/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/ssh-simplified/s3_srvr_1a.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 22:48:07,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 22:48:07,955 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 22:48:07,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 22:48:07,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 22:48:07,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 22:48:07,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 22:48:07,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 22:48:07,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 22:48:07,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 22:48:07,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 22:48:07,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 22:48:07,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 22:48:07,983 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 22:48:07,984 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 22:48:07,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 22:48:07,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 22:48:07,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 22:48:07,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 22:48:07,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 22:48:07,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 22:48:07,993 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 22:48:07,994 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 22:48:07,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 22:48:07,997 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 22:48:08,012 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 22:48:08,036 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 22:48:08,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 22:48:08,040 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 22:48:08,040 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 22:48:08,040 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 22:48:08,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 22:48:08,041 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 22:48:08,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 22:48:08,041 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 22:48:08,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 22:48:08,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 22:48:08,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 22:48:08,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 22:48:08,043 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 22:48:08,044 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 22:48:08,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 22:48:08,044 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 22:48:08,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 22:48:08,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 22:48:08,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 22:48:08,045 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 22:48:08,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 22:48:08,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:48:08,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 22:48:08,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 22:48:08,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 22:48:08,046 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 22:48:08,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 22:48:08,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 22:48:08,047 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 22:48:08,324 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 22:48:08,345 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 22:48:08,349 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 22:48:08,350 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 22:48:08,351 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 22:48:08,352 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1a.cil.c [2019-11-23 22:48:08,428 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/315d3c794/1ac35e83656a47be8c960b10659ddf18/FLAGc0adb15ed [2019-11-23 22:48:08,861 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 22:48:08,862 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ssh-simplified/s3_srvr_1a.cil.c [2019-11-23 22:48:08,876 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/315d3c794/1ac35e83656a47be8c960b10659ddf18/FLAGc0adb15ed [2019-11-23 22:48:09,252 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/315d3c794/1ac35e83656a47be8c960b10659ddf18 [2019-11-23 22:48:09,263 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 22:48:09,265 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 22:48:09,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 22:48:09,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 22:48:09,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 22:48:09,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:48:09" (1/1) ... [2019-11-23 22:48:09,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bed0f99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:09, skipping insertion in model container [2019-11-23 22:48:09,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:48:09" (1/1) ... [2019-11-23 22:48:09,283 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 22:48:09,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 22:48:09,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:48:09,536 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 22:48:09,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:48:09,664 INFO L208 MainTranslator]: Completed translation [2019-11-23 22:48:09,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:09 WrapperNode [2019-11-23 22:48:09,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 22:48:09,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 22:48:09,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 22:48:09,669 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 22:48:09,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:09" (1/1) ... [2019-11-23 22:48:09,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:09" (1/1) ... [2019-11-23 22:48:09,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 22:48:09,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 22:48:09,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 22:48:09,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 22:48:09,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:09" (1/1) ... [2019-11-23 22:48:09,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:09" (1/1) ... [2019-11-23 22:48:09,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:09" (1/1) ... [2019-11-23 22:48:09,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:09" (1/1) ... [2019-11-23 22:48:09,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:09" (1/1) ... [2019-11-23 22:48:09,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:09" (1/1) ... [2019-11-23 22:48:09,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:09" (1/1) ... [2019-11-23 22:48:09,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 22:48:09,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 22:48:09,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 22:48:09,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 22:48:09,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:09" (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 22:48:09,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 22:48:09,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 22:48:10,157 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 22:48:10,158 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-23 22:48:10,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:48:10 BoogieIcfgContainer [2019-11-23 22:48:10,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 22:48:10,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 22:48:10,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 22:48:10,163 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 22:48:10,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:48:09" (1/3) ... [2019-11-23 22:48:10,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@491adf79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:48:10, skipping insertion in model container [2019-11-23 22:48:10,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:09" (2/3) ... [2019-11-23 22:48:10,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@491adf79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:48:10, skipping insertion in model container [2019-11-23 22:48:10,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:48:10" (3/3) ... [2019-11-23 22:48:10,166 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a.cil.c [2019-11-23 22:48:10,173 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 22:48:10,180 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 22:48:10,192 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 22:48:10,216 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 22:48:10,216 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 22:48:10,216 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 22:48:10,217 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 22:48:10,217 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 22:48:10,217 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 22:48:10,217 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 22:48:10,217 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 22:48:10,232 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2019-11-23 22:48:10,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-23 22:48:10,238 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:48:10,239 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-23 22:48:10,240 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:48:10,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:48:10,246 INFO L82 PathProgramCache]: Analyzing trace with hash 963516, now seen corresponding path program 1 times [2019-11-23 22:48:10,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:48:10,254 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209220235] [2019-11-23 22:48:10,254 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:48:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:48:10,377 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 22:48:10,379 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209220235] [2019-11-23 22:48:10,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:48:10,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-23 22:48:10,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218366691] [2019-11-23 22:48:10,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 22:48:10,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:48:10,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 22:48:10,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 22:48:10,407 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 3 states. [2019-11-23 22:48:10,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:48:10,571 INFO L93 Difference]: Finished difference Result 131 states and 218 transitions. [2019-11-23 22:48:10,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 22:48:10,574 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-23 22:48:10,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:48:10,585 INFO L225 Difference]: With dead ends: 131 [2019-11-23 22:48:10,585 INFO L226 Difference]: Without dead ends: 79 [2019-11-23 22:48:10,589 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 22:48:10,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-11-23 22:48:10,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2019-11-23 22:48:10,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-11-23 22:48:10,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 122 transitions. [2019-11-23 22:48:10,637 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 122 transitions. Word has length 4 [2019-11-23 22:48:10,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:48:10,637 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 122 transitions. [2019-11-23 22:48:10,638 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 22:48:10,638 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 122 transitions. [2019-11-23 22:48:10,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-23 22:48:10,639 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:48:10,639 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:48:10,639 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:48:10,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:48:10,640 INFO L82 PathProgramCache]: Analyzing trace with hash -737314741, now seen corresponding path program 1 times [2019-11-23 22:48:10,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:48:10,641 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196058043] [2019-11-23 22:48:10,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:48:10,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:48:10,693 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:48:10,694 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196058043] [2019-11-23 22:48:10,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:48:10,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:48:10,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964357065] [2019-11-23 22:48:10,697 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 22:48:10,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:48:10,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 22:48:10,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 22:48:10,701 INFO L87 Difference]: Start difference. First operand 79 states and 122 transitions. Second operand 3 states. [2019-11-23 22:48:10,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:48:10,816 INFO L93 Difference]: Finished difference Result 157 states and 249 transitions. [2019-11-23 22:48:10,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 22:48:10,818 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-23 22:48:10,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:48:10,822 INFO L225 Difference]: With dead ends: 157 [2019-11-23 22:48:10,822 INFO L226 Difference]: Without dead ends: 117 [2019-11-23 22:48:10,824 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 22:48:10,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2019-11-23 22:48:10,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2019-11-23 22:48:10,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2019-11-23 22:48:10,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 180 transitions. [2019-11-23 22:48:10,863 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 180 transitions. Word has length 9 [2019-11-23 22:48:10,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:48:10,865 INFO L462 AbstractCegarLoop]: Abstraction has 117 states and 180 transitions. [2019-11-23 22:48:10,865 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 22:48:10,865 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 180 transitions. [2019-11-23 22:48:10,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-23 22:48:10,867 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:48:10,867 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:48:10,868 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:48:10,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:48:10,868 INFO L82 PathProgramCache]: Analyzing trace with hash -407668003, now seen corresponding path program 1 times [2019-11-23 22:48:10,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:48:10,869 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765959428] [2019-11-23 22:48:10,869 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:48:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:48:10,905 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-23 22:48:10,905 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765959428] [2019-11-23 22:48:10,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:48:10,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:48:10,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657991969] [2019-11-23 22:48:10,907 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 22:48:10,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:48:10,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 22:48:10,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 22:48:10,908 INFO L87 Difference]: Start difference. First operand 117 states and 180 transitions. Second operand 3 states. [2019-11-23 22:48:10,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:48:10,984 INFO L93 Difference]: Finished difference Result 233 states and 365 transitions. [2019-11-23 22:48:10,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 22:48:10,985 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-11-23 22:48:10,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:48:10,986 INFO L225 Difference]: With dead ends: 233 [2019-11-23 22:48:10,987 INFO L226 Difference]: Without dead ends: 155 [2019-11-23 22:48:10,988 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 22:48:10,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2019-11-23 22:48:11,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2019-11-23 22:48:11,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-11-23 22:48:11,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 239 transitions. [2019-11-23 22:48:11,010 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 239 transitions. Word has length 15 [2019-11-23 22:48:11,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:48:11,010 INFO L462 AbstractCegarLoop]: Abstraction has 155 states and 239 transitions. [2019-11-23 22:48:11,011 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 22:48:11,011 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 239 transitions. [2019-11-23 22:48:11,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-23 22:48:11,016 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:48:11,016 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:48:11,016 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:48:11,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:48:11,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1622407343, now seen corresponding path program 1 times [2019-11-23 22:48:11,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:48:11,020 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672739626] [2019-11-23 22:48:11,020 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:48:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:48:11,098 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-11-23 22:48:11,098 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672739626] [2019-11-23 22:48:11,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:48:11,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:48:11,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789586735] [2019-11-23 22:48:11,100 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 22:48:11,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:48:11,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 22:48:11,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 22:48:11,102 INFO L87 Difference]: Start difference. First operand 155 states and 239 transitions. Second operand 3 states. [2019-11-23 22:48:11,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:48:11,282 INFO L93 Difference]: Finished difference Result 367 states and 579 transitions. [2019-11-23 22:48:11,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 22:48:11,283 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2019-11-23 22:48:11,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:48:11,285 INFO L225 Difference]: With dead ends: 367 [2019-11-23 22:48:11,286 INFO L226 Difference]: Without dead ends: 213 [2019-11-23 22:48:11,290 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 22:48:11,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2019-11-23 22:48:11,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 207. [2019-11-23 22:48:11,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2019-11-23 22:48:11,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 291 transitions. [2019-11-23 22:48:11,343 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 291 transitions. Word has length 30 [2019-11-23 22:48:11,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:48:11,344 INFO L462 AbstractCegarLoop]: Abstraction has 207 states and 291 transitions. [2019-11-23 22:48:11,344 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 22:48:11,344 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 291 transitions. [2019-11-23 22:48:11,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-11-23 22:48:11,346 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:48:11,347 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:48:11,347 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:48:11,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:48:11,347 INFO L82 PathProgramCache]: Analyzing trace with hash 2042852816, now seen corresponding path program 1 times [2019-11-23 22:48:11,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:48:11,348 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488460444] [2019-11-23 22:48:11,348 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:48:11,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:48:11,392 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-11-23 22:48:11,392 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488460444] [2019-11-23 22:48:11,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:48:11,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:48:11,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043346372] [2019-11-23 22:48:11,393 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 22:48:11,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:48:11,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 22:48:11,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 22:48:11,394 INFO L87 Difference]: Start difference. First operand 207 states and 291 transitions. Second operand 3 states. [2019-11-23 22:48:11,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:48:11,445 INFO L93 Difference]: Finished difference Result 415 states and 588 transitions. [2019-11-23 22:48:11,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 22:48:11,446 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2019-11-23 22:48:11,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:48:11,449 INFO L225 Difference]: With dead ends: 415 [2019-11-23 22:48:11,449 INFO L226 Difference]: Without dead ends: 260 [2019-11-23 22:48:11,450 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 22:48:11,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2019-11-23 22:48:11,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 258. [2019-11-23 22:48:11,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2019-11-23 22:48:11,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 365 transitions. [2019-11-23 22:48:11,472 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 365 transitions. Word has length 44 [2019-11-23 22:48:11,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:48:11,472 INFO L462 AbstractCegarLoop]: Abstraction has 258 states and 365 transitions. [2019-11-23 22:48:11,472 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 22:48:11,472 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 365 transitions. [2019-11-23 22:48:11,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-11-23 22:48:11,475 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:48:11,475 INFO L410 BasicCegarLoop]: trace histogram [5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:48:11,476 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:48:11,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:48:11,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1056783528, now seen corresponding path program 1 times [2019-11-23 22:48:11,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:48:11,477 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341134132] [2019-11-23 22:48:11,477 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:48:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:48:11,523 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-11-23 22:48:11,524 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341134132] [2019-11-23 22:48:11,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:48:11,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:48:11,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642499864] [2019-11-23 22:48:11,525 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 22:48:11,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:48:11,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 22:48:11,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 22:48:11,526 INFO L87 Difference]: Start difference. First operand 258 states and 365 transitions. Second operand 3 states. [2019-11-23 22:48:11,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:48:11,625 INFO L93 Difference]: Finished difference Result 523 states and 752 transitions. [2019-11-23 22:48:11,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 22:48:11,626 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-11-23 22:48:11,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:48:11,627 INFO L225 Difference]: With dead ends: 523 [2019-11-23 22:48:11,627 INFO L226 Difference]: Without dead ends: 188 [2019-11-23 22:48:11,629 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 22:48:11,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2019-11-23 22:48:11,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 185. [2019-11-23 22:48:11,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2019-11-23 22:48:11,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 244 transitions. [2019-11-23 22:48:11,639 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 244 transitions. Word has length 47 [2019-11-23 22:48:11,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:48:11,640 INFO L462 AbstractCegarLoop]: Abstraction has 185 states and 244 transitions. [2019-11-23 22:48:11,640 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 22:48:11,640 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 244 transitions. [2019-11-23 22:48:11,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-11-23 22:48:11,643 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:48:11,643 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:48:11,643 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:48:11,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:48:11,644 INFO L82 PathProgramCache]: Analyzing trace with hash -439474765, now seen corresponding path program 1 times [2019-11-23 22:48:11,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:48:11,644 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194953253] [2019-11-23 22:48:11,645 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:48:11,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:48:11,713 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-11-23 22:48:11,714 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194953253] [2019-11-23 22:48:11,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:48:11,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:48:11,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313700449] [2019-11-23 22:48:11,719 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 22:48:11,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:48:11,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 22:48:11,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 22:48:11,720 INFO L87 Difference]: Start difference. First operand 185 states and 244 transitions. Second operand 3 states. [2019-11-23 22:48:11,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:48:11,742 INFO L93 Difference]: Finished difference Result 306 states and 375 transitions. [2019-11-23 22:48:11,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 22:48:11,743 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2019-11-23 22:48:11,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:48:11,744 INFO L225 Difference]: With dead ends: 306 [2019-11-23 22:48:11,744 INFO L226 Difference]: Without dead ends: 0 [2019-11-23 22:48:11,745 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 22:48:11,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-23 22:48:11,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-23 22:48:11,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-23 22:48:11,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-23 22:48:11,746 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 75 [2019-11-23 22:48:11,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:48:11,748 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-23 22:48:11,748 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 22:48:11,748 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-23 22:48:11,748 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-23 22:48:11,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-23 22:48:12,022 INFO L444 ceAbstractionStarter]: For program point L60(lines 60 189) no Hoare annotation was computed. [2019-11-23 22:48:12,023 INFO L444 ceAbstractionStarter]: For program point L151-1(lines 74 183) no Hoare annotation was computed. [2019-11-23 22:48:12,023 INFO L444 ceAbstractionStarter]: For program point L52(lines 52 193) no Hoare annotation was computed. [2019-11-23 22:48:12,023 INFO L444 ceAbstractionStarter]: For program point L85-1(lines 74 183) no Hoare annotation was computed. [2019-11-23 22:48:12,024 INFO L440 ceAbstractionStarter]: At program point L176(lines 22 211) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~blastFlag~0 3))) (or (and .cse0 (<= 8640 ULTIMATE.start_main_~s__state~0) (not (= ULTIMATE.start_main_~s__hit~0 0))) (<= ULTIMATE.start_main_~blastFlag~0 2) (and (<= 8672 ULTIMATE.start_main_~s__state~0) .cse0))) [2019-11-23 22:48:12,024 INFO L444 ceAbstractionStarter]: For program point L44(lines 44 197) no Hoare annotation was computed. [2019-11-23 22:48:12,024 INFO L444 ceAbstractionStarter]: For program point L135(lines 135 139) no Hoare annotation was computed. [2019-11-23 22:48:12,024 INFO L440 ceAbstractionStarter]: At program point L69(lines 68 185) the Hoare annotation is: (let ((.cse0 (<= 8640 ULTIMATE.start_main_~s__state~0))) (or (and (<= ULTIMATE.start_main_~blastFlag~0 2) .cse0) (and (<= ULTIMATE.start_main_~blastFlag~0 3) .cse0 (not (= ULTIMATE.start_main_~s__hit~0 0))))) [2019-11-23 22:48:12,024 INFO L444 ceAbstractionStarter]: For program point L36(lines 36 201) no Hoare annotation was computed. [2019-11-23 22:48:12,024 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-23 22:48:12,025 INFO L440 ceAbstractionStarter]: At program point L61(lines 60 189) the Hoare annotation is: (<= ULTIMATE.start_main_~blastFlag~0 2) [2019-11-23 22:48:12,025 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-23 22:48:12,025 INFO L440 ceAbstractionStarter]: At program point L53(lines 52 193) the Hoare annotation is: (<= ULTIMATE.start_main_~blastFlag~0 2) [2019-11-23 22:48:12,025 INFO L440 ceAbstractionStarter]: At program point L45(lines 44 197) the Hoare annotation is: (<= ULTIMATE.start_main_~blastFlag~0 2) [2019-11-23 22:48:12,025 INFO L444 ceAbstractionStarter]: For program point L78-1(lines 78 80) no Hoare annotation was computed. [2019-11-23 22:48:12,025 INFO L444 ceAbstractionStarter]: For program point L169-1(lines 74 183) no Hoare annotation was computed. [2019-11-23 22:48:12,026 INFO L440 ceAbstractionStarter]: At program point L37(lines 36 201) the Hoare annotation is: (<= ULTIMATE.start_main_~blastFlag~0 2) [2019-11-23 22:48:12,026 INFO L444 ceAbstractionStarter]: For program point L29(lines 29 204) no Hoare annotation was computed. [2019-11-23 22:48:12,027 INFO L440 ceAbstractionStarter]: At program point L120(lines 113 122) the Hoare annotation is: (<= ULTIMATE.start_main_~blastFlag~0 2) [2019-11-23 22:48:12,027 INFO L440 ceAbstractionStarter]: At program point L112(lines 105 123) the Hoare annotation is: (<= ULTIMATE.start_main_~blastFlag~0 2) [2019-11-23 22:48:12,027 INFO L444 ceAbstractionStarter]: For program point L162-1(lines 162 164) no Hoare annotation was computed. [2019-11-23 22:48:12,027 INFO L440 ceAbstractionStarter]: At program point L30(lines 29 204) the Hoare annotation is: (<= ULTIMATE.start_main_~blastFlag~0 2) [2019-11-23 22:48:12,028 INFO L444 ceAbstractionStarter]: For program point L105(lines 105 123) no Hoare annotation was computed. [2019-11-23 22:48:12,028 INFO L444 ceAbstractionStarter]: For program point L72(lines 72 183) no Hoare annotation was computed. [2019-11-23 22:48:12,028 INFO L444 ceAbstractionStarter]: For program point L64(lines 64 187) no Hoare annotation was computed. [2019-11-23 22:48:12,028 INFO L444 ceAbstractionStarter]: For program point L56(lines 56 191) no Hoare annotation was computed. [2019-11-23 22:48:12,028 INFO L444 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2019-11-23 22:48:12,028 INFO L447 ceAbstractionStarter]: At program point L213(lines 8 217) the Hoare annotation is: true [2019-11-23 22:48:12,028 INFO L444 ceAbstractionStarter]: For program point L114(lines 114 118) no Hoare annotation was computed. [2019-11-23 22:48:12,029 INFO L444 ceAbstractionStarter]: For program point L48(lines 48 195) no Hoare annotation was computed. [2019-11-23 22:48:12,029 INFO L444 ceAbstractionStarter]: For program point L172(lines 172 174) no Hoare annotation was computed. [2019-11-23 22:48:12,029 INFO L444 ceAbstractionStarter]: For program point L106(lines 106 110) no Hoare annotation was computed. [2019-11-23 22:48:12,029 INFO L440 ceAbstractionStarter]: At program point L73(lines 72 183) the Hoare annotation is: (and (<= 8672 ULTIMATE.start_main_~s__state~0) (<= ULTIMATE.start_main_~blastFlag~0 3)) [2019-11-23 22:48:12,029 INFO L444 ceAbstractionStarter]: For program point L40(lines 40 199) no Hoare annotation was computed. [2019-11-23 22:48:12,031 INFO L440 ceAbstractionStarter]: At program point L65(lines 64 187) the Hoare annotation is: (let ((.cse0 (<= 8640 ULTIMATE.start_main_~s__state~0))) (or (and (<= ULTIMATE.start_main_~blastFlag~0 2) .cse0) (and (<= ULTIMATE.start_main_~blastFlag~0 3) .cse0 (not (= ULTIMATE.start_main_~s__hit~0 0))))) [2019-11-23 22:48:12,031 INFO L444 ceAbstractionStarter]: For program point L32(lines 32 203) no Hoare annotation was computed. [2019-11-23 22:48:12,031 INFO L440 ceAbstractionStarter]: At program point L57(lines 56 191) the Hoare annotation is: (<= ULTIMATE.start_main_~blastFlag~0 2) [2019-11-23 22:48:12,031 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 215) no Hoare annotation was computed. [2019-11-23 22:48:12,031 INFO L440 ceAbstractionStarter]: At program point L49(lines 48 195) the Hoare annotation is: (<= ULTIMATE.start_main_~blastFlag~0 2) [2019-11-23 22:48:12,032 INFO L440 ceAbstractionStarter]: At program point L173(lines 8 217) the Hoare annotation is: false [2019-11-23 22:48:12,032 INFO L440 ceAbstractionStarter]: At program point L41(lines 40 199) the Hoare annotation is: (<= ULTIMATE.start_main_~blastFlag~0 2) [2019-11-23 22:48:12,032 INFO L440 ceAbstractionStarter]: At program point L33(lines 32 203) the Hoare annotation is: (<= ULTIMATE.start_main_~blastFlag~0 2) [2019-11-23 22:48:12,032 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-23 22:48:12,032 INFO L447 ceAbstractionStarter]: At program point L216(lines 8 217) the Hoare annotation is: true [2019-11-23 22:48:12,032 INFO L444 ceAbstractionStarter]: For program point L68(lines 68 185) no Hoare annotation was computed. [2019-11-23 22:48:12,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:48:12 BoogieIcfgContainer [2019-11-23 22:48:12,065 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 22:48:12,069 INFO L168 Benchmark]: Toolchain (without parser) took 2803.05 ms. Allocated memory was 138.9 MB in the beginning and 235.4 MB in the end (delta: 96.5 MB). Free memory was 103.3 MB in the beginning and 113.8 MB in the end (delta: -10.5 MB). Peak memory consumption was 85.9 MB. Max. memory is 7.1 GB. [2019-11-23 22:48:12,077 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-11-23 22:48:12,080 INFO L168 Benchmark]: CACSL2BoogieTranslator took 401.76 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 103.1 MB in the beginning and 181.8 MB in the end (delta: -78.7 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2019-11-23 22:48:12,081 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.26 ms. Allocated memory is still 202.9 MB. Free memory was 181.8 MB in the beginning and 179.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-11-23 22:48:12,082 INFO L168 Benchmark]: Boogie Preprocessor took 27.91 ms. Allocated memory is still 202.9 MB. Free memory was 179.7 MB in the beginning and 178.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-11-23 22:48:12,083 INFO L168 Benchmark]: RCFGBuilder took 412.26 ms. Allocated memory is still 202.9 MB. Free memory was 178.4 MB in the beginning and 159.8 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2019-11-23 22:48:12,088 INFO L168 Benchmark]: TraceAbstraction took 1905.54 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 159.8 MB in the beginning and 113.8 MB in the end (delta: 45.9 MB). Peak memory consumption was 78.4 MB. Max. memory is 7.1 GB. [2019-11-23 22:48:12,101 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 401.76 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 103.1 MB in the beginning and 181.8 MB in the end (delta: -78.7 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.26 ms. Allocated memory is still 202.9 MB. Free memory was 181.8 MB in the beginning and 179.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.91 ms. Allocated memory is still 202.9 MB. Free memory was 179.7 MB in the beginning and 178.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 412.26 ms. Allocated memory is still 202.9 MB. Free memory was 178.4 MB in the beginning and 159.8 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1905.54 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 159.8 MB in the beginning and 113.8 MB in the end (delta: 45.9 MB). Peak memory consumption was 78.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 215]: 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: 36]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: (blastFlag <= 2 && 8640 <= s__state) || ((blastFlag <= 3 && 8640 <= s__state) && !(s__hit == 0)) - InvariantResult [Line: 105]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((blastFlag <= 3 && 8640 <= s__state) && !(s__hit == 0)) || blastFlag <= 2) || (8672 <= s__state && blastFlag <= 3) - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 8672 <= s__state && blastFlag <= 3 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (blastFlag <= 2 && 8640 <= s__state) || ((blastFlag <= 3 && 8640 <= s__state) && !(s__hit == 0)) - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: blastFlag <= 2 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 7, TraceHistogramMax: 6, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 427 SDtfs, 251 SDslu, 292 SDs, 0 SdLazy, 196 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=258occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 11 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 18 PreInvPairs, 85 NumberOfFragments, 103 HoareAnnotationTreeSize, 18 FomulaSimplifications, 585 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 60 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 224 NumberOfCodeBlocks, 224 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 217 ConstructedInterpolants, 0 QuantifiedInterpolants, 22669 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 202/202 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...