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/float-benchs/divmul_diverge.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:30:47,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:30:47,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:30:47,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-10 01:30:47,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:30:47,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:30:47,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:30:47,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:30:47,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:30:47,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:30:47,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:30:47,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:30:47,146 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:30:47,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:30:47,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:30:47,149 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:30:47,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-10 01:30:47,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:30:47,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:30:47,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:30:47,156 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:30:47,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:30:47,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:30:47,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:30:47,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:30:47,158 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:30:47,159 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:30:47,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:30:47,160 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 [2019-09-10 01:30:47,174 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:30:47,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:30:47,175 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:30:47,175 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:30:47,176 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:30:47,176 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:30:47,176 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:30:47,176 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:30:47,176 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:30:47,177 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:30:47,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:30:47,177 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:30:47,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:30:47,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:30:47,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:30:47,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:30:47,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:30:47,178 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:30:47,179 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:30:47,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:30:47,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:30:47,179 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:30:47,179 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:30:47,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:30:47,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:30:47,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:30:47,180 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:30:47,180 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:30:47,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:30:47,181 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:30:47,212 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:30:47,223 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:30:47,226 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:30:47,227 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:30:47,227 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:30:47,228 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/divmul_diverge.c [2019-09-10 01:30:47,295 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b5f8c867/5acaad5729e64e88ada0bf98ef723b2a/FLAG734319af3 [2019-09-10 01:30:47,695 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:30:47,695 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/divmul_diverge.c [2019-09-10 01:30:47,702 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b5f8c867/5acaad5729e64e88ada0bf98ef723b2a/FLAG734319af3 [2019-09-10 01:30:48,060 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b5f8c867/5acaad5729e64e88ada0bf98ef723b2a [2019-09-10 01:30:48,068 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:30:48,070 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:30:48,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:30:48,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:30:48,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:30:48,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:30:48" (1/1) ... [2019-09-10 01:30:48,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17114e0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:30:48, skipping insertion in model container [2019-09-10 01:30:48,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:30:48" (1/1) ... [2019-09-10 01:30:48,086 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:30:48,099 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:30:48,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:30:48,343 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:30:48,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:30:48,383 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:30:48,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:30:48 WrapperNode [2019-09-10 01:30:48,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:30:48,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:30:48,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:30:48,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:30:48,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:30:48" (1/1) ... [2019-09-10 01:30:48,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:30:48" (1/1) ... [2019-09-10 01:30:48,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:30:48" (1/1) ... [2019-09-10 01:30:48,532 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:30:48" (1/1) ... [2019-09-10 01:30:48,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:30:48" (1/1) ... [2019-09-10 01:30:48,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:30:48" (1/1) ... [2019-09-10 01:30:48,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:30:48" (1/1) ... [2019-09-10 01:30:48,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:30:48,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:30:48,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:30:48,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:30:48,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:30:48" (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 [2019-09-10 01:30:48,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:30:48,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:30:48,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-10 01:30:48,607 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_clock [2019-09-10 01:30:48,607 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:30:48,607 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:30:48,607 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 01:30:48,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2019-09-10 01:30:48,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 01:30:48,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-10 01:30:48,608 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_clock [2019-09-10 01:30:48,609 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:30:48,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:30:48,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:30:48,788 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:30:48,788 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-10 01:30:48,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:30:48 BoogieIcfgContainer [2019-09-10 01:30:48,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:30:48,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:30:48,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:30:48,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:30:48,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:30:48" (1/3) ... [2019-09-10 01:30:48,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac7ae39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:30:48, skipping insertion in model container [2019-09-10 01:30:48,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:30:48" (2/3) ... [2019-09-10 01:30:48,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac7ae39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:30:48, skipping insertion in model container [2019-09-10 01:30:48,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:30:48" (3/3) ... [2019-09-10 01:30:48,817 INFO L109 eAbstractionObserver]: Analyzing ICFG divmul_diverge.c [2019-09-10 01:30:48,844 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:30:48,862 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:30:48,896 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:30:48,929 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:30:48,929 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:30:48,929 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:30:48,930 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:30:48,930 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:30:48,930 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:30:48,930 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:30:48,930 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:30:48,950 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-09-10 01:30:48,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-10 01:30:48,958 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:30:48,959 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:30:48,960 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:30:48,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:30:48,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1082648863, now seen corresponding path program 1 times [2019-09-10 01:30:48,967 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:30:49,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:30:49,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:30:49,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:30:49,003 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:30:49,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:30:49,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:30:49,058 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:30:49,058 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 01:30:49,058 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:30:49,061 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:30:49,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:30:49,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:30:49,074 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2019-09-10 01:30:49,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:30:49,087 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2019-09-10 01:30:49,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:30:49,089 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-09-10 01:30:49,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:30:49,098 INFO L225 Difference]: With dead ends: 24 [2019-09-10 01:30:49,098 INFO L226 Difference]: Without dead ends: 17 [2019-09-10 01:30:49,100 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 [2019-09-10 01:30:49,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-09-10 01:30:49,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-09-10 01:30:49,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-09-10 01:30:49,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-09-10 01:30:49,133 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 10 [2019-09-10 01:30:49,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:30:49,133 INFO L475 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-09-10 01:30:49,133 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:30:49,134 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-09-10 01:30:49,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-10 01:30:49,134 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:30:49,134 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:30:49,135 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:30:49,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:30:49,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1069719569, now seen corresponding path program 1 times [2019-09-10 01:30:49,135 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:30:49,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:30:49,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:30:49,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:30:49,137 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:30:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:30:49,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:30:49,177 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:30:49,177 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 01:30:49,177 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:30:49,179 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 01:30:49,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 01:30:49,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 01:30:49,180 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 3 states. [2019-09-10 01:30:49,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:30:49,196 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2019-09-10 01:30:49,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 01:30:49,196 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-09-10 01:30:49,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:30:49,198 INFO L225 Difference]: With dead ends: 22 [2019-09-10 01:30:49,198 INFO L226 Difference]: Without dead ends: 22 [2019-09-10 01:30:49,199 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 [2019-09-10 01:30:49,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-09-10 01:30:49,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2019-09-10 01:30:49,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-09-10 01:30:49,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2019-09-10 01:30:49,208 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 10 [2019-09-10 01:30:49,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:30:49,208 INFO L475 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2019-09-10 01:30:49,208 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 01:30:49,208 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2019-09-10 01:30:49,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-10 01:30:49,209 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:30:49,209 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:30:49,209 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:30:49,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:30:49,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1770755898, now seen corresponding path program 1 times [2019-09-10 01:30:49,210 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:30:49,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:30:49,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:30:49,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:30:49,211 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:30:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:30:49,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:30:49,258 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:30:49,258 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 01:30:49,260 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2019-09-10 01:30:49,261 INFO L207 CegarAbsIntRunner]: [0], [1], [5], [11], [13], [16], [20], [23], [30], [33], [35], [41], [42], [43], [45], [46], [47] [2019-09-10 01:30:49,293 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 01:30:49,293 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 01:30:49,358 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator COMPLT has no precise implementation. [2019-09-10 01:30:49,359 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator COMPGT has no precise implementation. [2019-09-10 01:30:49,620 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 01:30:49,623 INFO L272 AbstractInterpreter]: Visited 17 different actions 73 times. Merged at 5 different actions 35 times. Widened at 1 different actions 3 times. Performed 162 root evaluator evaluations with a maximum evaluation depth of 6. Performed 162 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 5 variables. [2019-09-10 01:30:49,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:30:49,628 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 01:30:49,629 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:30:49,633 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 01:30:49,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:30:49,649 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 01:30:49,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:30:49,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2019-09-10 01:30:49,676 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 01:30:49,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:30:49,697 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 01:30:49,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:30:49,754 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 01:30:49,754 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2019-09-10 01:30:49,754 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 01:30:49,755 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 01:30:49,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 01:30:49,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-09-10 01:30:49,756 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 4 states. [2019-09-10 01:30:49,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:30:49,784 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2019-09-10 01:30:49,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 01:30:49,784 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-09-10 01:30:49,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:30:49,786 INFO L225 Difference]: With dead ends: 27 [2019-09-10 01:30:49,786 INFO L226 Difference]: Without dead ends: 27 [2019-09-10 01:30:49,786 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-09-10 01:30:49,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-09-10 01:30:49,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2019-09-10 01:30:49,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-09-10 01:30:49,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-09-10 01:30:49,791 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 17 [2019-09-10 01:30:49,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:30:49,792 INFO L475 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-09-10 01:30:49,792 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 01:30:49,792 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-09-10 01:30:49,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-09-10 01:30:49,794 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:30:49,795 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:30:49,795 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:30:49,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:30:49,795 INFO L82 PathProgramCache]: Analyzing trace with hash 337571825, now seen corresponding path program 2 times [2019-09-10 01:30:49,796 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:30:49,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:30:49,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:30:49,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:30:49,797 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:30:49,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:30:49,890 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 01:30:49,890 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:30:49,891 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 01:30:49,891 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 01:30:49,891 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 01:30:49,892 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:30:49,892 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 01:30:49,906 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-10 01:30:49,906 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 01:30:49,937 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-09-10 01:30:49,937 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 01:30:49,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 9 conjunts are in the unsatisfiable core [2019-09-10 01:30:49,940 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 01:30:49,962 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 01:30:49,991 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-10 01:30:49,991 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 01:30:50,050 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (3)] Exception during sending of exit command (exit): Broken pipe [2019-09-10 01:30:50,056 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-09-10 01:30:50,056 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5] total 11 [2019-09-10 01:30:50,056 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:30:50,057 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 01:30:50,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 01:30:50,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-09-10 01:30:50,058 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 5 states. [2019-09-10 01:30:50,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:30:50,087 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2019-09-10 01:30:50,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 01:30:50,087 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-09-10 01:30:50,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:30:50,088 INFO L225 Difference]: With dead ends: 21 [2019-09-10 01:30:50,088 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 01:30:50,089 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2019-09-10 01:30:50,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 01:30:50,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 01:30:50,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 01:30:50,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 01:30:50,090 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2019-09-10 01:30:50,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:30:50,090 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 01:30:50,090 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 01:30:50,090 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 01:30:50,090 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 01:30:50,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:30:50 BoogieIcfgContainer [2019-09-10 01:30:50,096 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:30:50,099 INFO L168 Benchmark]: Toolchain (without parser) took 2027.75 ms. Allocated memory was 136.8 MB in the beginning and 235.9 MB in the end (delta: 99.1 MB). Free memory was 92.7 MB in the beginning and 186.6 MB in the end (delta: -93.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:30:50,099 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 136.8 MB. Free memory was 111.3 MB in the beginning and 111.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:30:50,100 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.08 ms. Allocated memory is still 136.8 MB. Free memory was 92.3 MB in the beginning and 83.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-09-10 01:30:50,102 INFO L168 Benchmark]: Boogie Preprocessor took 159.04 ms. Allocated memory was 136.8 MB in the beginning and 205.5 MB in the end (delta: 68.7 MB). Free memory was 83.0 MB in the beginning and 182.3 MB in the end (delta: -99.2 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. [2019-09-10 01:30:50,103 INFO L168 Benchmark]: RCFGBuilder took 251.38 ms. Allocated memory is still 205.5 MB. Free memory was 182.3 MB in the beginning and 170.4 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2019-09-10 01:30:50,104 INFO L168 Benchmark]: TraceAbstraction took 1299.87 ms. Allocated memory was 205.5 MB in the beginning and 235.9 MB in the end (delta: 30.4 MB). Free memory was 169.8 MB in the beginning and 186.6 MB in the end (delta: -16.8 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2019-09-10 01:30:50,108 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 136.8 MB. Free memory was 111.3 MB in the beginning and 111.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 313.08 ms. Allocated memory is still 136.8 MB. Free memory was 92.3 MB in the beginning and 83.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 159.04 ms. Allocated memory was 136.8 MB in the beginning and 205.5 MB in the end (delta: 68.7 MB). Free memory was 83.0 MB in the beginning and 182.3 MB in the end (delta: -99.2 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 251.38 ms. Allocated memory is still 205.5 MB. Free memory was 182.3 MB in the beginning and 170.4 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1299.87 ms. Allocated memory was 205.5 MB in the beginning and 235.9 MB in the end (delta: 30.4 MB). Free memory was 169.8 MB in the beginning and 186.6 MB in the end (delta: -16.8 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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 5 procedures, 24 locations, 1 error locations. SAFE Result, 1.1s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 74 SDtfs, 15 SDslu, 76 SDs, 0 SdLazy, 19 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 102 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 135 ConstructedInterpolants, 0 QuantifiedInterpolants, 5687 SizeOfPredicates, 3 NumberOfNonLiveVariables, 80 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 20/30 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...