/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/cggmp2005_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 22:11:18,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 22:11:18,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 22:11:18,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 22:11:18,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 22:11:18,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 22:11:18,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 22:11:18,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 22:11:18,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 22:11:18,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 22:11:18,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 22:11:18,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 22:11:18,586 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 22:11:18,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 22:11:18,588 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 22:11:18,590 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 22:11:18,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 22:11:18,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 22:11:18,596 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 22:11:18,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 22:11:18,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 22:11:18,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 22:11:18,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 22:11:18,603 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 22:11:18,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 22:11:18,615 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 [2019-11-23 22:11:18,629 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 22:11:18,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 22:11:18,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 22:11:18,631 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 22:11:18,631 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 22:11:18,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 22:11:18,631 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 22:11:18,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 22:11:18,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 22:11:18,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 22:11:18,632 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 22:11:18,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 22:11:18,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 22:11:18,633 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 22:11:18,633 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 22:11:18,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 22:11:18,633 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 22:11:18,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 22:11:18,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 22:11:18,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 22:11:18,634 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 22:11:18,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 22:11:18,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:11:18,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 22:11:18,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 22:11:18,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 22:11:18,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 22:11:18,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 22:11:18,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 22:11:18,636 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 22:11:18,952 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 22:11:18,972 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 22:11:18,976 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 22:11:18,977 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 22:11:18,977 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 22:11:18,978 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/cggmp2005_variant.i [2019-11-23 22:11:19,050 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c4b74dea/f8011a2e94f84f60a6913fee0ef78aba/FLAG935257b53 [2019-11-23 22:11:19,458 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 22:11:19,459 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005_variant.i [2019-11-23 22:11:19,466 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c4b74dea/f8011a2e94f84f60a6913fee0ef78aba/FLAG935257b53 [2019-11-23 22:11:19,883 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c4b74dea/f8011a2e94f84f60a6913fee0ef78aba [2019-11-23 22:11:19,892 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 22:11:19,894 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 22:11:19,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 22:11:19,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 22:11:19,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 22:11:19,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:11:19" (1/1) ... [2019-11-23 22:11:19,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@254d4563 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:19, skipping insertion in model container [2019-11-23 22:11:19,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:11:19" (1/1) ... [2019-11-23 22:11:19,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 22:11:19,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 22:11:20,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:11:20,141 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 22:11:20,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:11:20,172 INFO L208 MainTranslator]: Completed translation [2019-11-23 22:11:20,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:20 WrapperNode [2019-11-23 22:11:20,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 22:11:20,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 22:11:20,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 22:11:20,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 22:11:20,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:20" (1/1) ... [2019-11-23 22:11:20,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:20" (1/1) ... [2019-11-23 22:11:20,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 22:11:20,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 22:11:20,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 22:11:20,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 22:11:20,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:20" (1/1) ... [2019-11-23 22:11:20,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:20" (1/1) ... [2019-11-23 22:11:20,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:20" (1/1) ... [2019-11-23 22:11:20,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:20" (1/1) ... [2019-11-23 22:11:20,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:20" (1/1) ... [2019-11-23 22:11:20,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:20" (1/1) ... [2019-11-23 22:11:20,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:20" (1/1) ... [2019-11-23 22:11:20,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 22:11:20,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 22:11:20,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 22:11:20,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 22:11:20,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:11:20,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 22:11:20,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 22:11:20,518 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 22:11:20,518 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-23 22:11:20,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:11:20 BoogieIcfgContainer [2019-11-23 22:11:20,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 22:11:20,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 22:11:20,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 22:11:20,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 22:11:20,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:11:19" (1/3) ... [2019-11-23 22:11:20,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3725e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:11:20, skipping insertion in model container [2019-11-23 22:11:20,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:20" (2/3) ... [2019-11-23 22:11:20,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3725e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:11:20, skipping insertion in model container [2019-11-23 22:11:20,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:11:20" (3/3) ... [2019-11-23 22:11:20,528 INFO L109 eAbstractionObserver]: Analyzing ICFG cggmp2005_variant.i [2019-11-23 22:11:20,537 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 22:11:20,543 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 22:11:20,554 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 22:11:20,581 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 22:11:20,581 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 22:11:20,582 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 22:11:20,582 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 22:11:20,582 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 22:11:20,582 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 22:11:20,582 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 22:11:20,582 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 22:11:20,596 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-11-23 22:11:20,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-23 22:11:20,601 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:11:20,602 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-23 22:11:20,602 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:11:20,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:11:20,607 INFO L82 PathProgramCache]: Analyzing trace with hash 922199370, now seen corresponding path program 1 times [2019-11-23 22:11:20,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:11:20,616 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996503903] [2019-11-23 22:11:20,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:11:20,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:11:20,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:11:20,726 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996503903] [2019-11-23 22:11:20,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:11:20,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-23 22:11:20,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934690105] [2019-11-23 22:11:20,736 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-23 22:11:20,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:11:20,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-23 22:11:20,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-23 22:11:20,754 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2019-11-23 22:11:20,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:11:20,772 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2019-11-23 22:11:20,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-23 22:11:20,774 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-11-23 22:11:20,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:11:20,784 INFO L225 Difference]: With dead ends: 19 [2019-11-23 22:11:20,785 INFO L226 Difference]: Without dead ends: 7 [2019-11-23 22:11:20,788 INFO L630 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 [2019-11-23 22:11:20,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-11-23 22:11:20,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-11-23 22:11:20,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-23 22:11:20,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-11-23 22:11:20,826 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 6 [2019-11-23 22:11:20,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:11:20,826 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-11-23 22:11:20,827 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-23 22:11:20,827 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-11-23 22:11:20,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-23 22:11:20,828 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:11:20,828 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-23 22:11:20,828 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:11:20,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:11:20,829 INFO L82 PathProgramCache]: Analyzing trace with hash 922080206, now seen corresponding path program 1 times [2019-11-23 22:11:20,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:11:20,830 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724309110] [2019-11-23 22:11:20,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:11:20,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:11:20,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:11:20,883 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724309110] [2019-11-23 22:11:20,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:11:20,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:11:20,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940732993] [2019-11-23 22:11:20,886 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 22:11:20,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:11:20,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 22:11:20,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 22:11:20,888 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 3 states. [2019-11-23 22:11:20,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:11:20,921 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-11-23 22:11:20,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 22:11:20,922 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-23 22:11:20,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:11:20,923 INFO L225 Difference]: With dead ends: 12 [2019-11-23 22:11:20,923 INFO L226 Difference]: Without dead ends: 8 [2019-11-23 22:11:20,925 INFO L630 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 [2019-11-23 22:11:20,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-11-23 22:11:20,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-11-23 22:11:20,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-23 22:11:20,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-11-23 22:11:20,929 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2019-11-23 22:11:20,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:11:20,929 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-11-23 22:11:20,929 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 22:11:20,929 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-11-23 22:11:20,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-23 22:11:20,930 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:11:20,930 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:11:20,930 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:11:20,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:11:20,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1478619311, now seen corresponding path program 1 times [2019-11-23 22:11:20,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:11:20,931 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114290439] [2019-11-23 22:11:20,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:11:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:11:21,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:11:21,254 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114290439] [2019-11-23 22:11:21,255 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028767210] [2019-11-23 22:11:21,255 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 [2019-11-23 22:11:21,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:11:21,292 WARN L253 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-23 22:11:21,298 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:11:21,487 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:11:21,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:11:21,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-23 22:11:21,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-11-23 22:11:21,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645346997] [2019-11-23 22:11:21,526 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-23 22:11:21,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:11:21,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-23 22:11:21,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-11-23 22:11:21,527 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 11 states. [2019-11-23 22:11:21,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:11:21,659 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2019-11-23 22:11:21,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-23 22:11:21,661 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2019-11-23 22:11:21,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:11:21,662 INFO L225 Difference]: With dead ends: 13 [2019-11-23 22:11:21,662 INFO L226 Difference]: Without dead ends: 9 [2019-11-23 22:11:21,663 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-11-23 22:11:21,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-23 22:11:21,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-11-23 22:11:21,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-23 22:11:21,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-23 22:11:21,666 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2019-11-23 22:11:21,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:11:21,667 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-23 22:11:21,667 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-23 22:11:21,667 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-23 22:11:21,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-23 22:11:21,668 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:11:21,668 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2019-11-23 22:11:21,872 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:11:21,872 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:11:21,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:11:21,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1409106990, now seen corresponding path program 2 times [2019-11-23 22:11:21,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:11:21,875 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528080935] [2019-11-23 22:11:21,875 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:11:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:11:22,098 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-23 22:11:22,098 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528080935] [2019-11-23 22:11:22,099 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413132665] [2019-11-23 22:11:22,099 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 [2019-11-23 22:11:22,139 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-23 22:11:22,140 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-23 22:11:22,141 WARN L253 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 23 conjunts are in the unsatisfiable core [2019-11-23 22:11:22,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:11:22,285 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:11:22,317 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:11:22,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-23 22:11:22,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2019-11-23 22:11:22,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204726273] [2019-11-23 22:11:22,320 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-23 22:11:22,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:11:22,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-23 22:11:22,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2019-11-23 22:11:22,321 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 12 states. [2019-11-23 22:11:22,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:11:22,619 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2019-11-23 22:11:22,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-23 22:11:22,620 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 8 [2019-11-23 22:11:22,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:11:22,620 INFO L225 Difference]: With dead ends: 12 [2019-11-23 22:11:22,620 INFO L226 Difference]: Without dead ends: 0 [2019-11-23 22:11:22,621 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2019-11-23 22:11:22,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-23 22:11:22,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-23 22:11:22,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-23 22:11:22,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-23 22:11:22,622 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-23 22:11:22,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:11:22,623 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-23 22:11:22,623 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-23 22:11:22,623 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-23 22:11:22,623 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-23 22:11:22,830 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:11:22,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-23 22:11:22,892 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-23 22:11:22,892 INFO L444 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-23 22:11:22,893 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-23 22:11:22,893 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-23 22:11:22,893 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-23 22:11:22,893 INFO L447 ceAbstractionStarter]: At program point L22(lines 10 23) the Hoare annotation is: true [2019-11-23 22:11:22,893 INFO L444 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-11-23 22:11:22,894 INFO L440 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~lo~0 (* 2 ULTIMATE.start_main_~mid~0)))) (and (<= ULTIMATE.start_main_~hi~0 .cse0) (<= .cse0 ULTIMATE.start_main_~hi~0) (<= ULTIMATE.start_main_~lo~0 ULTIMATE.start_main_~hi~0))) [2019-11-23 22:11:22,894 INFO L444 ceAbstractionStarter]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2019-11-23 22:11:22,894 INFO L444 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-23 22:11:22,894 INFO L447 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2019-11-23 22:11:22,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:11:22 BoogieIcfgContainer [2019-11-23 22:11:22,909 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 22:11:22,912 INFO L168 Benchmark]: Toolchain (without parser) took 3016.90 ms. Allocated memory was 143.1 MB in the beginning and 229.1 MB in the end (delta: 86.0 MB). Free memory was 100.8 MB in the beginning and 148.3 MB in the end (delta: -47.4 MB). Peak memory consumption was 38.6 MB. Max. memory is 7.1 GB. [2019-11-23 22:11:22,913 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 143.1 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-11-23 22:11:22,913 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.75 ms. Allocated memory is still 143.1 MB. Free memory was 100.6 MB in the beginning and 91.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-11-23 22:11:22,914 INFO L168 Benchmark]: Boogie Procedure Inliner took 113.90 ms. Allocated memory was 143.1 MB in the beginning and 199.8 MB in the end (delta: 56.6 MB). Free memory was 91.3 MB in the beginning and 178.5 MB in the end (delta: -87.2 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2019-11-23 22:11:22,915 INFO L168 Benchmark]: Boogie Preprocessor took 16.49 ms. Allocated memory is still 199.8 MB. Free memory was 178.5 MB in the beginning and 177.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-11-23 22:11:22,916 INFO L168 Benchmark]: RCFGBuilder took 215.18 ms. Allocated memory is still 199.8 MB. Free memory was 177.1 MB in the beginning and 166.9 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-11-23 22:11:22,917 INFO L168 Benchmark]: TraceAbstraction took 2388.44 ms. Allocated memory was 199.8 MB in the beginning and 229.1 MB in the end (delta: 29.4 MB). Free memory was 166.2 MB in the beginning and 148.3 MB in the end (delta: 18.0 MB). Peak memory consumption was 47.3 MB. Max. memory is 7.1 GB. [2019-11-23 22:11:22,922 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 143.1 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 278.75 ms. Allocated memory is still 143.1 MB. Free memory was 100.6 MB in the beginning and 91.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 113.90 ms. Allocated memory was 143.1 MB in the beginning and 199.8 MB in the end (delta: 56.6 MB). Free memory was 91.3 MB in the beginning and 178.5 MB in the end (delta: -87.2 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 16.49 ms. Allocated memory is still 199.8 MB. Free memory was 178.5 MB in the beginning and 177.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 215.18 ms. Allocated memory is still 199.8 MB. Free memory was 177.1 MB in the beginning and 166.9 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2388.44 ms. Allocated memory was 199.8 MB in the beginning and 229.1 MB in the end (delta: 29.4 MB). Free memory was 166.2 MB in the beginning and 148.3 MB in the end (delta: 18.0 MB). Peak memory consumption was 47.3 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: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: (hi <= lo + 2 * mid && lo + 2 * mid <= hi) && lo <= hi - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 24 SDtfs, 17 SDslu, 23 SDs, 0 SdLazy, 89 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 20 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 86 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 1979 SizeOfPredicates, 10 NumberOfNonLiveVariables, 61 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 1/8 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...