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/psyco/psyco_io_1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:24:18,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:24:18,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:24:18,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:24:18,703 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:24:18,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:24:18,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:24:18,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:24:18,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:24:18,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:24:18,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:24:18,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:24:18,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:24:18,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:24:18,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:24:18,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:24:18,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:24:18,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:24:18,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:24:18,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:24:18,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:24:18,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:24:18,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:24:18,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:24:18,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 03:24:18,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:24:18,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:24:18,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:24:18,753 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 03:24:18,767 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:24:18,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:24:18,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:24:18,769 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:24:18,769 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:24:18,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:24:18,770 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:24:18,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:24:18,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:24:18,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:24:18,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:24:18,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:24:18,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:24:18,771 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:24:18,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:24:18,772 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:24:18,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:24:18,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:24:18,772 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:24:18,772 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:24:18,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:24:18,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:24:18,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:24:18,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:24:18,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:24:18,774 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:24:18,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:24:18,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:24:18,774 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 03:24:19,089 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:24:19,103 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:24:19,107 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:24:19,108 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:24:19,109 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:24:19,110 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_io_1.c [2019-10-15 03:24:19,197 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45b17c4d7/378d0a2f62d34dd185b02abb8ee8ccb3/FLAG1eed246a6 [2019-10-15 03:24:19,726 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:24:19,727 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_io_1.c [2019-10-15 03:24:19,737 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45b17c4d7/378d0a2f62d34dd185b02abb8ee8ccb3/FLAG1eed246a6 [2019-10-15 03:24:20,049 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45b17c4d7/378d0a2f62d34dd185b02abb8ee8ccb3 [2019-10-15 03:24:20,060 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:24:20,062 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:24:20,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:24:20,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:24:20,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:24:20,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:24:20" (1/1) ... [2019-10-15 03:24:20,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cbbe729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:24:20, skipping insertion in model container [2019-10-15 03:24:20,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:24:20" (1/1) ... [2019-10-15 03:24:20,081 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:24:20,129 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:24:20,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:24:20,405 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:24:20,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:24:20,587 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:24:20,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:24:20 WrapperNode [2019-10-15 03:24:20,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:24:20,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:24:20,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:24:20,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:24:20,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:24:20" (1/1) ... [2019-10-15 03:24:20,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:24:20" (1/1) ... [2019-10-15 03:24:20,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:24:20" (1/1) ... [2019-10-15 03:24:20,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:24:20" (1/1) ... [2019-10-15 03:24:20,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:24:20" (1/1) ... [2019-10-15 03:24:20,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:24:20" (1/1) ... [2019-10-15 03:24:20,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:24:20" (1/1) ... [2019-10-15 03:24:20,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:24:20,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:24:20,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:24:20,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:24:20,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:24:20" (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 03:24:20,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:24:20,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:24:20,762 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:24:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:24:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:24:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:24:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:24:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:24:21,265 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:24:21,265 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 03:24:21,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:24:21 BoogieIcfgContainer [2019-10-15 03:24:21,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:24:21,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:24:21,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:24:21,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:24:21,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:24:20" (1/3) ... [2019-10-15 03:24:21,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8f4b5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:24:21, skipping insertion in model container [2019-10-15 03:24:21,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:24:20" (2/3) ... [2019-10-15 03:24:21,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8f4b5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:24:21, skipping insertion in model container [2019-10-15 03:24:21,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:24:21" (3/3) ... [2019-10-15 03:24:21,276 INFO L109 eAbstractionObserver]: Analyzing ICFG psyco_io_1.c [2019-10-15 03:24:21,286 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:24:21,294 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:24:21,307 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:24:21,335 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:24:21,335 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:24:21,335 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:24:21,335 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:24:21,336 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:24:21,336 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:24:21,336 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:24:21,337 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:24:21,359 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2019-10-15 03:24:21,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-15 03:24:21,365 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:24:21,366 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:24:21,368 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:24:21,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:24:21,373 INFO L82 PathProgramCache]: Analyzing trace with hash 938862966, now seen corresponding path program 1 times [2019-10-15 03:24:21,381 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:24:21,381 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864060287] [2019-10-15 03:24:21,382 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:21,382 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:21,382 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:24:21,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:24:21,535 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 03:24:21,536 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864060287] [2019-10-15 03:24:21,537 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:24:21,538 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:24:21,538 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961372514] [2019-10-15 03:24:21,543 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:24:21,544 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:24:21,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:24:21,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:24:21,562 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 2 states. [2019-10-15 03:24:21,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:24:21,593 INFO L93 Difference]: Finished difference Result 135 states and 249 transitions. [2019-10-15 03:24:21,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:24:21,594 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-10-15 03:24:21,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:24:21,605 INFO L225 Difference]: With dead ends: 135 [2019-10-15 03:24:21,605 INFO L226 Difference]: Without dead ends: 60 [2019-10-15 03:24:21,609 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:24:21,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-10-15 03:24:21,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2019-10-15 03:24:21,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-10-15 03:24:21,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 90 transitions. [2019-10-15 03:24:21,655 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 90 transitions. Word has length 12 [2019-10-15 03:24:21,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:24:21,656 INFO L462 AbstractCegarLoop]: Abstraction has 60 states and 90 transitions. [2019-10-15 03:24:21,656 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:24:21,656 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 90 transitions. [2019-10-15 03:24:21,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-15 03:24:21,657 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:24:21,658 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:24:21,658 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:24:21,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:24:21,659 INFO L82 PathProgramCache]: Analyzing trace with hash -427525637, now seen corresponding path program 1 times [2019-10-15 03:24:21,659 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:24:21,659 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209360864] [2019-10-15 03:24:21,659 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:21,660 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:21,660 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:24:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:24:21,730 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 03:24:21,731 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209360864] [2019-10-15 03:24:21,731 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:24:21,731 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:24:21,732 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335086133] [2019-10-15 03:24:21,738 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:24:21,738 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:24:21,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:24:21,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:24:21,739 INFO L87 Difference]: Start difference. First operand 60 states and 90 transitions. Second operand 3 states. [2019-10-15 03:24:21,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:24:21,825 INFO L93 Difference]: Finished difference Result 118 states and 179 transitions. [2019-10-15 03:24:21,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:24:21,826 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-10-15 03:24:21,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:24:21,828 INFO L225 Difference]: With dead ends: 118 [2019-10-15 03:24:21,828 INFO L226 Difference]: Without dead ends: 63 [2019-10-15 03:24:21,829 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:24:21,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-10-15 03:24:21,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2019-10-15 03:24:21,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-10-15 03:24:21,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 93 transitions. [2019-10-15 03:24:21,839 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 93 transitions. Word has length 13 [2019-10-15 03:24:21,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:24:21,840 INFO L462 AbstractCegarLoop]: Abstraction has 63 states and 93 transitions. [2019-10-15 03:24:21,840 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:24:21,840 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 93 transitions. [2019-10-15 03:24:21,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-15 03:24:21,841 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:24:21,841 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:24:21,842 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:24:21,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:24:21,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1823893817, now seen corresponding path program 1 times [2019-10-15 03:24:21,843 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:24:21,843 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833336236] [2019-10-15 03:24:21,843 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:21,843 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:21,844 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:24:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:24:21,903 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:24:21,903 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833336236] [2019-10-15 03:24:21,903 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:24:21,904 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:24:21,904 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459255787] [2019-10-15 03:24:21,904 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:24:21,905 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:24:21,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:24:21,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:24:21,905 INFO L87 Difference]: Start difference. First operand 63 states and 93 transitions. Second operand 3 states. [2019-10-15 03:24:21,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:24:21,977 INFO L93 Difference]: Finished difference Result 112 states and 168 transitions. [2019-10-15 03:24:21,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:24:21,979 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-10-15 03:24:21,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:24:21,982 INFO L225 Difference]: With dead ends: 112 [2019-10-15 03:24:21,982 INFO L226 Difference]: Without dead ends: 55 [2019-10-15 03:24:21,983 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:24:21,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-10-15 03:24:21,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2019-10-15 03:24:21,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-10-15 03:24:21,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions. [2019-10-15 03:24:21,998 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 79 transitions. Word has length 18 [2019-10-15 03:24:21,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:24:21,999 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 79 transitions. [2019-10-15 03:24:21,999 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:24:21,999 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions. [2019-10-15 03:24:22,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-15 03:24:22,001 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:24:22,001 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:24:22,001 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:24:22,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:24:22,002 INFO L82 PathProgramCache]: Analyzing trace with hash -229892154, now seen corresponding path program 1 times [2019-10-15 03:24:22,002 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:24:22,003 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076102107] [2019-10-15 03:24:22,003 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:22,003 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:22,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:24:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:24:22,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:24:22,121 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076102107] [2019-10-15 03:24:22,121 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:24:22,121 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:24:22,121 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667561656] [2019-10-15 03:24:22,123 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:24:22,124 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:24:22,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:24:22,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:24:22,125 INFO L87 Difference]: Start difference. First operand 55 states and 79 transitions. Second operand 3 states. [2019-10-15 03:24:22,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:24:22,209 INFO L93 Difference]: Finished difference Result 139 states and 209 transitions. [2019-10-15 03:24:22,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:24:22,210 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-10-15 03:24:22,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:24:22,212 INFO L225 Difference]: With dead ends: 139 [2019-10-15 03:24:22,212 INFO L226 Difference]: Without dead ends: 93 [2019-10-15 03:24:22,213 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:24:22,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-10-15 03:24:22,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 90. [2019-10-15 03:24:22,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-10-15 03:24:22,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 131 transitions. [2019-10-15 03:24:22,224 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 131 transitions. Word has length 23 [2019-10-15 03:24:22,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:24:22,225 INFO L462 AbstractCegarLoop]: Abstraction has 90 states and 131 transitions. [2019-10-15 03:24:22,225 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:24:22,225 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 131 transitions. [2019-10-15 03:24:22,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-15 03:24:22,226 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:24:22,227 INFO L380 BasicCegarLoop]: trace histogram [2, 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 03:24:22,227 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:24:22,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:24:22,228 INFO L82 PathProgramCache]: Analyzing trace with hash -566484954, now seen corresponding path program 1 times [2019-10-15 03:24:22,228 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:24:22,228 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936362184] [2019-10-15 03:24:22,228 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:22,229 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:22,229 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:24:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:24:22,269 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:24:22,270 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936362184] [2019-10-15 03:24:22,270 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:24:22,271 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:24:22,271 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594821758] [2019-10-15 03:24:22,272 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:24:22,272 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:24:22,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:24:22,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:24:22,273 INFO L87 Difference]: Start difference. First operand 90 states and 131 transitions. Second operand 3 states. [2019-10-15 03:24:22,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:24:22,310 INFO L93 Difference]: Finished difference Result 179 states and 261 transitions. [2019-10-15 03:24:22,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:24:22,311 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-15 03:24:22,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:24:22,313 INFO L225 Difference]: With dead ends: 179 [2019-10-15 03:24:22,313 INFO L226 Difference]: Without dead ends: 100 [2019-10-15 03:24:22,314 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:24:22,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-10-15 03:24:22,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 98. [2019-10-15 03:24:22,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-10-15 03:24:22,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 139 transitions. [2019-10-15 03:24:22,326 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 139 transitions. Word has length 24 [2019-10-15 03:24:22,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:24:22,326 INFO L462 AbstractCegarLoop]: Abstraction has 98 states and 139 transitions. [2019-10-15 03:24:22,326 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:24:22,327 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 139 transitions. [2019-10-15 03:24:22,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-15 03:24:22,328 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:24:22,328 INFO L380 BasicCegarLoop]: trace histogram [3, 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] [2019-10-15 03:24:22,329 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:24:22,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:24:22,329 INFO L82 PathProgramCache]: Analyzing trace with hash 357038310, now seen corresponding path program 1 times [2019-10-15 03:24:22,330 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:24:22,330 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688100277] [2019-10-15 03:24:22,330 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:22,330 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:22,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:24:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:24:22,427 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:24:22,427 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688100277] [2019-10-15 03:24:22,428 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:24:22,428 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:24:22,428 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170110617] [2019-10-15 03:24:22,429 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:24:22,429 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:24:22,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:24:22,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:24:22,430 INFO L87 Difference]: Start difference. First operand 98 states and 139 transitions. Second operand 3 states. [2019-10-15 03:24:22,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:24:22,457 INFO L93 Difference]: Finished difference Result 163 states and 233 transitions. [2019-10-15 03:24:22,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:24:22,458 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2019-10-15 03:24:22,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:24:22,459 INFO L225 Difference]: With dead ends: 163 [2019-10-15 03:24:22,459 INFO L226 Difference]: Without dead ends: 76 [2019-10-15 03:24:22,460 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:24:22,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-10-15 03:24:22,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2019-10-15 03:24:22,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-10-15 03:24:22,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 104 transitions. [2019-10-15 03:24:22,468 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 104 transitions. Word has length 35 [2019-10-15 03:24:22,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:24:22,469 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 104 transitions. [2019-10-15 03:24:22,469 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:24:22,469 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 104 transitions. [2019-10-15 03:24:22,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-10-15 03:24:22,471 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:24:22,471 INFO L380 BasicCegarLoop]: trace histogram [3, 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] [2019-10-15 03:24:22,471 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:24:22,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:24:22,472 INFO L82 PathProgramCache]: Analyzing trace with hash 448490246, now seen corresponding path program 1 times [2019-10-15 03:24:22,472 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:24:22,472 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189657410] [2019-10-15 03:24:22,473 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:22,473 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:24:22,473 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:24:22,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:24:22,566 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:24:22,567 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189657410] [2019-10-15 03:24:22,567 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:24:22,568 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 03:24:22,568 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552173546] [2019-10-15 03:24:22,568 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:24:22,568 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:24:22,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:24:22,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:24:22,569 INFO L87 Difference]: Start difference. First operand 76 states and 104 transitions. Second operand 4 states. [2019-10-15 03:24:22,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:24:22,621 INFO L93 Difference]: Finished difference Result 79 states and 107 transitions. [2019-10-15 03:24:22,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:24:22,621 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2019-10-15 03:24:22,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:24:22,622 INFO L225 Difference]: With dead ends: 79 [2019-10-15 03:24:22,622 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 03:24:22,623 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:24:22,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 03:24:22,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 03:24:22,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 03:24:22,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 03:24:22,624 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2019-10-15 03:24:22,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:24:22,624 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 03:24:22,624 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 03:24:22,624 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 03:24:22,625 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 03:24:22,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 03:24:22,724 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 03:24:22,724 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:24:22,724 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:24:22,724 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 03:24:22,725 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 03:24:22,725 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 03:24:22,725 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 13 344) no Hoare annotation was computed. [2019-10-15 03:24:22,725 INFO L443 ceAbstractionStarter]: For program point L36(lines 36 47) no Hoare annotation was computed. [2019-10-15 03:24:22,725 INFO L443 ceAbstractionStarter]: For program point L86(lines 86 101) no Hoare annotation was computed. [2019-10-15 03:24:22,725 INFO L443 ceAbstractionStarter]: For program point L53(lines 53 104) no Hoare annotation was computed. [2019-10-15 03:24:22,725 INFO L443 ceAbstractionStarter]: For program point L202(lines 202 217) no Hoare annotation was computed. [2019-10-15 03:24:22,726 INFO L443 ceAbstractionStarter]: For program point L70(lines 70 85) no Hoare annotation was computed. [2019-10-15 03:24:22,726 INFO L443 ceAbstractionStarter]: For program point L318(lines 318 333) no Hoare annotation was computed. [2019-10-15 03:24:22,726 INFO L443 ceAbstractionStarter]: For program point L186(lines 186 201) no Hoare annotation was computed. [2019-10-15 03:24:22,726 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 69) no Hoare annotation was computed. [2019-10-15 03:24:22,726 INFO L439 ceAbstractionStarter]: At program point L335(lines 23 339) the Hoare annotation is: (let ((.cse0 (= main_~this_sink~0 0))) (or (and (= 2 main_~q~0) .cse0) (and (= main_~q~0 0) .cse0) (and (<= 3 main_~q~0) (not .cse0)))) [2019-10-15 03:24:22,726 INFO L443 ceAbstractionStarter]: For program point L302(lines 302 317) no Hoare annotation was computed. [2019-10-15 03:24:22,726 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 13 344) no Hoare annotation was computed. [2019-10-15 03:24:22,727 INFO L443 ceAbstractionStarter]: For program point L170(lines 170 185) no Hoare annotation was computed. [2019-10-15 03:24:22,727 INFO L443 ceAbstractionStarter]: For program point L286(lines 286 301) no Hoare annotation was computed. [2019-10-15 03:24:22,727 INFO L443 ceAbstractionStarter]: For program point L154(lines 154 169) no Hoare annotation was computed. [2019-10-15 03:24:22,727 INFO L443 ceAbstractionStarter]: For program point L88(lines 88 99) no Hoare annotation was computed. [2019-10-15 03:24:22,727 INFO L443 ceAbstractionStarter]: For program point L270(lines 270 285) no Hoare annotation was computed. [2019-10-15 03:24:22,727 INFO L443 ceAbstractionStarter]: For program point L204(lines 204 215) no Hoare annotation was computed. [2019-10-15 03:24:22,727 INFO L443 ceAbstractionStarter]: For program point L138(lines 138 153) no Hoare annotation was computed. [2019-10-15 03:24:22,727 INFO L443 ceAbstractionStarter]: For program point L105(lines 105 220) no Hoare annotation was computed. [2019-10-15 03:24:22,728 INFO L443 ceAbstractionStarter]: For program point L72(lines 72 83) no Hoare annotation was computed. [2019-10-15 03:24:22,728 INFO L443 ceAbstractionStarter]: For program point L320(lines 320 331) no Hoare annotation was computed. [2019-10-15 03:24:22,728 INFO L443 ceAbstractionStarter]: For program point L254(lines 254 269) no Hoare annotation was computed. [2019-10-15 03:24:22,728 INFO L443 ceAbstractionStarter]: For program point L221(lines 221 336) no Hoare annotation was computed. [2019-10-15 03:24:22,728 INFO L443 ceAbstractionStarter]: For program point L188(lines 188 199) no Hoare annotation was computed. [2019-10-15 03:24:22,728 INFO L443 ceAbstractionStarter]: For program point L122(lines 122 137) no Hoare annotation was computed. [2019-10-15 03:24:22,728 INFO L443 ceAbstractionStarter]: For program point L56(lines 56 67) no Hoare annotation was computed. [2019-10-15 03:24:22,729 INFO L439 ceAbstractionStarter]: At program point L23-2(lines 23 339) the Hoare annotation is: (let ((.cse0 (= main_~this_sink~0 0))) (or (and (= main_~q~0 0) .cse0) (and (<= 3 main_~q~0) (not .cse0)))) [2019-10-15 03:24:22,729 INFO L443 ceAbstractionStarter]: For program point L23-3(lines 23 339) no Hoare annotation was computed. [2019-10-15 03:24:22,729 INFO L443 ceAbstractionStarter]: For program point L304(lines 304 315) no Hoare annotation was computed. [2019-10-15 03:24:22,729 INFO L443 ceAbstractionStarter]: For program point L238(lines 238 253) no Hoare annotation was computed. [2019-10-15 03:24:22,729 INFO L443 ceAbstractionStarter]: For program point L172(lines 172 183) no Hoare annotation was computed. [2019-10-15 03:24:22,729 INFO L443 ceAbstractionStarter]: For program point L106(lines 106 121) no Hoare annotation was computed. [2019-10-15 03:24:22,730 INFO L443 ceAbstractionStarter]: For program point L40(lines 40 42) no Hoare annotation was computed. [2019-10-15 03:24:22,730 INFO L443 ceAbstractionStarter]: For program point L288(lines 288 299) no Hoare annotation was computed. [2019-10-15 03:24:22,730 INFO L443 ceAbstractionStarter]: For program point L222(lines 222 237) no Hoare annotation was computed. [2019-10-15 03:24:22,730 INFO L443 ceAbstractionStarter]: For program point L156(lines 156 167) no Hoare annotation was computed. [2019-10-15 03:24:22,730 INFO L443 ceAbstractionStarter]: For program point L272(lines 272 283) no Hoare annotation was computed. [2019-10-15 03:24:22,730 INFO L443 ceAbstractionStarter]: For program point L140(lines 140 151) no Hoare annotation was computed. [2019-10-15 03:24:22,730 INFO L443 ceAbstractionStarter]: For program point L256(lines 256 267) no Hoare annotation was computed. [2019-10-15 03:24:22,730 INFO L443 ceAbstractionStarter]: For program point L124(lines 124 135) no Hoare annotation was computed. [2019-10-15 03:24:22,731 INFO L443 ceAbstractionStarter]: For program point L240(lines 240 251) no Hoare annotation was computed. [2019-10-15 03:24:22,731 INFO L443 ceAbstractionStarter]: For program point L108(lines 108 119) no Hoare annotation was computed. [2019-10-15 03:24:22,731 INFO L443 ceAbstractionStarter]: For program point L224(lines 224 235) no Hoare annotation was computed. [2019-10-15 03:24:22,731 INFO L443 ceAbstractionStarter]: For program point L92(lines 92 94) no Hoare annotation was computed. [2019-10-15 03:24:22,731 INFO L443 ceAbstractionStarter]: For program point L208(lines 208 210) no Hoare annotation was computed. [2019-10-15 03:24:22,731 INFO L443 ceAbstractionStarter]: For program point L76(lines 76 78) no Hoare annotation was computed. [2019-10-15 03:24:22,731 INFO L443 ceAbstractionStarter]: For program point L324(lines 324 326) no Hoare annotation was computed. [2019-10-15 03:24:22,732 INFO L443 ceAbstractionStarter]: For program point L192(lines 192 194) no Hoare annotation was computed. [2019-10-15 03:24:22,732 INFO L443 ceAbstractionStarter]: For program point L60(lines 60 62) no Hoare annotation was computed. [2019-10-15 03:24:22,732 INFO L443 ceAbstractionStarter]: For program point L308(lines 308 310) no Hoare annotation was computed. [2019-10-15 03:24:22,732 INFO L443 ceAbstractionStarter]: For program point L176(lines 176 178) no Hoare annotation was computed. [2019-10-15 03:24:22,732 INFO L439 ceAbstractionStarter]: At program point L325(lines 13 344) the Hoare annotation is: false [2019-10-15 03:24:22,732 INFO L443 ceAbstractionStarter]: For program point L292(lines 292 294) no Hoare annotation was computed. [2019-10-15 03:24:22,732 INFO L443 ceAbstractionStarter]: For program point L160(lines 160 162) no Hoare annotation was computed. [2019-10-15 03:24:22,733 INFO L443 ceAbstractionStarter]: For program point L276(lines 276 278) no Hoare annotation was computed. [2019-10-15 03:24:22,733 INFO L443 ceAbstractionStarter]: For program point L144(lines 144 146) no Hoare annotation was computed. [2019-10-15 03:24:22,733 INFO L443 ceAbstractionStarter]: For program point L260(lines 260 262) no Hoare annotation was computed. [2019-10-15 03:24:22,733 INFO L443 ceAbstractionStarter]: For program point L128(lines 128 130) no Hoare annotation was computed. [2019-10-15 03:24:22,733 INFO L443 ceAbstractionStarter]: For program point L244(lines 244 246) no Hoare annotation was computed. [2019-10-15 03:24:22,733 INFO L443 ceAbstractionStarter]: For program point L112(lines 112 114) no Hoare annotation was computed. [2019-10-15 03:24:22,733 INFO L443 ceAbstractionStarter]: For program point L228(lines 228 230) no Hoare annotation was computed. [2019-10-15 03:24:22,734 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 13 344) the Hoare annotation is: true [2019-10-15 03:24:22,734 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 343) no Hoare annotation was computed. [2019-10-15 03:24:22,734 INFO L443 ceAbstractionStarter]: For program point L33(lines 33 52) no Hoare annotation was computed. [2019-10-15 03:24:22,734 INFO L443 ceAbstractionStarter]: For program point L34(lines 34 49) no Hoare annotation was computed. [2019-10-15 03:24:22,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:24:22 BoogieIcfgContainer [2019-10-15 03:24:22,750 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 03:24:22,754 INFO L168 Benchmark]: Toolchain (without parser) took 2690.53 ms. Allocated memory was 137.4 MB in the beginning and 232.3 MB in the end (delta: 94.9 MB). Free memory was 102.0 MB in the beginning and 163.8 MB in the end (delta: -61.8 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2019-10-15 03:24:22,755 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 137.4 MB. Free memory was 120.7 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 03:24:22,756 INFO L168 Benchmark]: CACSL2BoogieTranslator took 525.91 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 101.8 MB in the beginning and 180.1 MB in the end (delta: -78.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2019-10-15 03:24:22,757 INFO L168 Benchmark]: Boogie Preprocessor took 90.85 ms. Allocated memory is still 201.9 MB. Free memory was 180.1 MB in the beginning and 178.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-10-15 03:24:22,757 INFO L168 Benchmark]: RCFGBuilder took 586.29 ms. Allocated memory is still 201.9 MB. Free memory was 178.0 MB in the beginning and 149.8 MB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2019-10-15 03:24:22,758 INFO L168 Benchmark]: TraceAbstraction took 1482.37 ms. Allocated memory was 201.9 MB in the beginning and 232.3 MB in the end (delta: 30.4 MB). Free memory was 149.8 MB in the beginning and 163.8 MB in the end (delta: -14.0 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. [2019-10-15 03:24:22,762 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 137.4 MB. Free memory was 120.7 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 525.91 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 101.8 MB in the beginning and 180.1 MB in the end (delta: -78.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 90.85 ms. Allocated memory is still 201.9 MB. Free memory was 180.1 MB in the beginning and 178.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 586.29 ms. Allocated memory is still 201.9 MB. Free memory was 178.0 MB in the beginning and 149.8 MB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1482.37 ms. Allocated memory was 201.9 MB in the beginning and 232.3 MB in the end (delta: 30.4 MB). Free memory was 149.8 MB in the beginning and 163.8 MB in the end (delta: -14.0 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 343]: 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: 23]: Loop Invariant Derived loop invariant: ((2 == q && this_sink == 0) || (q == 0 && this_sink == 0)) || (3 <= q && !(this_sink == 0)) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (q == 0 && this_sink == 0) || (3 <= q && !(this_sink == 0)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 72 locations, 1 error locations. Result: SAFE, OverallTime: 1.4s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 542 SDtfs, 190 SDslu, 284 SDs, 0 SdLazy, 87 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=5, 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, 7 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 14 NumberOfFragments, 44 HoareAnnotationTreeSize, 7 FomulaSimplifications, 29 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 9 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 6427 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 27/27 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...