/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:35:03,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:35:03,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:35:03,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:35:03,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:35:03,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:35:03,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:35:03,369 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:35:03,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:35:03,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:35:03,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:35:03,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:35:03,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:35:03,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:35:03,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:35:03,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:35:03,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:35:03,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:35:03,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:35:03,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:35:03,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:35:03,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:35:03,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:35:03,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:35:03,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 00:35:03,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:35:03,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:35:03,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:35:03,416 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 00:35:03,445 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:35:03,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:35:03,450 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:35:03,450 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:35:03,451 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:35:03,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:35:03,451 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:35:03,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:35:03,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:35:03,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:35:03,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:35:03,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:35:03,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:35:03,454 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:35:03,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:35:03,454 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:35:03,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:35:03,455 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:35:03,455 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:35:03,455 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:35:03,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:35:03,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:35:03,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:35:03,456 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:35:03,456 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:35:03,456 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:35:03,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:35:03,456 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:35:03,457 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 00:35:03,754 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:35:03,767 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:35:03,771 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:35:03,772 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:35:03,773 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:35:03,773 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i [2019-11-07 00:35:03,843 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b40421935/c9e4b73beb064e8b9bae9d85791f6ec6/FLAG6ad52d3a8 [2019-11-07 00:35:04,257 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:35:04,258 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant.i [2019-11-07 00:35:04,264 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b40421935/c9e4b73beb064e8b9bae9d85791f6ec6/FLAG6ad52d3a8 [2019-11-07 00:35:04,664 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b40421935/c9e4b73beb064e8b9bae9d85791f6ec6 [2019-11-07 00:35:04,675 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:35:04,677 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:35:04,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:35:04,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:35:04,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:35:04,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:35:04" (1/1) ... [2019-11-07 00:35:04,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@404100ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:04, skipping insertion in model container [2019-11-07 00:35:04,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:35:04" (1/1) ... [2019-11-07 00:35:04,693 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:35:04,710 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:35:04,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:35:04,897 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:35:04,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:35:04,923 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:35:04,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:04 WrapperNode [2019-11-07 00:35:04,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:35:04,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:35:04,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:35:04,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:35:05,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:04" (1/1) ... [2019-11-07 00:35:05,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:04" (1/1) ... [2019-11-07 00:35:05,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:04" (1/1) ... [2019-11-07 00:35:05,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:04" (1/1) ... [2019-11-07 00:35:05,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:04" (1/1) ... [2019-11-07 00:35:05,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:04" (1/1) ... [2019-11-07 00:35:05,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:04" (1/1) ... [2019-11-07 00:35:05,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:35:05,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:35:05,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:35:05,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:35:05,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:04" (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 [2019-11-07 00:35:05,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:35:05,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:35:05,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-07 00:35:05,085 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:35:05,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:35:05,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-07 00:35:05,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 00:35:05,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:35:05,086 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:35:05,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:35:05,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:35:05,265 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:35:05,266 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 00:35:05,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:35:05 BoogieIcfgContainer [2019-11-07 00:35:05,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:35:05,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:35:05,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:35:05,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:35:05,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:35:04" (1/3) ... [2019-11-07 00:35:05,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256f482d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:35:05, skipping insertion in model container [2019-11-07 00:35:05,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:04" (2/3) ... [2019-11-07 00:35:05,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256f482d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:35:05, skipping insertion in model container [2019-11-07 00:35:05,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:35:05" (3/3) ... [2019-11-07 00:35:05,275 INFO L109 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2019-11-07 00:35:05,285 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:35:05,293 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:35:05,314 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:35:05,381 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:35:05,381 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:35:05,381 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:35:05,381 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:35:05,382 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:35:05,382 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:35:05,382 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:35:05,382 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:35:05,416 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-11-07 00:35:05,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-07 00:35:05,424 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:35:05,425 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:35:05,426 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:35:05,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:35:05,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1772153714, now seen corresponding path program 1 times [2019-11-07 00:35:05,439 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:35:05,440 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675933920] [2019-11-07 00:35:05,440 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:35:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:35:05,760 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 21 [2019-11-07 00:35:05,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:35:05,875 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675933920] [2019-11-07 00:35:05,876 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:35:05,876 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 00:35:05,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670791527] [2019-11-07 00:35:05,883 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 00:35:05,885 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:35:05,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 00:35:05,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-07 00:35:05,903 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 7 states. [2019-11-07 00:35:06,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:35:06,160 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2019-11-07 00:35:06,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 00:35:06,164 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-11-07 00:35:06,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:35:06,175 INFO L225 Difference]: With dead ends: 47 [2019-11-07 00:35:06,176 INFO L226 Difference]: Without dead ends: 15 [2019-11-07 00:35:06,184 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-11-07 00:35:06,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-11-07 00:35:06,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-07 00:35:06,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-07 00:35:06,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-11-07 00:35:06,237 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2019-11-07 00:35:06,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:35:06,238 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-11-07 00:35:06,238 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 00:35:06,239 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-11-07 00:35:06,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-07 00:35:06,240 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:35:06,241 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:35:06,242 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:35:06,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:35:06,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1871056931, now seen corresponding path program 1 times [2019-11-07 00:35:06,243 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:35:06,244 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698371238] [2019-11-07 00:35:06,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:35:06,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:35:06,487 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:35:06,487 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698371238] [2019-11-07 00:35:06,489 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680080061] [2019-11-07 00:35:06,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:35:06,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:35:06,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-07 00:35:06,551 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:35:06,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:35:06,684 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:35:06,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:35:06,820 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [397227628] [2019-11-07 00:35:06,828 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 15 [2019-11-07 00:35:06,880 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-07 00:35:06,880 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 00:35:07,058 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-11-07 00:35:07,064 INFO L272 AbstractInterpreter]: Visited 14 different actions 49 times. Merged at 3 different actions 15 times. Widened at 1 different actions 3 times. Performed 153 root evaluator evaluations with a maximum evaluation depth of 5. Performed 153 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 1 fixpoints after 1 different actions. Largest state had 9 variables. [2019-11-07 00:35:07,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:35:07,070 INFO L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-07 00:35:07,070 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-11-07 00:35:07,071 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2019-11-07 00:35:07,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561080938] [2019-11-07 00:35:07,072 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-07 00:35:07,073 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:35:07,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-07 00:35:07,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2019-11-07 00:35:07,074 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 17 states. [2019-11-07 00:35:07,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:35:07,339 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2019-11-07 00:35:07,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-07 00:35:07,339 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 14 [2019-11-07 00:35:07,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:35:07,340 INFO L225 Difference]: With dead ends: 26 [2019-11-07 00:35:07,341 INFO L226 Difference]: Without dead ends: 18 [2019-11-07 00:35:07,342 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2019-11-07 00:35:07,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-07 00:35:07,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-07 00:35:07,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-07 00:35:07,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-11-07 00:35:07,347 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 14 [2019-11-07 00:35:07,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:35:07,348 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-11-07 00:35:07,348 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-07 00:35:07,348 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-11-07 00:35:07,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-07 00:35:07,349 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:35:07,349 INFO L410 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:35:07,554 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:35:07,556 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:35:07,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:35:07,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1276972978, now seen corresponding path program 2 times [2019-11-07 00:35:07,564 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:35:07,564 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025079722] [2019-11-07 00:35:07,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:35:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:35:07,953 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 00:35:07,954 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025079722] [2019-11-07 00:35:07,954 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271752126] [2019-11-07 00:35:07,954 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:35:08,007 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-11-07 00:35:08,008 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-07 00:35:08,009 WARN L254 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 40 conjunts are in the unsatisfiable core [2019-11-07 00:35:08,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:35:08,214 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:35:08,215 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:35:08,405 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:35:08,405 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1755587236] [2019-11-07 00:35:08,405 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-11-07 00:35:08,406 INFO L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-11-07 00:35:08,406 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-11-07 00:35:08,406 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 25 [2019-11-07 00:35:08,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064025314] [2019-11-07 00:35:08,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-07 00:35:08,407 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:35:08,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-07 00:35:08,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2019-11-07 00:35:08,408 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 25 states. [2019-11-07 00:35:08,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:35:08,626 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-11-07 00:35:08,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-07 00:35:08,627 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 17 [2019-11-07 00:35:08,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:35:08,628 INFO L225 Difference]: With dead ends: 21 [2019-11-07 00:35:08,628 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 00:35:08,629 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=184, Invalid=686, Unknown=0, NotChecked=0, Total=870 [2019-11-07 00:35:08,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 00:35:08,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 00:35:08,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 00:35:08,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 00:35:08,631 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-07 00:35:08,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:35:08,631 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 00:35:08,631 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-11-07 00:35:08,632 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 00:35:08,632 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 00:35:08,832 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:35:08,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 00:35:08,995 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-11-07 00:35:08,995 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:35:08,995 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:35:08,995 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-07 00:35:08,996 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 00:35:08,996 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 00:35:08,996 INFO L439 ceAbstractionStarter]: At program point L25(line 25) the Hoare annotation is: (let ((.cse0 (+ main_~y~0 main_~z~0))) (and (or (not (= main_~i~0 main_~j~0)) (not (= main_~x~0 1))) (<= .cse0 0) (<= 0 .cse0))) [2019-11-07 00:35:08,996 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 28) no Hoare annotation was computed. [2019-11-07 00:35:08,996 INFO L439 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: (let ((.cse1 (+ main_~i~0 main_~y~0 main_~z~0)) (.cse0 (+ main_~x~0 main_~j~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2019-11-07 00:35:08,997 INFO L443 ceAbstractionStarter]: For program point L19-3(lines 10 28) no Hoare annotation was computed. [2019-11-07 00:35:08,997 INFO L443 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-11-07 00:35:08,997 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 28) no Hoare annotation was computed. [2019-11-07 00:35:08,997 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 28) the Hoare annotation is: true [2019-11-07 00:35:08,997 INFO L443 ceAbstractionStarter]: For program point L24(lines 24 26) no Hoare annotation was computed. [2019-11-07 00:35:08,997 INFO L443 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-11-07 00:35:08,998 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-07 00:35:08,998 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-11-07 00:35:08,998 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-11-07 00:35:08,998 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-07 00:35:08,998 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-07 00:35:08,998 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-11-07 00:35:09,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:35:09 BoogieIcfgContainer [2019-11-07 00:35:09,012 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 00:35:09,014 INFO L168 Benchmark]: Toolchain (without parser) took 4337.66 ms. Allocated memory was 138.4 MB in the beginning and 248.0 MB in the end (delta: 109.6 MB). Free memory was 103.5 MB in the beginning and 142.8 MB in the end (delta: -39.4 MB). Peak memory consumption was 70.2 MB. Max. memory is 7.1 GB. [2019-11-07 00:35:09,015 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 00:35:09,016 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.74 ms. Allocated memory is still 138.4 MB. Free memory was 103.3 MB in the beginning and 93.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-11-07 00:35:09,017 INFO L168 Benchmark]: Boogie Preprocessor took 108.29 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 93.5 MB in the beginning and 179.1 MB in the end (delta: -85.6 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2019-11-07 00:35:09,018 INFO L168 Benchmark]: RCFGBuilder took 234.98 ms. Allocated memory is still 200.8 MB. Free memory was 179.1 MB in the beginning and 167.4 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2019-11-07 00:35:09,019 INFO L168 Benchmark]: TraceAbstraction took 3744.18 ms. Allocated memory was 200.8 MB in the beginning and 248.0 MB in the end (delta: 47.2 MB). Free memory was 166.8 MB in the beginning and 142.8 MB in the end (delta: 23.9 MB). Peak memory consumption was 71.1 MB. Max. memory is 7.1 GB. [2019-11-07 00:35:09,023 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 245.74 ms. Allocated memory is still 138.4 MB. Free memory was 103.3 MB in the beginning and 93.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.29 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 93.5 MB in the beginning and 179.1 MB in the end (delta: -85.6 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 234.98 ms. Allocated memory is still 200.8 MB. Free memory was 179.1 MB in the beginning and 167.4 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3744.18 ms. Allocated memory was 200.8 MB in the beginning and 248.0 MB in the end (delta: 47.2 MB). Free memory was 166.8 MB in the beginning and 142.8 MB in the end (delta: 23.9 MB). Peak memory consumption was 71.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x + j <= i + y + z && i + y + z <= x + j - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. Result: SAFE, OverallTime: 3.6s, OverallIterations: 3, TraceHistogramMax: 4, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 41 SDtfs, 55 SDslu, 232 SDs, 0 SdLazy, 251 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 12 PreInvPairs, 22 NumberOfFragments, 42 HoareAnnotationTreeSize, 12 FomulaSimplifications, 17 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 281 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 10353 SizeOfPredicates, 14 NumberOfNonLiveVariables, 115 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 1/33 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...