not (= 6 ~f~0)) (and (<= 8 ~a17~0) .cse0))) [2019-10-15 01:42:34,560 INFO L443 ceAbstractionStarter]: For program point L614-1(line 614) no Hoare annotation was computed. [2019-10-15 01:42:34,560 INFO L443 ceAbstractionStarter]: For program point L611(line 611) no Hoare annotation was computed. [2019-10-15 01:42:34,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:42:34 BoogieIcfgContainer [2019-10-15 01:42:34,584 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:42:34,586 INFO L168 Benchmark]: Toolchain (without parser) took 25492.33 ms. Allocated memory was 138.9 MB in the beginning and 661.7 MB in the end (delta: 522.7 MB). Free memory was 102.4 MB in the beginning and 217.9 MB in the end (delta: -115.5 MB). Peak memory consumption was 407.2 MB. Max. memory is 7.1 GB. [2019-10-15 01:42:34,587 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 01:42:34,588 INFO L168 Benchmark]: CACSL2BoogieTranslator took 696.36 ms. Allocated memory was 138.9 MB in the beginning and 206.0 MB in the end (delta: 67.1 MB). Free memory was 102.2 MB in the beginning and 172.4 MB in the end (delta: -70.2 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. [2019-10-15 01:42:34,589 INFO L168 Benchmark]: Boogie Preprocessor took 121.30 ms. Allocated memory is still 206.0 MB. Free memory was 172.4 MB in the beginning and 167.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2019-10-15 01:42:34,590 INFO L168 Benchmark]: RCFGBuilder took 2200.77 ms. Allocated memory was 206.0 MB in the beginning and 251.7 MB in the end (delta: 45.6 MB). Free memory was 167.6 MB in the beginning and 204.1 MB in the end (delta: -36.5 MB). Peak memory consumption was 118.1 MB. Max. memory is 7.1 GB. [2019-10-15 01:42:34,591 INFO L168 Benchmark]: TraceAbstraction took 22468.69 ms. Allocated memory was 251.7 MB in the beginning and 661.7 MB in the end (delta: 410.0 MB). Free memory was 204.1 MB in the beginning and 217.9 MB in the end (delta: -13.8 MB). Peak memory consumption was 396.2 MB. Max. memory is 7.1 GB. [2019-10-15 01:42:34,595 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 696.36 ms. Allocated memory was 138.9 MB in the beginning and 206.0 MB in the end (delta: 67.1 MB). Free memory was 102.2 MB in the beginning and 172.4 MB in the end (delta: -70.2 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.30 ms. Allocated memory is still 206.0 MB. Free memory was 172.4 MB in the beginning and 167.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2200.77 ms. Allocated memory was 206.0 MB in the beginning and 251.7 MB in the end (delta: 45.6 MB). Free memory was 167.6 MB in the beginning and 204.1 MB in the end (delta: -36.5 MB). Peak memory consumption was 118.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22468.69 ms. Allocated memory was 251.7 MB in the beginning and 661.7 MB in the end (delta: 410.0 MB). Free memory was 204.1 MB in the beginning and 217.9 MB in the end (delta: -13.8 MB). Peak memory consumption was 396.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 499]: 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: (((((((((((((((((((((((!(\old(a19) <= 1) || !(7 == \old(a28))) || !(4 == d)) || !(21 == u)) || !(e <= 5)) || !(\old(a11) <= 0)) || !(22 == v)) || !(1 == a)) || !(1 <= \old(a19))) || !(0 <= \old(a11))) || !(a21 <= 1)) || !(23 <= w)) || !(0 == \old(a25))) || (!(8 == a28) && a17 <= 8)) || !(3 == c)) || !(w <= 23)) || !(5 <= e)) || !(1 <= a21)) || !(25 <= y)) || !(26 == z)) || !(y <= 25)) || !(24 == x)) || !(8 == \old(a17))) || !(6 == f)) || (8 <= a17 && a17 <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 95 locations, 1 error locations. Result: SAFE, OverallTime: 22.3s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, HoareTripleCheckerStatistics: 77 SDtfs, 1395 SDslu, 81 SDs, 0 SdLazy, 2837 SolverSat, 763 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 697 GetRequests, 531 SyntacticMatches, 124 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1982 ImplicationChecksByTransitivity, 9.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=439occurred 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, 176 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 22 PreInvPairs, 38 NumberOfFragments, 492 HoareAnnotationTreeSize, 22 FomulaSimplifications, 520 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1456 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 694 NumberOfCodeBlocks, 694 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 938 ConstructedInterpolants, 0 QuantifiedInterpolants, 297951 SizeOfPredicates, 2 NumberOfNonLiveVariables, 749 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 257/285 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 4697, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 155, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 135, TOOLS_POST_TIME[ms]: 62, TOOLS_POST_CALL_APPLICATIONS: 11, TOOLS_POST_CALL_TIME[ms]: 49, TOOLS_POST_RETURN_APPLICATIONS: 8, TOOLS_POST_RETURN_TIME[ms]: 55, TOOLS_QUANTIFIERELIM_APPLICATIONS: 153, TOOLS_QUANTIFIERELIM_TIME[ms]: 107, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 13, FLUID_QUERY_TIME[ms]: 11, FLUID_QUERIES: 157, FLUID_YES_ANSWERS: 56, DOMAIN_JOIN_APPLICATIONS: 109, DOMAIN_JOIN_TIME[ms]: 3470, DOMAIN_ALPHA_APPLICATIONS: 56, DOMAIN_ALPHA_TIME[ms]: 769, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 103, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 4, DOMAIN_ISBOTTOM_APPLICATIONS: 10, DOMAIN_ISBOTTOM_TIME[ms]: 28, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 856, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 855, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 8, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 273, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 270, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 15, REGEX_TO_DAG_TIME[ms]: 12, DAG_COMPRESSION_TIME[ms]: 48, DAG_COMPRESSION_PROCESSED_NODES: 3397, DAG_COMPRESSION_RETAINED_NODES: 210, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...