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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/array-crafted/zero_sum_m4.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-09 05:35:34,996 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-09 05:35:34,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-09 05:35:35,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-09 05:35:35,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-09 05:35:35,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-09 05:35:35,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-09 05:35:35,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-09 05:35:35,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-09 05:35:35,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-09 05:35:35,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-09 05:35:35,059 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-09 05:35:35,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-09 05:35:35,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-09 05:35:35,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-09 05:35:35,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-09 05:35:35,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-09 05:35:35,076 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-09 05:35:35,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-09 05:35:35,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-09 05:35:35,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-09 05:35:35,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-09 05:35:35,079 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-09 05:35:35,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-09 05:35:35,080 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-09 05:35:35,080 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-09 05:35:35,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-09 05:35:35,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-09 05:35:35,083 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-09 05:35:35,097 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-09 05:35:35,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-09 05:35:35,098 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-09 05:35:35,098 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-09 05:35:35,099 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-09 05:35:35,099 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-09 05:35:35,099 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-09 05:35:35,100 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-09 05:35:35,100 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-09 05:35:35,100 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-09 05:35:35,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-09 05:35:35,101 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-09 05:35:35,101 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-09 05:35:35,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-09 05:35:35,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-09 05:35:35,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-09 05:35:35,102 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-09 05:35:35,102 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-09 05:35:35,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-09 05:35:35,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-09 05:35:35,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-09 05:35:35,103 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-09 05:35:35,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-09 05:35:35,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-09 05:35:35,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-09 05:35:35,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-09 05:35:35,104 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-09 05:35:35,104 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-09 05:35:35,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-09 05:35:35,104 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-09 05:35:35,132 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-09 05:35:35,144 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-09 05:35:35,148 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-09 05:35:35,149 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-09 05:35:35,150 INFO L275 PluginConnector]: CDTParser initialized [2019-09-09 05:35:35,150 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-crafted/zero_sum_m4.c [2019-09-09 05:35:35,212 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93b7407d2/13a10ce1619c4b06a03b8efb931a8fa0/FLAG49bbd2267 [2019-09-09 05:35:35,642 INFO L306 CDTParser]: Found 1 translation units. [2019-09-09 05:35:35,643 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-crafted/zero_sum_m4.c [2019-09-09 05:35:35,650 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93b7407d2/13a10ce1619c4b06a03b8efb931a8fa0/FLAG49bbd2267 [2019-09-09 05:35:36,040 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93b7407d2/13a10ce1619c4b06a03b8efb931a8fa0 [2019-09-09 05:35:36,049 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-09 05:35:36,051 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-09 05:35:36,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-09 05:35:36,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-09 05:35:36,059 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-09 05:35:36,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 05:35:36" (1/1) ... [2019-09-09 05:35:36,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39e607a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:36, skipping insertion in model container [2019-09-09 05:35:36,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 05:35:36" (1/1) ... [2019-09-09 05:35:36,070 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-09 05:35:36,094 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-09 05:35:36,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 05:35:36,326 INFO L188 MainTranslator]: Completed pre-run [2019-09-09 05:35:36,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 05:35:36,461 INFO L192 MainTranslator]: Completed translation [2019-09-09 05:35:36,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:36 WrapperNode [2019-09-09 05:35:36,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-09 05:35:36,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-09 05:35:36,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-09 05:35:36,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-09 05:35:36,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:36" (1/1) ... [2019-09-09 05:35:36,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:36" (1/1) ... [2019-09-09 05:35:36,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:36" (1/1) ... [2019-09-09 05:35:36,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:36" (1/1) ... [2019-09-09 05:35:36,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:36" (1/1) ... [2019-09-09 05:35:36,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:36" (1/1) ... [2019-09-09 05:35:36,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:36" (1/1) ... [2019-09-09 05:35:36,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-09 05:35:36,537 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-09 05:35:36,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-09 05:35:36,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-09 05:35:36,538 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:36" (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 [2019-09-09 05:35:36,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-09 05:35:36,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-09 05:35:36,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-09 05:35:36,597 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-09 05:35:36,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-09 05:35:36,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-09 05:35:36,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-09 05:35:36,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2019-09-09 05:35:36,597 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-09 05:35:36,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-09 05:35:36,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-09 05:35:36,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-09 05:35:36,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-09 05:35:36,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-09 05:35:36,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-09 05:35:36,967 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-09 05:35:36,967 INFO L283 CfgBuilder]: Removed 9 assume(true) statements. [2019-09-09 05:35:36,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 05:35:36 BoogieIcfgContainer [2019-09-09 05:35:36,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-09 05:35:36,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-09 05:35:36,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-09 05:35:36,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-09 05:35:36,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.09 05:35:36" (1/3) ... [2019-09-09 05:35:36,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394bce06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 05:35:36, skipping insertion in model container [2019-09-09 05:35:36,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:36" (2/3) ... [2019-09-09 05:35:36,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394bce06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 05:35:36, skipping insertion in model container [2019-09-09 05:35:36,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 05:35:36" (3/3) ... [2019-09-09 05:35:36,979 INFO L109 eAbstractionObserver]: Analyzing ICFG zero_sum_m4.c [2019-09-09 05:35:36,990 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-09 05:35:36,998 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-09 05:35:37,014 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-09 05:35:37,042 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-09 05:35:37,042 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-09 05:35:37,043 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-09 05:35:37,043 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-09 05:35:37,043 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-09 05:35:37,043 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-09 05:35:37,043 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-09 05:35:37,044 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-09 05:35:37,058 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-09-09 05:35:37,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-09-09 05:35:37,068 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:35:37,069 INFO L399 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] [2019-09-09 05:35:37,072 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:35:37,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:35:37,077 INFO L82 PathProgramCache]: Analyzing trace with hash -2099146995, now seen corresponding path program 1 times [2019-09-09 05:35:37,079 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:35:37,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:35:37,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:35:37,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:35:37,123 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:35:37,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:35:37,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 05:35:37,244 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:35:37,244 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-09 05:35:37,245 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:35:37,249 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-09 05:35:37,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-09 05:35:37,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-09 05:35:37,263 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2019-09-09 05:35:37,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:35:37,279 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2019-09-09 05:35:37,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-09 05:35:37,280 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 28 [2019-09-09 05:35:37,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:35:37,288 INFO L225 Difference]: With dead ends: 46 [2019-09-09 05:35:37,288 INFO L226 Difference]: Without dead ends: 38 [2019-09-09 05:35:37,290 INFO L628 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 [2019-09-09 05:35:37,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-09-09 05:35:37,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-09-09 05:35:37,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-09-09 05:35:37,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2019-09-09 05:35:37,327 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 28 [2019-09-09 05:35:37,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:35:37,328 INFO L475 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2019-09-09 05:35:37,328 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-09 05:35:37,328 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2019-09-09 05:35:37,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-09-09 05:35:37,330 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:35:37,330 INFO L399 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] [2019-09-09 05:35:37,330 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:35:37,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:35:37,331 INFO L82 PathProgramCache]: Analyzing trace with hash -2130853259, now seen corresponding path program 1 times [2019-09-09 05:35:37,331 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:35:37,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:35:37,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:35:37,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:35:37,333 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:35:37,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:35:37,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 05:35:37,500 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:35:37,501 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-09 05:35:37,501 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:35:37,505 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-09 05:35:37,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-09 05:35:37,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-09 05:35:37,507 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand 5 states. [2019-09-09 05:35:37,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:35:37,632 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2019-09-09 05:35:37,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-09 05:35:37,632 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2019-09-09 05:35:37,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:35:37,636 INFO L225 Difference]: With dead ends: 56 [2019-09-09 05:35:37,636 INFO L226 Difference]: Without dead ends: 53 [2019-09-09 05:35:37,637 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-09 05:35:37,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-09-09 05:35:37,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2019-09-09 05:35:37,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-09-09 05:35:37,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 68 transitions. [2019-09-09 05:35:37,650 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 68 transitions. Word has length 28 [2019-09-09 05:35:37,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:35:37,651 INFO L475 AbstractCegarLoop]: Abstraction has 53 states and 68 transitions. [2019-09-09 05:35:37,651 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-09 05:35:37,651 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 68 transitions. [2019-09-09 05:35:37,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-09-09 05:35:37,653 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:35:37,655 INFO L399 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] [2019-09-09 05:35:37,656 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:35:37,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:35:37,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1966572211, now seen corresponding path program 1 times [2019-09-09 05:35:37,657 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:35:37,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:35:37,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:35:37,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:35:37,662 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:35:37,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:35:37,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-09 05:35:37,737 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:35:37,737 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-09 05:35:37,738 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:35:37,738 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-09 05:35:37,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-09 05:35:37,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 05:35:37,739 INFO L87 Difference]: Start difference. First operand 53 states and 68 transitions. Second operand 3 states. [2019-09-09 05:35:37,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:35:37,787 INFO L93 Difference]: Finished difference Result 55 states and 70 transitions. [2019-09-09 05:35:37,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-09 05:35:37,788 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2019-09-09 05:35:37,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:35:37,789 INFO L225 Difference]: With dead ends: 55 [2019-09-09 05:35:37,789 INFO L226 Difference]: Without dead ends: 55 [2019-09-09 05:35:37,790 INFO L628 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 [2019-09-09 05:35:37,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-09-09 05:35:37,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2019-09-09 05:35:37,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-09-09 05:35:37,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 69 transitions. [2019-09-09 05:35:37,797 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 69 transitions. Word has length 30 [2019-09-09 05:35:37,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:35:37,797 INFO L475 AbstractCegarLoop]: Abstraction has 54 states and 69 transitions. [2019-09-09 05:35:37,797 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-09 05:35:37,798 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 69 transitions. [2019-09-09 05:35:37,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-09-09 05:35:37,799 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:35:37,799 INFO L399 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] [2019-09-09 05:35:37,799 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:35:37,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:35:37,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1207168369, now seen corresponding path program 1 times [2019-09-09 05:35:37,800 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:35:37,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:35:37,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:35:37,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:35:37,802 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:35:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:35:37,876 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-09 05:35:37,877 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:35:37,877 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-09 05:35:37,877 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:35:37,878 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-09 05:35:37,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-09 05:35:37,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-09 05:35:37,879 INFO L87 Difference]: Start difference. First operand 54 states and 69 transitions. Second operand 4 states. [2019-09-09 05:35:38,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:35:38,033 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2019-09-09 05:35:38,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-09 05:35:38,034 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-09-09 05:35:38,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:35:38,035 INFO L225 Difference]: With dead ends: 55 [2019-09-09 05:35:38,035 INFO L226 Difference]: Without dead ends: 55 [2019-09-09 05:35:38,036 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-09 05:35:38,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-09-09 05:35:38,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 47. [2019-09-09 05:35:38,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-09-09 05:35:38,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 55 transitions. [2019-09-09 05:35:38,042 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 55 transitions. Word has length 32 [2019-09-09 05:35:38,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:35:38,042 INFO L475 AbstractCegarLoop]: Abstraction has 47 states and 55 transitions. [2019-09-09 05:35:38,043 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-09 05:35:38,043 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2019-09-09 05:35:38,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-09 05:35:38,044 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:35:38,045 INFO L399 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] [2019-09-09 05:35:38,045 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:35:38,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:35:38,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1413365853, now seen corresponding path program 1 times [2019-09-09 05:35:38,046 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:35:38,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:35:38,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:35:38,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:35:38,047 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:35:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:35:38,142 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-09 05:35:38,142 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-09 05:35:38,142 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-09 05:35:38,143 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 47 with the following transitions: [2019-09-09 05:35:38,145 INFO L207 CegarAbsIntRunner]: [0], [1], [5], [8], [14], [16], [18], [22], [28], [30], [32], [36], [42], [44], [46], [50], [56], [58], [60], [64], [70], [72], [74], [78], [84], [86], [88], [92], [98], [100], [102], [106], [112], [114], [116], [120], [126], [128], [130], [141], [144], [146], [152], [153], [154], [156] [2019-09-09 05:35:38,178 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-09 05:35:38,179 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-09 05:35:38,244 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-09 05:35:38,246 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Performed 21 root evaluator evaluations with a maximum evaluation depth of 2. Performed 21 inverse root evaluator evaluations with a maximum inverse evaluation depth of 2. Never found a fixpoint. Largest state had 38 variables. [2019-09-09 05:35:38,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:35:38,250 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-09 05:35:38,294 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 96.67% of their original sizes. [2019-09-09 05:35:38,294 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-09 05:35:38,299 INFO L420 sIntCurrentIteration]: We unified 45 AI predicates to 45 [2019-09-09 05:35:38,300 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-09 05:35:38,301 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-09 05:35:38,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2019-09-09 05:35:38,301 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:35:38,301 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-09 05:35:38,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-09 05:35:38,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 05:35:38,302 INFO L87 Difference]: Start difference. First operand 47 states and 55 transitions. Second operand 3 states. [2019-09-09 05:35:38,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:35:38,304 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2019-09-09 05:35:38,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-09 05:35:38,305 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2019-09-09 05:35:38,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:35:38,305 INFO L225 Difference]: With dead ends: 7 [2019-09-09 05:35:38,305 INFO L226 Difference]: Without dead ends: 0 [2019-09-09 05:35:38,305 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 05:35:38,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-09 05:35:38,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-09 05:35:38,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-09 05:35:38,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-09 05:35:38,306 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2019-09-09 05:35:38,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:35:38,307 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-09 05:35:38,307 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-09 05:35:38,307 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-09 05:35:38,307 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-09 05:35:38,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.09 05:35:38 BoogieIcfgContainer [2019-09-09 05:35:38,312 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-09 05:35:38,315 INFO L168 Benchmark]: Toolchain (without parser) took 2263.12 ms. Allocated memory was 136.3 MB in the beginning and 232.8 MB in the end (delta: 96.5 MB). Free memory was 92.2 MB in the beginning and 188.4 MB in the end (delta: -96.3 MB). Peak memory consumption was 193.6 kB. Max. memory is 7.1 GB. [2019-09-09 05:35:38,316 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 136.3 MB. Free memory was 110.8 MB in the beginning and 110.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-09 05:35:38,317 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.14 ms. Allocated memory was 136.3 MB in the beginning and 201.3 MB in the end (delta: 65.0 MB). Free memory was 91.7 MB in the beginning and 177.9 MB in the end (delta: -86.2 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2019-09-09 05:35:38,318 INFO L168 Benchmark]: Boogie Preprocessor took 73.80 ms. Allocated memory is still 201.3 MB. Free memory was 177.9 MB in the beginning and 176.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-09-09 05:35:38,319 INFO L168 Benchmark]: RCFGBuilder took 432.66 ms. Allocated memory is still 201.3 MB. Free memory was 176.2 MB in the beginning and 156.6 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2019-09-09 05:35:38,320 INFO L168 Benchmark]: TraceAbstraction took 1340.17 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 156.6 MB in the beginning and 188.4 MB in the end (delta: -31.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-09 05:35:38,324 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 136.3 MB. Free memory was 110.8 MB in the beginning and 110.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 410.14 ms. Allocated memory was 136.3 MB in the beginning and 201.3 MB in the end (delta: 65.0 MB). Free memory was 91.7 MB in the beginning and 177.9 MB in the end (delta: -86.2 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 73.80 ms. Allocated memory is still 201.3 MB. Free memory was 177.9 MB in the beginning and 176.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 432.66 ms. Allocated memory is still 201.3 MB. Free memory was 176.2 MB in the beginning and 156.6 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1340.17 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 156.6 MB in the beginning and 188.4 MB in the end (delta: -31.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 46 locations, 1 error locations. SAFE Result, 1.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 162 SDtfs, 59 SDslu, 137 SDs, 0 SdLazy, 117 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9777777777777777 AbsIntWeakeningRatio, 0.8 AbsIntAvgWeakeningVarsNumRemoved, 0.35555555555555557 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 7747 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 11/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...