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/ldv-regression/test04.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:06:46,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:06:46,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:06:46,036 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:06:46,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:06:46,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:06:46,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:06:46,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:06:46,047 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:06:46,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:06:46,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:06:46,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:06:46,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:06:46,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:06:46,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:06:46,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:06:46,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:06:46,064 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:06:46,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:06:46,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:06:46,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:06:46,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:06:46,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:06:46,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:06:46,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-16 17:06:46,084 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:06:46,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:06:46,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:06:46,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:06:46,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:06:46,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:06:46,092 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:06:46,092 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:06:46,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:06:46,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:06:46,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:06:46,098 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 [2019-09-16 17:06:46,118 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:06:46,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:06:46,119 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:06:46,120 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:06:46,120 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:06:46,120 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:06:46,121 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:06:46,121 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:06:46,121 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:06:46,121 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:06:46,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:06:46,123 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:06:46,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:06:46,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:06:46,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:06:46,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:06:46,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:06:46,125 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:06:46,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:06:46,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:06:46,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:06:46,125 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:06:46,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:06:46,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:06:46,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:06:46,126 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:06:46,127 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:06:46,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:06:46,127 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:06:46,127 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:06:46,160 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:06:46,173 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:06:46,176 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:06:46,178 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:06:46,178 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:06:46,179 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test04.c [2019-09-16 17:06:46,247 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce3b39662/a31252b440744cecb1334c6f8192c29e/FLAGb2cb303a0 [2019-09-16 17:06:46,685 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:06:46,686 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test04.c [2019-09-16 17:06:46,692 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce3b39662/a31252b440744cecb1334c6f8192c29e/FLAGb2cb303a0 [2019-09-16 17:06:47,112 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce3b39662/a31252b440744cecb1334c6f8192c29e [2019-09-16 17:06:47,120 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:06:47,121 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:06:47,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:06:47,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:06:47,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:06:47,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:06:47" (1/1) ... [2019-09-16 17:06:47,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46ef1dd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:06:47, skipping insertion in model container [2019-09-16 17:06:47,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:06:47" (1/1) ... [2019-09-16 17:06:47,136 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:06:47,149 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:06:47,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:06:47,322 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:06:47,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:06:47,352 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:06:47,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:06:47 WrapperNode [2019-09-16 17:06:47,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:06:47,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:06:47,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:06:47,355 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:06:47,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:06:47" (1/1) ... [2019-09-16 17:06:47,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:06:47" (1/1) ... [2019-09-16 17:06:47,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:06:47" (1/1) ... [2019-09-16 17:06:47,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:06:47" (1/1) ... [2019-09-16 17:06:47,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:06:47" (1/1) ... [2019-09-16 17:06:47,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:06:47" (1/1) ... [2019-09-16 17:06:47,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:06:47" (1/1) ... [2019-09-16 17:06:47,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:06:47,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:06:47,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:06:47,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:06:47,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:06:47" (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 [2019-09-16 17:06:47,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:06:47,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:06:47,532 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-09-16 17:06:47,532 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:06:47,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:06:47,532 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-09-16 17:06:47,533 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:06:47,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:06:47,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:06:47,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:06:47,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:06:47,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:06:47,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:06:47,726 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:06:47,726 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-16 17:06:47,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:06:47 BoogieIcfgContainer [2019-09-16 17:06:47,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:06:47,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:06:47,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:06:47,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:06:47,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:06:47" (1/3) ... [2019-09-16 17:06:47,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac838fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:06:47, skipping insertion in model container [2019-09-16 17:06:47,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:06:47" (2/3) ... [2019-09-16 17:06:47,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac838fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:06:47, skipping insertion in model container [2019-09-16 17:06:47,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:06:47" (3/3) ... [2019-09-16 17:06:47,735 INFO L109 eAbstractionObserver]: Analyzing ICFG test04.c [2019-09-16 17:06:47,745 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:06:47,752 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:06:47,769 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:06:47,825 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:06:47,826 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:06:47,826 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:06:47,826 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:06:47,826 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:06:47,827 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:06:47,827 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:06:47,827 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:06:47,845 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-09-16 17:06:47,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-16 17:06:47,861 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:06:47,862 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:06:47,864 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:06:47,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:06:47,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1498735640, now seen corresponding path program 1 times [2019-09-16 17:06:47,873 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:06:47,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:06:47,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:06:47,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:06:47,933 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:06:47,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:06:48,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:06:48,143 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:06:48,143 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:06:48,143 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:06:48,147 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:06:48,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:06:48,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:06:48,166 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 6 states. [2019-09-16 17:06:48,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:06:48,250 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2019-09-16 17:06:48,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:06:48,252 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2019-09-16 17:06:48,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:06:48,259 INFO L225 Difference]: With dead ends: 16 [2019-09-16 17:06:48,259 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:06:48,261 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:06:48,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:06:48,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:06:48,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:06:48,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:06:48,288 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-09-16 17:06:48,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:06:48,289 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:06:48,289 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:06:48,289 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:06:48,290 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:06:48,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:06:48 BoogieIcfgContainer [2019-09-16 17:06:48,296 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:06:48,299 INFO L168 Benchmark]: Toolchain (without parser) took 1176.23 ms. Allocated memory was 131.1 MB in the beginning and 198.2 MB in the end (delta: 67.1 MB). Free memory was 86.9 MB in the beginning and 130.6 MB in the end (delta: -43.6 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:06:48,300 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 131.1 MB. Free memory was 105.3 MB in the beginning and 105.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:06:48,301 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.71 ms. Allocated memory is still 131.1 MB. Free memory was 86.7 MB in the beginning and 76.8 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-09-16 17:06:48,303 INFO L168 Benchmark]: Boogie Preprocessor took 114.87 ms. Allocated memory was 131.1 MB in the beginning and 198.2 MB in the end (delta: 67.1 MB). Free memory was 76.8 MB in the beginning and 174.4 MB in the end (delta: -97.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:06:48,303 INFO L168 Benchmark]: RCFGBuilder took 258.52 ms. Allocated memory is still 198.2 MB. Free memory was 174.4 MB in the beginning and 160.7 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:06:48,304 INFO L168 Benchmark]: TraceAbstraction took 567.16 ms. Allocated memory is still 198.2 MB. Free memory was 160.7 MB in the beginning and 130.6 MB in the end (delta: 30.2 MB). Peak memory consumption was 30.2 MB. Max. memory is 7.1 GB. [2019-09-16 17:06:48,309 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 131.1 MB. Free memory was 105.3 MB in the beginning and 105.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 231.71 ms. Allocated memory is still 131.1 MB. Free memory was 86.7 MB in the beginning and 76.8 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.87 ms. Allocated memory was 131.1 MB in the beginning and 198.2 MB in the end (delta: 67.1 MB). Free memory was 76.8 MB in the beginning and 174.4 MB in the end (delta: -97.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 258.52 ms. Allocated memory is still 198.2 MB. Free memory was 174.4 MB in the beginning and 160.7 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 567.16 ms. Allocated memory is still 198.2 MB. Free memory was 160.7 MB in the beginning and 130.6 MB in the end (delta: 30.2 MB). Peak memory consumption was 30.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: 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, 18 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 0 SDslu, 43 SDs, 0 SdLazy, 13 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 540 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...