/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/eca-rers2012/Problem11_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 01:18:07,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 01:18:07,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 01:18:07,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-22 01:18:07,696 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 01:18:07,751 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 01:18:07,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 01:18:07,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 01:18:07,756 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 01:18:07,757 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 01:18:07,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 01:18:07,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 01:18:07,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 01:18:07,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 01:18:07,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 01:18:07,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 01:18:07,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 01:18:07,760 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 01:18:07,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 01:18:07,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 01:18:07,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 01:18:07,761 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 01:18:07,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 01:18:07,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 01:18:07,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 01:18:07,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 01:18:07,762 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 01:18:07,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 01:18:07,763 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 01:18:07,763 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 01:18:07,763 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 01:18:08,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 01:18:08,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 01:18:08,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 01:18:08,269 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 01:18:08,270 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 01:18:08,271 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label41.c [2020-12-22 01:18:08,364 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50bf42bae/ebb163f8676b4100a4fc1aa956aa2840/FLAGa28c12c07 [2020-12-22 01:18:09,252 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 01:18:09,253 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label41.c [2020-12-22 01:18:09,269 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50bf42bae/ebb163f8676b4100a4fc1aa956aa2840/FLAGa28c12c07 [2020-12-22 01:18:09,428 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50bf42bae/ebb163f8676b4100a4fc1aa956aa2840 [2020-12-22 01:18:09,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 01:18:09,434 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 01:18:09,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 01:18:09,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 01:18:09,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 01:18:09,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:18:09" (1/1) ... [2020-12-22 01:18:09,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41e6123f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:18:09, skipping insertion in model container [2020-12-22 01:18:09,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:18:09" (1/1) ... [2020-12-22 01:18:09,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 01:18:09,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 01:18:09,753 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label41.c[3129,3142] [2020-12-22 01:18:10,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 01:18:10,209 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 01:18:10,230 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label41.c[3129,3142] [2020-12-22 01:18:10,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 01:18:10,362 INFO L208 MainTranslator]: Completed translation [2020-12-22 01:18:10,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:18:10 WrapperNode [2020-12-22 01:18:10,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 01:18:10,364 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 01:18:10,364 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 01:18:10,364 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 01:18:10,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:18:10" (1/1) ... [2020-12-22 01:18:10,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:18:10" (1/1) ... [2020-12-22 01:18:10,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 01:18:10,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 01:18:10,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 01:18:10,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 01:18:10,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:18:10" (1/1) ... [2020-12-22 01:18:10,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:18:10" (1/1) ... [2020-12-22 01:18:10,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:18:10" (1/1) ... [2020-12-22 01:18:10,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:18:10" (1/1) ... [2020-12-22 01:18:10,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:18:10" (1/1) ... [2020-12-22 01:18:10,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:18:10" (1/1) ... [2020-12-22 01:18:10,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:18:10" (1/1) ... [2020-12-22 01:18:10,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 01:18:10,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 01:18:10,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 01:18:10,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 01:18:10,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:18:10" (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 [2020-12-22 01:18:10,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 01:18:10,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 01:18:10,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 01:18:10,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 01:18:12,950 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 01:18:12,951 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-22 01:18:12,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:18:12 BoogieIcfgContainer [2020-12-22 01:18:12,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 01:18:12,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 01:18:12,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 01:18:12,970 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 01:18:12,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:18:09" (1/3) ... [2020-12-22 01:18:12,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f75892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:18:12, skipping insertion in model container [2020-12-22 01:18:12,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:18:10" (2/3) ... [2020-12-22 01:18:12,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f75892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:18:12, skipping insertion in model container [2020-12-22 01:18:12,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:18:12" (3/3) ... [2020-12-22 01:18:12,976 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label41.c [2020-12-22 01:18:12,983 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 01:18:12,989 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 01:18:13,011 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-22 01:18:13,041 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 01:18:13,042 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 01:18:13,042 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 01:18:13,042 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 01:18:13,042 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 01:18:13,043 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 01:18:13,043 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 01:18:13,043 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 01:18:13,078 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states. [2020-12-22 01:18:13,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 01:18:13,088 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:13,089 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:13,090 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:13,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:13,105 INFO L82 PathProgramCache]: Analyzing trace with hash -85512855, now seen corresponding path program 1 times [2020-12-22 01:18:13,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:13,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280923725] [2020-12-22 01:18:13,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:13,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:18:13,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280923725] [2020-12-22 01:18:13,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:13,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 01:18:13,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395646910] [2020-12-22 01:18:13,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:18:13,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:13,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:18:13,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:13,473 INFO L87 Difference]: Start difference. First operand 283 states. Second operand 3 states. [2020-12-22 01:18:15,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:15,025 INFO L93 Difference]: Finished difference Result 761 states and 1345 transitions. [2020-12-22 01:18:15,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:18:15,028 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-12-22 01:18:15,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:15,046 INFO L225 Difference]: With dead ends: 761 [2020-12-22 01:18:15,046 INFO L226 Difference]: Without dead ends: 413 [2020-12-22 01:18:15,052 INFO L677 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 [2020-12-22 01:18:15,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-12-22 01:18:15,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2020-12-22 01:18:15,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-12-22 01:18:15,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 599 transitions. [2020-12-22 01:18:15,134 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 599 transitions. Word has length 21 [2020-12-22 01:18:15,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:15,135 INFO L481 AbstractCegarLoop]: Abstraction has 413 states and 599 transitions. [2020-12-22 01:18:15,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:18:15,135 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 599 transitions. [2020-12-22 01:18:15,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-12-22 01:18:15,139 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:15,140 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:15,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 01:18:15,140 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:15,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:15,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1756349648, now seen corresponding path program 1 times [2020-12-22 01:18:15,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:15,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187855] [2020-12-22 01:18:15,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:15,469 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:18:15,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187855] [2020-12-22 01:18:15,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:15,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 01:18:15,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592370484] [2020-12-22 01:18:15,474 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:18:15,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:15,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:18:15,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:15,476 INFO L87 Difference]: Start difference. First operand 413 states and 599 transitions. Second operand 3 states. [2020-12-22 01:18:16,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:16,601 INFO L93 Difference]: Finished difference Result 1211 states and 1763 transitions. [2020-12-22 01:18:16,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:18:16,602 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 89 [2020-12-22 01:18:16,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:16,612 INFO L225 Difference]: With dead ends: 1211 [2020-12-22 01:18:16,612 INFO L226 Difference]: Without dead ends: 800 [2020-12-22 01:18:16,615 INFO L677 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 [2020-12-22 01:18:16,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2020-12-22 01:18:16,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 789. [2020-12-22 01:18:16,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2020-12-22 01:18:16,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1083 transitions. [2020-12-22 01:18:16,697 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1083 transitions. Word has length 89 [2020-12-22 01:18:16,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:16,698 INFO L481 AbstractCegarLoop]: Abstraction has 789 states and 1083 transitions. [2020-12-22 01:18:16,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:18:16,698 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1083 transitions. [2020-12-22 01:18:16,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-12-22 01:18:16,707 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:16,707 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:16,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 01:18:16,708 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:16,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:16,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1927914827, now seen corresponding path program 1 times [2020-12-22 01:18:16,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:16,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951767551] [2020-12-22 01:18:16,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:16,916 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:18:16,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951767551] [2020-12-22 01:18:16,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:16,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 01:18:16,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440963393] [2020-12-22 01:18:16,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:18:16,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:16,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:18:16,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:16,923 INFO L87 Difference]: Start difference. First operand 789 states and 1083 transitions. Second operand 3 states. [2020-12-22 01:18:18,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:18,071 INFO L93 Difference]: Finished difference Result 2316 states and 3182 transitions. [2020-12-22 01:18:18,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:18:18,072 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 91 [2020-12-22 01:18:18,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:18,084 INFO L225 Difference]: With dead ends: 2316 [2020-12-22 01:18:18,084 INFO L226 Difference]: Without dead ends: 1529 [2020-12-22 01:18:18,086 INFO L677 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 [2020-12-22 01:18:18,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2020-12-22 01:18:18,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1526. [2020-12-22 01:18:18,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1526 states. [2020-12-22 01:18:18,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1857 transitions. [2020-12-22 01:18:18,148 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1857 transitions. Word has length 91 [2020-12-22 01:18:18,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:18,158 INFO L481 AbstractCegarLoop]: Abstraction has 1526 states and 1857 transitions. [2020-12-22 01:18:18,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:18:18,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1857 transitions. [2020-12-22 01:18:18,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-12-22 01:18:18,171 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:18,171 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:18,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 01:18:18,172 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:18,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:18,173 INFO L82 PathProgramCache]: Analyzing trace with hash -682660523, now seen corresponding path program 1 times [2020-12-22 01:18:18,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:18,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277541315] [2020-12-22 01:18:18,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:18,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:18,355 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:18:18,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277541315] [2020-12-22 01:18:18,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:18,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:18:18,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060770399] [2020-12-22 01:18:18,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:18:18,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:18,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:18:18,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:18,358 INFO L87 Difference]: Start difference. First operand 1526 states and 1857 transitions. Second operand 3 states. [2020-12-22 01:18:19,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:19,406 INFO L93 Difference]: Finished difference Result 3257 states and 4125 transitions. [2020-12-22 01:18:19,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:18:19,407 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-12-22 01:18:19,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:19,423 INFO L225 Difference]: With dead ends: 3257 [2020-12-22 01:18:19,424 INFO L226 Difference]: Without dead ends: 1917 [2020-12-22 01:18:19,427 INFO L677 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 [2020-12-22 01:18:19,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2020-12-22 01:18:19,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1914. [2020-12-22 01:18:19,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1914 states. [2020-12-22 01:18:19,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2385 transitions. [2020-12-22 01:18:19,481 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2385 transitions. Word has length 148 [2020-12-22 01:18:19,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:19,484 INFO L481 AbstractCegarLoop]: Abstraction has 1914 states and 2385 transitions. [2020-12-22 01:18:19,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:18:19,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2385 transitions. [2020-12-22 01:18:19,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-12-22 01:18:19,500 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:19,502 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:19,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 01:18:19,502 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:19,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:19,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1487557496, now seen corresponding path program 1 times [2020-12-22 01:18:19,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:19,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815197074] [2020-12-22 01:18:19,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:19,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:19,832 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-12-22 01:18:19,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815197074] [2020-12-22 01:18:19,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:19,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:18:19,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361320602] [2020-12-22 01:18:19,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:18:19,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:19,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:18:19,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:19,837 INFO L87 Difference]: Start difference. First operand 1914 states and 2385 transitions. Second operand 3 states. [2020-12-22 01:18:21,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:21,029 INFO L93 Difference]: Finished difference Result 4565 states and 5845 transitions. [2020-12-22 01:18:21,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:18:21,030 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2020-12-22 01:18:21,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:21,045 INFO L225 Difference]: With dead ends: 4565 [2020-12-22 01:18:21,045 INFO L226 Difference]: Without dead ends: 2652 [2020-12-22 01:18:21,049 INFO L677 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 [2020-12-22 01:18:21,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2652 states. [2020-12-22 01:18:21,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2652 to 2652. [2020-12-22 01:18:21,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2652 states. [2020-12-22 01:18:21,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2652 states to 2652 states and 3378 transitions. [2020-12-22 01:18:21,118 INFO L78 Accepts]: Start accepts. Automaton has 2652 states and 3378 transitions. Word has length 203 [2020-12-22 01:18:21,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:21,119 INFO L481 AbstractCegarLoop]: Abstraction has 2652 states and 3378 transitions. [2020-12-22 01:18:21,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:18:21,119 INFO L276 IsEmpty]: Start isEmpty. Operand 2652 states and 3378 transitions. [2020-12-22 01:18:21,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-12-22 01:18:21,123 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:21,124 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:21,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 01:18:21,124 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:21,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:21,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1025688727, now seen corresponding path program 1 times [2020-12-22 01:18:21,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:21,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244829054] [2020-12-22 01:18:21,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:21,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:21,402 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-12-22 01:18:21,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244829054] [2020-12-22 01:18:21,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:21,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:18:21,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497201854] [2020-12-22 01:18:21,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:18:21,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:21,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:18:21,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:21,405 INFO L87 Difference]: Start difference. First operand 2652 states and 3378 transitions. Second operand 3 states. [2020-12-22 01:18:22,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:22,582 INFO L93 Difference]: Finished difference Result 6046 states and 7834 transitions. [2020-12-22 01:18:22,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:18:22,584 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-12-22 01:18:22,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:22,603 INFO L225 Difference]: With dead ends: 6046 [2020-12-22 01:18:22,604 INFO L226 Difference]: Without dead ends: 3580 [2020-12-22 01:18:22,608 INFO L677 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 [2020-12-22 01:18:22,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3580 states. [2020-12-22 01:18:22,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3580 to 3571. [2020-12-22 01:18:22,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3571 states. [2020-12-22 01:18:22,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3571 states to 3571 states and 4442 transitions. [2020-12-22 01:18:22,695 INFO L78 Accepts]: Start accepts. Automaton has 3571 states and 4442 transitions. Word has length 214 [2020-12-22 01:18:22,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:22,696 INFO L481 AbstractCegarLoop]: Abstraction has 3571 states and 4442 transitions. [2020-12-22 01:18:22,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:18:22,696 INFO L276 IsEmpty]: Start isEmpty. Operand 3571 states and 4442 transitions. [2020-12-22 01:18:22,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-12-22 01:18:22,701 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:22,701 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:22,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 01:18:22,701 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:22,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:22,707 INFO L82 PathProgramCache]: Analyzing trace with hash 307563977, now seen corresponding path program 1 times [2020-12-22 01:18:22,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:22,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498007610] [2020-12-22 01:18:22,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:22,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:22,896 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-12-22 01:18:22,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498007610] [2020-12-22 01:18:22,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:22,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:18:22,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619961301] [2020-12-22 01:18:22,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:18:22,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:22,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:18:22,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:22,900 INFO L87 Difference]: Start difference. First operand 3571 states and 4442 transitions. Second operand 3 states. [2020-12-22 01:18:24,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:24,088 INFO L93 Difference]: Finished difference Result 9167 states and 11617 transitions. [2020-12-22 01:18:24,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:18:24,088 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2020-12-22 01:18:24,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:24,116 INFO L225 Difference]: With dead ends: 9167 [2020-12-22 01:18:24,116 INFO L226 Difference]: Without dead ends: 5781 [2020-12-22 01:18:24,123 INFO L677 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 [2020-12-22 01:18:24,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5781 states. [2020-12-22 01:18:24,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5781 to 5778. [2020-12-22 01:18:24,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5778 states. [2020-12-22 01:18:24,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5778 states to 5778 states and 7128 transitions. [2020-12-22 01:18:24,242 INFO L78 Accepts]: Start accepts. Automaton has 5778 states and 7128 transitions. Word has length 234 [2020-12-22 01:18:24,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:24,243 INFO L481 AbstractCegarLoop]: Abstraction has 5778 states and 7128 transitions. [2020-12-22 01:18:24,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:18:24,243 INFO L276 IsEmpty]: Start isEmpty. Operand 5778 states and 7128 transitions. [2020-12-22 01:18:24,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-12-22 01:18:24,252 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:24,252 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:24,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 01:18:24,253 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:24,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:24,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1325455450, now seen corresponding path program 1 times [2020-12-22 01:18:24,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:24,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393932557] [2020-12-22 01:18:24,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:24,539 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-12-22 01:18:24,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393932557] [2020-12-22 01:18:24,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:24,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:18:24,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355196828] [2020-12-22 01:18:24,540 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:18:24,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:24,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:18:24,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:24,542 INFO L87 Difference]: Start difference. First operand 5778 states and 7128 transitions. Second operand 3 states. [2020-12-22 01:18:25,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:25,748 INFO L93 Difference]: Finished difference Result 12670 states and 15866 transitions. [2020-12-22 01:18:25,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:18:25,749 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 295 [2020-12-22 01:18:25,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:25,793 INFO L225 Difference]: With dead ends: 12670 [2020-12-22 01:18:25,794 INFO L226 Difference]: Without dead ends: 7078 [2020-12-22 01:18:25,804 INFO L677 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 [2020-12-22 01:18:25,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7078 states. [2020-12-22 01:18:25,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7078 to 6882. [2020-12-22 01:18:25,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6882 states. [2020-12-22 01:18:25,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6882 states to 6882 states and 8372 transitions. [2020-12-22 01:18:25,998 INFO L78 Accepts]: Start accepts. Automaton has 6882 states and 8372 transitions. Word has length 295 [2020-12-22 01:18:25,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:25,999 INFO L481 AbstractCegarLoop]: Abstraction has 6882 states and 8372 transitions. [2020-12-22 01:18:25,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:18:25,999 INFO L276 IsEmpty]: Start isEmpty. Operand 6882 states and 8372 transitions. [2020-12-22 01:18:26,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2020-12-22 01:18:26,014 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:26,015 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:26,015 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 01:18:26,015 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:26,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:26,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1545495602, now seen corresponding path program 1 times [2020-12-22 01:18:26,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:26,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508872079] [2020-12-22 01:18:26,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:26,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:26,467 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 257 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-12-22 01:18:26,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508872079] [2020-12-22 01:18:26,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:26,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:18:26,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815225978] [2020-12-22 01:18:26,474 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:18:26,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:26,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:18:26,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:26,478 INFO L87 Difference]: Start difference. First operand 6882 states and 8372 transitions. Second operand 3 states. [2020-12-22 01:18:27,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:27,602 INFO L93 Difference]: Finished difference Result 15065 states and 18353 transitions. [2020-12-22 01:18:27,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:18:27,603 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 356 [2020-12-22 01:18:27,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:27,637 INFO L225 Difference]: With dead ends: 15065 [2020-12-22 01:18:27,637 INFO L226 Difference]: Without dead ends: 8185 [2020-12-22 01:18:27,648 INFO L677 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 [2020-12-22 01:18:27,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8185 states. [2020-12-22 01:18:27,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8185 to 7802. [2020-12-22 01:18:27,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7802 states. [2020-12-22 01:18:27,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7802 states to 7802 states and 9440 transitions. [2020-12-22 01:18:27,848 INFO L78 Accepts]: Start accepts. Automaton has 7802 states and 9440 transitions. Word has length 356 [2020-12-22 01:18:27,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:27,849 INFO L481 AbstractCegarLoop]: Abstraction has 7802 states and 9440 transitions. [2020-12-22 01:18:27,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:18:27,849 INFO L276 IsEmpty]: Start isEmpty. Operand 7802 states and 9440 transitions. [2020-12-22 01:18:27,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2020-12-22 01:18:27,869 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:27,869 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 01:18:27,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 01:18:27,870 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:27,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:27,871 INFO L82 PathProgramCache]: Analyzing trace with hash 2125057870, now seen corresponding path program 1 times [2020-12-22 01:18:27,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:27,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771520653] [2020-12-22 01:18:27,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:27,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:28,305 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-12-22 01:18:28,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771520653] [2020-12-22 01:18:28,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:28,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:18:28,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623381206] [2020-12-22 01:18:28,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:18:28,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:28,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:18:28,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:28,308 INFO L87 Difference]: Start difference. First operand 7802 states and 9440 transitions. Second operand 3 states. [2020-12-22 01:18:29,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:29,459 INFO L93 Difference]: Finished difference Result 17809 states and 21606 transitions. [2020-12-22 01:18:29,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:18:29,460 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 379 [2020-12-22 01:18:29,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:29,485 INFO L225 Difference]: With dead ends: 17809 [2020-12-22 01:18:29,486 INFO L226 Difference]: Without dead ends: 10009 [2020-12-22 01:18:29,499 INFO L677 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 [2020-12-22 01:18:29,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10009 states. [2020-12-22 01:18:29,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10009 to 10009. [2020-12-22 01:18:29,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10009 states. [2020-12-22 01:18:29,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10009 states to 10009 states and 12029 transitions. [2020-12-22 01:18:29,753 INFO L78 Accepts]: Start accepts. Automaton has 10009 states and 12029 transitions. Word has length 379 [2020-12-22 01:18:29,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:29,754 INFO L481 AbstractCegarLoop]: Abstraction has 10009 states and 12029 transitions. [2020-12-22 01:18:29,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:18:29,755 INFO L276 IsEmpty]: Start isEmpty. Operand 10009 states and 12029 transitions. [2020-12-22 01:18:29,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2020-12-22 01:18:29,782 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:29,782 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:29,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 01:18:29,783 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:29,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:29,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1249107897, now seen corresponding path program 1 times [2020-12-22 01:18:29,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:29,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035746328] [2020-12-22 01:18:29,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:30,224 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 337 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2020-12-22 01:18:30,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035746328] [2020-12-22 01:18:30,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:30,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:18:30,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403021031] [2020-12-22 01:18:30,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:18:30,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:30,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:18:30,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:30,226 INFO L87 Difference]: Start difference. First operand 10009 states and 12029 transitions. Second operand 3 states. [2020-12-22 01:18:31,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:31,225 INFO L93 Difference]: Finished difference Result 18152 states and 21809 transitions. [2020-12-22 01:18:31,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:18:31,226 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 417 [2020-12-22 01:18:31,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:31,242 INFO L225 Difference]: With dead ends: 18152 [2020-12-22 01:18:31,242 INFO L226 Difference]: Without dead ends: 7593 [2020-12-22 01:18:31,255 INFO L677 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 [2020-12-22 01:18:31,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7593 states. [2020-12-22 01:18:31,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7593 to 7039. [2020-12-22 01:18:31,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7039 states. [2020-12-22 01:18:31,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7039 states to 7039 states and 8053 transitions. [2020-12-22 01:18:31,371 INFO L78 Accepts]: Start accepts. Automaton has 7039 states and 8053 transitions. Word has length 417 [2020-12-22 01:18:31,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:31,372 INFO L481 AbstractCegarLoop]: Abstraction has 7039 states and 8053 transitions. [2020-12-22 01:18:31,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:18:31,372 INFO L276 IsEmpty]: Start isEmpty. Operand 7039 states and 8053 transitions. [2020-12-22 01:18:31,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2020-12-22 01:18:31,394 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:31,394 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:31,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 01:18:31,395 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:31,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:31,396 INFO L82 PathProgramCache]: Analyzing trace with hash 127474750, now seen corresponding path program 1 times [2020-12-22 01:18:31,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:31,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710981492] [2020-12-22 01:18:31,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:31,763 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 504 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2020-12-22 01:18:31,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710981492] [2020-12-22 01:18:31,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:31,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:18:31,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043778143] [2020-12-22 01:18:31,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:18:31,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:31,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:18:31,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:31,766 INFO L87 Difference]: Start difference. First operand 7039 states and 8053 transitions. Second operand 3 states. [2020-12-22 01:18:32,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:32,928 INFO L93 Difference]: Finished difference Result 17219 states and 19661 transitions. [2020-12-22 01:18:32,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:18:32,929 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 481 [2020-12-22 01:18:32,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:32,948 INFO L225 Difference]: With dead ends: 17219 [2020-12-22 01:18:32,948 INFO L226 Difference]: Without dead ends: 10182 [2020-12-22 01:18:32,955 INFO L677 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 [2020-12-22 01:18:32,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10182 states. [2020-12-22 01:18:33,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10182 to 9996. [2020-12-22 01:18:33,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9996 states. [2020-12-22 01:18:33,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9996 states to 9996 states and 11222 transitions. [2020-12-22 01:18:33,111 INFO L78 Accepts]: Start accepts. Automaton has 9996 states and 11222 transitions. Word has length 481 [2020-12-22 01:18:33,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:33,112 INFO L481 AbstractCegarLoop]: Abstraction has 9996 states and 11222 transitions. [2020-12-22 01:18:33,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:18:33,112 INFO L276 IsEmpty]: Start isEmpty. Operand 9996 states and 11222 transitions. [2020-12-22 01:18:33,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2020-12-22 01:18:33,140 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:33,140 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:33,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 01:18:33,140 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:33,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:33,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1327732137, now seen corresponding path program 1 times [2020-12-22 01:18:33,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:33,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346660733] [2020-12-22 01:18:33,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:33,888 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 156 proven. 406 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2020-12-22 01:18:33,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346660733] [2020-12-22 01:18:33,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650345387] [2020-12-22 01:18:33,889 INFO L95 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 [2020-12-22 01:18:34,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:34,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 01:18:34,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:18:34,357 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 01:18:35,005 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 593 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-12-22 01:18:35,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:18:35,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-12-22 01:18:35,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898514983] [2020-12-22 01:18:35,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:18:35,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:35,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:18:35,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-12-22 01:18:35,009 INFO L87 Difference]: Start difference. First operand 9996 states and 11222 transitions. Second operand 4 states. [2020-12-22 01:18:36,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:36,825 INFO L93 Difference]: Finished difference Result 27750 states and 31124 transitions. [2020-12-22 01:18:36,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:18:36,826 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 491 [2020-12-22 01:18:36,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:36,860 INFO L225 Difference]: With dead ends: 27750 [2020-12-22 01:18:36,861 INFO L226 Difference]: Without dead ends: 17388 [2020-12-22 01:18:36,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 489 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-12-22 01:18:36,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17388 states. [2020-12-22 01:18:37,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17388 to 16466. [2020-12-22 01:18:37,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16466 states. [2020-12-22 01:18:37,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16466 states to 16466 states and 18405 transitions. [2020-12-22 01:18:37,209 INFO L78 Accepts]: Start accepts. Automaton has 16466 states and 18405 transitions. Word has length 491 [2020-12-22 01:18:37,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:37,209 INFO L481 AbstractCegarLoop]: Abstraction has 16466 states and 18405 transitions. [2020-12-22 01:18:37,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:18:37,210 INFO L276 IsEmpty]: Start isEmpty. Operand 16466 states and 18405 transitions. [2020-12-22 01:18:37,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2020-12-22 01:18:37,243 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:37,243 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:37,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-22 01:18:37,460 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:37,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:37,460 INFO L82 PathProgramCache]: Analyzing trace with hash -2045557513, now seen corresponding path program 1 times [2020-12-22 01:18:37,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:37,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345051582] [2020-12-22 01:18:37,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:38,084 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 641 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2020-12-22 01:18:38,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345051582] [2020-12-22 01:18:38,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:38,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:18:38,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186526068] [2020-12-22 01:18:38,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:18:38,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:38,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:18:38,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:38,088 INFO L87 Difference]: Start difference. First operand 16466 states and 18405 transitions. Second operand 3 states. [2020-12-22 01:18:39,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:39,227 INFO L93 Difference]: Finished difference Result 35327 states and 39529 transitions. [2020-12-22 01:18:39,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:18:39,228 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 533 [2020-12-22 01:18:39,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:39,272 INFO L225 Difference]: With dead ends: 35327 [2020-12-22 01:18:39,273 INFO L226 Difference]: Without dead ends: 19967 [2020-12-22 01:18:39,287 INFO L677 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 [2020-12-22 01:18:39,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19967 states. [2020-12-22 01:18:39,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19967 to 16992. [2020-12-22 01:18:39,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16992 states. [2020-12-22 01:18:39,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16992 states to 16992 states and 18937 transitions. [2020-12-22 01:18:39,544 INFO L78 Accepts]: Start accepts. Automaton has 16992 states and 18937 transitions. Word has length 533 [2020-12-22 01:18:39,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:39,544 INFO L481 AbstractCegarLoop]: Abstraction has 16992 states and 18937 transitions. [2020-12-22 01:18:39,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:18:39,545 INFO L276 IsEmpty]: Start isEmpty. Operand 16992 states and 18937 transitions. [2020-12-22 01:18:39,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 588 [2020-12-22 01:18:39,575 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:39,576 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:39,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 01:18:39,576 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:39,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:39,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1514815029, now seen corresponding path program 1 times [2020-12-22 01:18:39,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:39,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585590456] [2020-12-22 01:18:39,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:40,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1091 backedges. 817 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2020-12-22 01:18:40,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585590456] [2020-12-22 01:18:40,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:40,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:18:40,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616797843] [2020-12-22 01:18:40,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:18:40,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:40,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:18:40,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:40,402 INFO L87 Difference]: Start difference. First operand 16992 states and 18937 transitions. Second operand 3 states. [2020-12-22 01:18:41,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:41,527 INFO L93 Difference]: Finished difference Result 33624 states and 37465 transitions. [2020-12-22 01:18:41,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:18:41,528 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 587 [2020-12-22 01:18:41,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:41,567 INFO L225 Difference]: With dead ends: 33624 [2020-12-22 01:18:41,567 INFO L226 Difference]: Without dead ends: 19030 [2020-12-22 01:18:41,583 INFO L677 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 [2020-12-22 01:18:41,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19030 states. [2020-12-22 01:18:41,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19030 to 16808. [2020-12-22 01:18:41,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16808 states. [2020-12-22 01:18:41,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16808 states to 16808 states and 18736 transitions. [2020-12-22 01:18:41,921 INFO L78 Accepts]: Start accepts. Automaton has 16808 states and 18736 transitions. Word has length 587 [2020-12-22 01:18:41,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:41,921 INFO L481 AbstractCegarLoop]: Abstraction has 16808 states and 18736 transitions. [2020-12-22 01:18:41,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:18:41,922 INFO L276 IsEmpty]: Start isEmpty. Operand 16808 states and 18736 transitions. [2020-12-22 01:18:41,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 601 [2020-12-22 01:18:41,965 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:41,966 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:41,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 01:18:41,966 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:41,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:41,967 INFO L82 PathProgramCache]: Analyzing trace with hash -395284017, now seen corresponding path program 1 times [2020-12-22 01:18:41,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:41,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753982901] [2020-12-22 01:18:41,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:42,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:42,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1111 backedges. 839 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2020-12-22 01:18:42,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753982901] [2020-12-22 01:18:42,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:42,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:18:42,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939536936] [2020-12-22 01:18:42,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:18:42,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:42,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:18:42,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:42,474 INFO L87 Difference]: Start difference. First operand 16808 states and 18736 transitions. Second operand 3 states. [2020-12-22 01:18:43,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:43,656 INFO L93 Difference]: Finished difference Result 34902 states and 38973 transitions. [2020-12-22 01:18:43,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:18:43,656 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 600 [2020-12-22 01:18:43,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:43,696 INFO L225 Difference]: With dead ends: 34902 [2020-12-22 01:18:43,696 INFO L226 Difference]: Without dead ends: 19200 [2020-12-22 01:18:43,710 INFO L677 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 [2020-12-22 01:18:43,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19200 states. [2020-12-22 01:18:43,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19200 to 18280. [2020-12-22 01:18:43,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18280 states. [2020-12-22 01:18:43,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18280 states to 18280 states and 20278 transitions. [2020-12-22 01:18:43,984 INFO L78 Accepts]: Start accepts. Automaton has 18280 states and 20278 transitions. Word has length 600 [2020-12-22 01:18:43,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:43,985 INFO L481 AbstractCegarLoop]: Abstraction has 18280 states and 20278 transitions. [2020-12-22 01:18:43,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:18:43,985 INFO L276 IsEmpty]: Start isEmpty. Operand 18280 states and 20278 transitions. [2020-12-22 01:18:44,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2020-12-22 01:18:44,011 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:44,013 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:44,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 01:18:44,013 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:44,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:44,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1555234423, now seen corresponding path program 1 times [2020-12-22 01:18:44,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:44,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818571974] [2020-12-22 01:18:44,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:44,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1120 backedges. 720 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2020-12-22 01:18:44,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818571974] [2020-12-22 01:18:44,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:44,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 01:18:44,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50483598] [2020-12-22 01:18:44,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:18:44,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:44,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:18:44,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:18:44,929 INFO L87 Difference]: Start difference. First operand 18280 states and 20278 transitions. Second operand 4 states. [2020-12-22 01:18:46,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:46,891 INFO L93 Difference]: Finished difference Result 42090 states and 46871 transitions. [2020-12-22 01:18:46,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:18:46,892 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 605 [2020-12-22 01:18:46,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:46,915 INFO L225 Difference]: With dead ends: 42090 [2020-12-22 01:18:46,915 INFO L226 Difference]: Without dead ends: 24180 [2020-12-22 01:18:46,929 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:18:46,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24180 states. [2020-12-22 01:18:47,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24180 to 20676. [2020-12-22 01:18:47,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20676 states. [2020-12-22 01:18:47,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20676 states to 20676 states and 22943 transitions. [2020-12-22 01:18:47,391 INFO L78 Accepts]: Start accepts. Automaton has 20676 states and 22943 transitions. Word has length 605 [2020-12-22 01:18:47,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:47,393 INFO L481 AbstractCegarLoop]: Abstraction has 20676 states and 22943 transitions. [2020-12-22 01:18:47,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:18:47,393 INFO L276 IsEmpty]: Start isEmpty. Operand 20676 states and 22943 transitions. [2020-12-22 01:18:47,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2020-12-22 01:18:47,425 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:47,426 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:47,426 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 01:18:47,427 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:47,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:47,427 INFO L82 PathProgramCache]: Analyzing trace with hash 752097309, now seen corresponding path program 1 times [2020-12-22 01:18:47,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:47,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426894434] [2020-12-22 01:18:47,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:48,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1336 backedges. 979 proven. 64 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2020-12-22 01:18:48,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426894434] [2020-12-22 01:18:48,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313824708] [2020-12-22 01:18:48,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-12-22 01:18:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:49,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 875 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 01:18:49,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:18:49,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1336 backedges. 1043 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2020-12-22 01:18:49,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:18:49,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-12-22 01:18:49,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117339239] [2020-12-22 01:18:49,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:18:49,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:49,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:18:49,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 01:18:49,671 INFO L87 Difference]: Start difference. First operand 20676 states and 22943 transitions. Second operand 3 states. [2020-12-22 01:18:50,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:50,852 INFO L93 Difference]: Finished difference Result 39521 states and 43854 transitions. [2020-12-22 01:18:50,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:18:50,853 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 667 [2020-12-22 01:18:50,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:50,878 INFO L225 Difference]: With dead ends: 39521 [2020-12-22 01:18:50,878 INFO L226 Difference]: Without dead ends: 21059 [2020-12-22 01:18:50,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 670 GetRequests, 666 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 01:18:50,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21059 states. [2020-12-22 01:18:51,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21059 to 19756. [2020-12-22 01:18:51,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19756 states. [2020-12-22 01:18:51,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19756 states to 19756 states and 21837 transitions. [2020-12-22 01:18:51,165 INFO L78 Accepts]: Start accepts. Automaton has 19756 states and 21837 transitions. Word has length 667 [2020-12-22 01:18:51,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:51,166 INFO L481 AbstractCegarLoop]: Abstraction has 19756 states and 21837 transitions. [2020-12-22 01:18:51,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:18:51,166 INFO L276 IsEmpty]: Start isEmpty. Operand 19756 states and 21837 transitions. [2020-12-22 01:18:51,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 722 [2020-12-22 01:18:51,191 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:51,192 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:51,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-12-22 01:18:51,406 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:51,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:51,407 INFO L82 PathProgramCache]: Analyzing trace with hash 2073093267, now seen corresponding path program 1 times [2020-12-22 01:18:51,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:51,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457676030] [2020-12-22 01:18:51,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:51,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:52,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1368 backedges. 1057 proven. 0 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2020-12-22 01:18:52,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457676030] [2020-12-22 01:18:52,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:52,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:18:52,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868563489] [2020-12-22 01:18:52,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:18:52,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:52,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:18:52,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:52,050 INFO L87 Difference]: Start difference. First operand 19756 states and 21837 transitions. Second operand 3 states. [2020-12-22 01:18:53,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:53,282 INFO L93 Difference]: Finished difference Result 41353 states and 45815 transitions. [2020-12-22 01:18:53,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:18:53,283 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 721 [2020-12-22 01:18:53,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:53,311 INFO L225 Difference]: With dead ends: 41353 [2020-12-22 01:18:53,311 INFO L226 Difference]: Without dead ends: 22335 [2020-12-22 01:18:53,328 INFO L677 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 [2020-12-22 01:18:53,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22335 states. [2020-12-22 01:18:53,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22335 to 19940. [2020-12-22 01:18:53,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19940 states. [2020-12-22 01:18:53,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19940 states to 19940 states and 22044 transitions. [2020-12-22 01:18:53,601 INFO L78 Accepts]: Start accepts. Automaton has 19940 states and 22044 transitions. Word has length 721 [2020-12-22 01:18:53,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:53,601 INFO L481 AbstractCegarLoop]: Abstraction has 19940 states and 22044 transitions. [2020-12-22 01:18:53,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:18:53,602 INFO L276 IsEmpty]: Start isEmpty. Operand 19940 states and 22044 transitions. [2020-12-22 01:18:53,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 813 [2020-12-22 01:18:53,625 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:53,626 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:53,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 01:18:53,627 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:53,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:53,627 INFO L82 PathProgramCache]: Analyzing trace with hash -2126317674, now seen corresponding path program 1 times [2020-12-22 01:18:53,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:53,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21678101] [2020-12-22 01:18:53,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:53,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:54,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 1061 proven. 0 refuted. 0 times theorem prover too weak. 875 trivial. 0 not checked. [2020-12-22 01:18:54,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21678101] [2020-12-22 01:18:54,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:54,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 01:18:54,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071102350] [2020-12-22 01:18:54,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:18:54,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:54,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:18:54,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:18:54,815 INFO L87 Difference]: Start difference. First operand 19940 states and 22044 transitions. Second operand 3 states. [2020-12-22 01:18:55,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:55,469 INFO L93 Difference]: Finished difference Result 37481 states and 41486 transitions. [2020-12-22 01:18:55,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:18:55,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 812 [2020-12-22 01:18:55,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:55,492 INFO L225 Difference]: With dead ends: 37481 [2020-12-22 01:18:55,492 INFO L226 Difference]: Without dead ends: 19751 [2020-12-22 01:18:55,504 INFO L677 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 [2020-12-22 01:18:55,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19751 states. [2020-12-22 01:18:55,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19751 to 19748. [2020-12-22 01:18:55,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19748 states. [2020-12-22 01:18:55,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19748 states to 19748 states and 21824 transitions. [2020-12-22 01:18:55,696 INFO L78 Accepts]: Start accepts. Automaton has 19748 states and 21824 transitions. Word has length 812 [2020-12-22 01:18:55,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:55,696 INFO L481 AbstractCegarLoop]: Abstraction has 19748 states and 21824 transitions. [2020-12-22 01:18:55,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:18:55,697 INFO L276 IsEmpty]: Start isEmpty. Operand 19748 states and 21824 transitions. [2020-12-22 01:18:55,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 956 [2020-12-22 01:18:55,722 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:55,723 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:55,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 01:18:55,723 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:55,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:55,723 INFO L82 PathProgramCache]: Analyzing trace with hash -9501416, now seen corresponding path program 1 times [2020-12-22 01:18:55,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:55,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960581503] [2020-12-22 01:18:55,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:55,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:18:56,709 INFO L134 CoverageAnalysis]: Checked inductivity of 3075 backedges. 2234 proven. 0 refuted. 0 times theorem prover too weak. 841 trivial. 0 not checked. [2020-12-22 01:18:56,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960581503] [2020-12-22 01:18:56,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:18:56,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 01:18:56,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476785381] [2020-12-22 01:18:56,710 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:18:56,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:18:56,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:18:56,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:18:56,715 INFO L87 Difference]: Start difference. First operand 19748 states and 21824 transitions. Second operand 4 states. [2020-12-22 01:18:58,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:18:58,754 INFO L93 Difference]: Finished difference Result 44666 states and 49404 transitions. [2020-12-22 01:18:58,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:18:58,754 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 955 [2020-12-22 01:18:58,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:18:58,782 INFO L225 Difference]: With dead ends: 44666 [2020-12-22 01:18:58,783 INFO L226 Difference]: Without dead ends: 26946 [2020-12-22 01:18:58,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:18:58,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26946 states. [2020-12-22 01:18:59,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26946 to 20497. [2020-12-22 01:18:59,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20497 states. [2020-12-22 01:18:59,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20497 states to 20497 states and 22594 transitions. [2020-12-22 01:18:59,114 INFO L78 Accepts]: Start accepts. Automaton has 20497 states and 22594 transitions. Word has length 955 [2020-12-22 01:18:59,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:18:59,115 INFO L481 AbstractCegarLoop]: Abstraction has 20497 states and 22594 transitions. [2020-12-22 01:18:59,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:18:59,116 INFO L276 IsEmpty]: Start isEmpty. Operand 20497 states and 22594 transitions. [2020-12-22 01:18:59,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 993 [2020-12-22 01:18:59,157 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:18:59,158 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:18:59,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 01:18:59,158 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:18:59,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:18:59,159 INFO L82 PathProgramCache]: Analyzing trace with hash -86524809, now seen corresponding path program 1 times [2020-12-22 01:18:59,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:18:59,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480930933] [2020-12-22 01:18:59,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:18:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:01,157 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 1460 proven. 0 refuted. 0 times theorem prover too weak. 1660 trivial. 0 not checked. [2020-12-22 01:19:01,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480930933] [2020-12-22 01:19:01,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:19:01,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 01:19:01,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207416354] [2020-12-22 01:19:01,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 01:19:01,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:19:01,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 01:19:01,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 01:19:01,160 INFO L87 Difference]: Start difference. First operand 20497 states and 22594 transitions. Second operand 6 states. [2020-12-22 01:19:03,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:19:03,345 INFO L93 Difference]: Finished difference Result 43552 states and 47976 transitions. [2020-12-22 01:19:03,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 01:19:03,347 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 992 [2020-12-22 01:19:03,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:19:03,371 INFO L225 Difference]: With dead ends: 43552 [2020-12-22 01:19:03,371 INFO L226 Difference]: Without dead ends: 23609 [2020-12-22 01:19:03,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-12-22 01:19:03,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23609 states. [2020-12-22 01:19:03,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23609 to 20681. [2020-12-22 01:19:03,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20681 states. [2020-12-22 01:19:03,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20681 states to 20681 states and 22784 transitions. [2020-12-22 01:19:03,723 INFO L78 Accepts]: Start accepts. Automaton has 20681 states and 22784 transitions. Word has length 992 [2020-12-22 01:19:03,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:19:03,723 INFO L481 AbstractCegarLoop]: Abstraction has 20681 states and 22784 transitions. [2020-12-22 01:19:03,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 01:19:03,723 INFO L276 IsEmpty]: Start isEmpty. Operand 20681 states and 22784 transitions. [2020-12-22 01:19:03,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1003 [2020-12-22 01:19:03,745 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:19:03,746 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:19:03,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-22 01:19:03,746 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:19:03,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:19:03,747 INFO L82 PathProgramCache]: Analyzing trace with hash -2037905602, now seen corresponding path program 1 times [2020-12-22 01:19:03,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:19:03,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524171186] [2020-12-22 01:19:03,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:19:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:05,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3167 backedges. 1499 proven. 8 refuted. 0 times theorem prover too weak. 1660 trivial. 0 not checked. [2020-12-22 01:19:05,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524171186] [2020-12-22 01:19:05,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001236094] [2020-12-22 01:19:05,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:19:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:06,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 1291 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-22 01:19:06,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:19:08,381 INFO L134 CoverageAnalysis]: Checked inductivity of 3167 backedges. 1386 proven. 121 refuted. 0 times theorem prover too weak. 1660 trivial. 0 not checked. [2020-12-22 01:19:08,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 01:19:08,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2020-12-22 01:19:08,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319424009] [2020-12-22 01:19:08,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 01:19:08,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:19:08,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 01:19:08,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-12-22 01:19:08,385 INFO L87 Difference]: Start difference. First operand 20681 states and 22784 transitions. Second operand 9 states. [2020-12-22 01:19:13,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:19:13,710 INFO L93 Difference]: Finished difference Result 42228 states and 46519 transitions. [2020-12-22 01:19:13,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-22 01:19:13,711 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1002 [2020-12-22 01:19:13,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:19:13,738 INFO L225 Difference]: With dead ends: 42228 [2020-12-22 01:19:13,738 INFO L226 Difference]: Without dead ends: 22101 [2020-12-22 01:19:13,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1022 GetRequests, 1000 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2020-12-22 01:19:13,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22101 states. [2020-12-22 01:19:13,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22101 to 20681. [2020-12-22 01:19:13,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20681 states. [2020-12-22 01:19:13,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20681 states to 20681 states and 22776 transitions. [2020-12-22 01:19:13,981 INFO L78 Accepts]: Start accepts. Automaton has 20681 states and 22776 transitions. Word has length 1002 [2020-12-22 01:19:13,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:19:13,981 INFO L481 AbstractCegarLoop]: Abstraction has 20681 states and 22776 transitions. [2020-12-22 01:19:13,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 01:19:13,982 INFO L276 IsEmpty]: Start isEmpty. Operand 20681 states and 22776 transitions. [2020-12-22 01:19:14,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1024 [2020-12-22 01:19:14,006 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:19:14,007 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:19:14,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2020-12-22 01:19:14,216 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:19:14,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:19:14,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1662304432, now seen corresponding path program 1 times [2020-12-22 01:19:14,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:19:14,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118915679] [2020-12-22 01:19:14,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:19:14,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:15,574 INFO L134 CoverageAnalysis]: Checked inductivity of 3217 backedges. 1557 proven. 0 refuted. 0 times theorem prover too weak. 1660 trivial. 0 not checked. [2020-12-22 01:19:15,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118915679] [2020-12-22 01:19:15,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:19:15,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:19:15,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108284734] [2020-12-22 01:19:15,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:19:15,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:19:15,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:19:15,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:19:15,576 INFO L87 Difference]: Start difference. First operand 20681 states and 22776 transitions. Second operand 4 states. [2020-12-22 01:19:17,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:19:17,337 INFO L93 Difference]: Finished difference Result 41549 states and 45767 transitions. [2020-12-22 01:19:17,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:19:17,337 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1023 [2020-12-22 01:19:17,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:19:17,354 INFO L225 Difference]: With dead ends: 41549 [2020-12-22 01:19:17,354 INFO L226 Difference]: Without dead ends: 21422 [2020-12-22 01:19:17,361 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:19:17,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21422 states. [2020-12-22 01:19:17,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21422 to 20129. [2020-12-22 01:19:17,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20129 states. [2020-12-22 01:19:17,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20129 states to 20129 states and 22163 transitions. [2020-12-22 01:19:17,560 INFO L78 Accepts]: Start accepts. Automaton has 20129 states and 22163 transitions. Word has length 1023 [2020-12-22 01:19:17,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:19:17,561 INFO L481 AbstractCegarLoop]: Abstraction has 20129 states and 22163 transitions. [2020-12-22 01:19:17,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:19:17,561 INFO L276 IsEmpty]: Start isEmpty. Operand 20129 states and 22163 transitions. [2020-12-22 01:19:17,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1073 [2020-12-22 01:19:17,584 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:19:17,585 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:19:17,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-22 01:19:17,585 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:19:17,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:19:17,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1653793906, now seen corresponding path program 1 times [2020-12-22 01:19:17,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:19:17,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884268271] [2020-12-22 01:19:17,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:19:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:19,574 INFO L134 CoverageAnalysis]: Checked inductivity of 3778 backedges. 2002 proven. 151 refuted. 0 times theorem prover too weak. 1625 trivial. 0 not checked. [2020-12-22 01:19:19,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884268271] [2020-12-22 01:19:19,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418106577] [2020-12-22 01:19:19,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:19:19,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:19,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 1390 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-22 01:19:19,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:19:21,428 INFO L134 CoverageAnalysis]: Checked inductivity of 3778 backedges. 2039 proven. 0 refuted. 0 times theorem prover too weak. 1739 trivial. 0 not checked. [2020-12-22 01:19:21,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:19:21,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2020-12-22 01:19:21,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529951699] [2020-12-22 01:19:21,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:19:21,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:19:21,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:19:21,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-12-22 01:19:21,430 INFO L87 Difference]: Start difference. First operand 20129 states and 22163 transitions. Second operand 4 states. [2020-12-22 01:19:23,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:19:23,007 INFO L93 Difference]: Finished difference Result 40257 states and 44323 transitions. [2020-12-22 01:19:23,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:19:23,008 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1072 [2020-12-22 01:19:23,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:19:23,027 INFO L225 Difference]: With dead ends: 40257 [2020-12-22 01:19:23,027 INFO L226 Difference]: Without dead ends: 19760 [2020-12-22 01:19:23,038 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1078 GetRequests, 1071 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-12-22 01:19:23,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19760 states. [2020-12-22 01:19:23,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19760 to 17735. [2020-12-22 01:19:23,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17735 states. [2020-12-22 01:19:23,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17735 states to 17735 states and 19362 transitions. [2020-12-22 01:19:23,217 INFO L78 Accepts]: Start accepts. Automaton has 17735 states and 19362 transitions. Word has length 1072 [2020-12-22 01:19:23,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:19:23,217 INFO L481 AbstractCegarLoop]: Abstraction has 17735 states and 19362 transitions. [2020-12-22 01:19:23,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:19:23,217 INFO L276 IsEmpty]: Start isEmpty. Operand 17735 states and 19362 transitions. [2020-12-22 01:19:23,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1097 [2020-12-22 01:19:23,237 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:19:23,237 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:19:23,438 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:19:23,438 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:19:23,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:19:23,440 INFO L82 PathProgramCache]: Analyzing trace with hash 208624815, now seen corresponding path program 1 times [2020-12-22 01:19:23,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:19:23,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333221609] [2020-12-22 01:19:23,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:19:23,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:24,484 INFO L134 CoverageAnalysis]: Checked inductivity of 4071 backedges. 2485 proven. 0 refuted. 0 times theorem prover too weak. 1586 trivial. 0 not checked. [2020-12-22 01:19:24,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333221609] [2020-12-22 01:19:24,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:19:24,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:19:24,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204725917] [2020-12-22 01:19:24,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:19:24,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:19:24,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:19:24,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:19:24,486 INFO L87 Difference]: Start difference. First operand 17735 states and 19362 transitions. Second operand 3 states. [2020-12-22 01:19:25,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:19:25,654 INFO L93 Difference]: Finished difference Result 36204 states and 39530 transitions. [2020-12-22 01:19:25,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:19:25,655 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1096 [2020-12-22 01:19:25,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:19:25,673 INFO L225 Difference]: With dead ends: 36204 [2020-12-22 01:19:25,673 INFO L226 Difference]: Without dead ends: 19023 [2020-12-22 01:19:25,684 INFO L677 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 [2020-12-22 01:19:25,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19023 states. [2020-12-22 01:19:25,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19023 to 16990. [2020-12-22 01:19:25,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16990 states. [2020-12-22 01:19:25,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16990 states to 16990 states and 18536 transitions. [2020-12-22 01:19:25,881 INFO L78 Accepts]: Start accepts. Automaton has 16990 states and 18536 transitions. Word has length 1096 [2020-12-22 01:19:25,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:19:25,881 INFO L481 AbstractCegarLoop]: Abstraction has 16990 states and 18536 transitions. [2020-12-22 01:19:25,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:19:25,882 INFO L276 IsEmpty]: Start isEmpty. Operand 16990 states and 18536 transitions. [2020-12-22 01:19:25,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1100 [2020-12-22 01:19:25,908 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:19:25,909 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:19:25,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-22 01:19:25,909 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:19:25,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:19:25,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1879384201, now seen corresponding path program 1 times [2020-12-22 01:19:25,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:19:25,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388738105] [2020-12-22 01:19:25,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:19:26,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:27,218 INFO L134 CoverageAnalysis]: Checked inductivity of 3945 backedges. 2896 proven. 0 refuted. 0 times theorem prover too weak. 1049 trivial. 0 not checked. [2020-12-22 01:19:27,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388738105] [2020-12-22 01:19:27,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:19:27,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 01:19:27,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380301273] [2020-12-22 01:19:27,220 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:19:27,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:19:27,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:19:27,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:19:27,220 INFO L87 Difference]: Start difference. First operand 16990 states and 18536 transitions. Second operand 4 states. [2020-12-22 01:19:29,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:19:29,242 INFO L93 Difference]: Finished difference Result 38226 states and 41708 transitions. [2020-12-22 01:19:29,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:19:29,242 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1099 [2020-12-22 01:19:29,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:19:29,261 INFO L225 Difference]: With dead ends: 38226 [2020-12-22 01:19:29,261 INFO L226 Difference]: Without dead ends: 21054 [2020-12-22 01:19:29,270 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:19:29,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21054 states. [2020-12-22 01:19:29,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21054 to 15886. [2020-12-22 01:19:29,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15886 states. [2020-12-22 01:19:29,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15886 states to 15886 states and 17336 transitions. [2020-12-22 01:19:29,441 INFO L78 Accepts]: Start accepts. Automaton has 15886 states and 17336 transitions. Word has length 1099 [2020-12-22 01:19:29,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:19:29,441 INFO L481 AbstractCegarLoop]: Abstraction has 15886 states and 17336 transitions. [2020-12-22 01:19:29,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:19:29,441 INFO L276 IsEmpty]: Start isEmpty. Operand 15886 states and 17336 transitions. [2020-12-22 01:19:29,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1247 [2020-12-22 01:19:29,461 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:19:29,462 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:19:29,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-22 01:19:29,462 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:19:29,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:19:29,463 INFO L82 PathProgramCache]: Analyzing trace with hash 411536198, now seen corresponding path program 1 times [2020-12-22 01:19:29,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:19:29,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136344498] [2020-12-22 01:19:29,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:19:29,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:32,204 INFO L134 CoverageAnalysis]: Checked inductivity of 4962 backedges. 2695 proven. 969 refuted. 0 times theorem prover too weak. 1298 trivial. 0 not checked. [2020-12-22 01:19:32,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136344498] [2020-12-22 01:19:32,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717762260] [2020-12-22 01:19:32,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:19:32,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:32,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 1592 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 01:19:32,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:19:34,116 INFO L134 CoverageAnalysis]: Checked inductivity of 4962 backedges. 2478 proven. 0 refuted. 0 times theorem prover too weak. 2484 trivial. 0 not checked. [2020-12-22 01:19:34,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:19:34,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2020-12-22 01:19:34,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36720500] [2020-12-22 01:19:34,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:19:34,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:19:34,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:19:34,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-22 01:19:34,118 INFO L87 Difference]: Start difference. First operand 15886 states and 17336 transitions. Second operand 3 states. [2020-12-22 01:19:35,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:19:35,225 INFO L93 Difference]: Finished difference Result 32338 states and 35299 transitions. [2020-12-22 01:19:35,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:19:35,226 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1246 [2020-12-22 01:19:35,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:19:35,240 INFO L225 Difference]: With dead ends: 32338 [2020-12-22 01:19:35,240 INFO L226 Difference]: Without dead ends: 17006 [2020-12-22 01:19:35,248 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1253 GetRequests, 1247 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-22 01:19:35,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17006 states. [2020-12-22 01:19:35,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17006 to 16634. [2020-12-22 01:19:35,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16634 states. [2020-12-22 01:19:35,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16634 states to 16634 states and 18110 transitions. [2020-12-22 01:19:35,402 INFO L78 Accepts]: Start accepts. Automaton has 16634 states and 18110 transitions. Word has length 1246 [2020-12-22 01:19:35,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:19:35,403 INFO L481 AbstractCegarLoop]: Abstraction has 16634 states and 18110 transitions. [2020-12-22 01:19:35,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:19:35,403 INFO L276 IsEmpty]: Start isEmpty. Operand 16634 states and 18110 transitions. [2020-12-22 01:19:35,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1273 [2020-12-22 01:19:35,424 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:19:35,424 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:19:35,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-12-22 01:19:35,625 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:19:35,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:19:35,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1547227736, now seen corresponding path program 1 times [2020-12-22 01:19:35,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:19:35,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085918705] [2020-12-22 01:19:35,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:19:35,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:36,918 INFO L134 CoverageAnalysis]: Checked inductivity of 5831 backedges. 2751 proven. 0 refuted. 0 times theorem prover too weak. 3080 trivial. 0 not checked. [2020-12-22 01:19:36,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085918705] [2020-12-22 01:19:36,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:19:36,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:19:36,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846946475] [2020-12-22 01:19:36,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:19:36,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:19:36,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:19:36,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:19:36,920 INFO L87 Difference]: Start difference. First operand 16634 states and 18110 transitions. Second operand 3 states. [2020-12-22 01:19:38,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:19:38,129 INFO L93 Difference]: Finished difference Result 33640 states and 36697 transitions. [2020-12-22 01:19:38,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:19:38,130 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1272 [2020-12-22 01:19:38,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:19:38,147 INFO L225 Difference]: With dead ends: 33640 [2020-12-22 01:19:38,147 INFO L226 Difference]: Without dead ends: 17376 [2020-12-22 01:19:38,157 INFO L677 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 [2020-12-22 01:19:38,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17376 states. [2020-12-22 01:19:38,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17376 to 16633. [2020-12-22 01:19:38,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16633 states. [2020-12-22 01:19:38,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16633 states to 16633 states and 18105 transitions. [2020-12-22 01:19:38,328 INFO L78 Accepts]: Start accepts. Automaton has 16633 states and 18105 transitions. Word has length 1272 [2020-12-22 01:19:38,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:19:38,328 INFO L481 AbstractCegarLoop]: Abstraction has 16633 states and 18105 transitions. [2020-12-22 01:19:38,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:19:38,328 INFO L276 IsEmpty]: Start isEmpty. Operand 16633 states and 18105 transitions. [2020-12-22 01:19:38,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1287 [2020-12-22 01:19:38,349 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:19:38,350 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:19:38,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-22 01:19:38,350 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:19:38,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:19:38,351 INFO L82 PathProgramCache]: Analyzing trace with hash -491479756, now seen corresponding path program 1 times [2020-12-22 01:19:38,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:19:38,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743689889] [2020-12-22 01:19:38,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:19:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:19:39,647 INFO L134 CoverageAnalysis]: Checked inductivity of 5935 backedges. 3255 proven. 0 refuted. 0 times theorem prover too weak. 2680 trivial. 0 not checked. [2020-12-22 01:19:39,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743689889] [2020-12-22 01:19:39,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:19:39,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:19:39,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922058688] [2020-12-22 01:19:39,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:19:39,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:19:39,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:19:39,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:19:39,650 INFO L87 Difference]: Start difference. First operand 16633 states and 18105 transitions. Second operand 3 states. [2020-12-22 01:19:40,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:19:40,640 INFO L93 Difference]: Finished difference Result 26612 states and 28787 transitions. [2020-12-22 01:19:40,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:19:40,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1286 [2020-12-22 01:19:40,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:19:40,641 INFO L225 Difference]: With dead ends: 26612 [2020-12-22 01:19:40,641 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 01:19:40,650 INFO L677 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 [2020-12-22 01:19:40,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 01:19:40,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 01:19:40,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 01:19:40,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 01:19:40,651 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1286 [2020-12-22 01:19:40,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:19:40,651 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 01:19:40,651 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:19:40,651 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 01:19:40,651 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 01:19:40,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-22 01:19:40,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 01:19:42,996 WARN L197 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 1007 DAG size of output: 436 [2020-12-22 01:19:44,738 WARN L197 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 1007 DAG size of output: 436 [2020-12-22 01:19:48,312 WARN L197 SmtUtils]: Spent 3.57 s on a formula simplification. DAG size of input: 393 DAG size of output: 97 [2020-12-22 01:19:51,954 WARN L197 SmtUtils]: Spent 3.64 s on a formula simplification. DAG size of input: 393 DAG size of output: 97 [2020-12-22 01:19:51,959 INFO L189 CegarLoopUtils]: For program point L498(lines 498 509) no Hoare annotation was computed. [2020-12-22 01:19:51,960 INFO L189 CegarLoopUtils]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,960 INFO L189 CegarLoopUtils]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2020-12-22 01:19:51,960 INFO L189 CegarLoopUtils]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,960 INFO L189 CegarLoopUtils]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,960 INFO L189 CegarLoopUtils]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,960 INFO L189 CegarLoopUtils]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,961 INFO L189 CegarLoopUtils]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,961 INFO L189 CegarLoopUtils]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,961 INFO L189 CegarLoopUtils]: For program point L169(line 169) no Hoare annotation was computed. [2020-12-22 01:19:51,961 INFO L189 CegarLoopUtils]: For program point L103(line 103) no Hoare annotation was computed. [2020-12-22 01:19:51,961 INFO L189 CegarLoopUtils]: For program point L37(line 37) no Hoare annotation was computed. [2020-12-22 01:19:51,961 INFO L189 CegarLoopUtils]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,962 INFO L189 CegarLoopUtils]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,962 INFO L189 CegarLoopUtils]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,962 INFO L189 CegarLoopUtils]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,962 INFO L189 CegarLoopUtils]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,962 INFO L189 CegarLoopUtils]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,962 INFO L189 CegarLoopUtils]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,963 INFO L189 CegarLoopUtils]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,963 INFO L189 CegarLoopUtils]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,963 INFO L189 CegarLoopUtils]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,963 INFO L189 CegarLoopUtils]: For program point L172(line 172) no Hoare annotation was computed. [2020-12-22 01:19:51,963 INFO L189 CegarLoopUtils]: For program point L106(line 106) no Hoare annotation was computed. [2020-12-22 01:19:51,963 INFO L189 CegarLoopUtils]: For program point L40(line 40) no Hoare annotation was computed. [2020-12-22 01:19:51,964 INFO L189 CegarLoopUtils]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,964 INFO L189 CegarLoopUtils]: For program point L768(lines 768 778) no Hoare annotation was computed. [2020-12-22 01:19:51,964 INFO L189 CegarLoopUtils]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2020-12-22 01:19:51,964 INFO L189 CegarLoopUtils]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,964 INFO L189 CegarLoopUtils]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,964 INFO L189 CegarLoopUtils]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,964 INFO L189 CegarLoopUtils]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,964 INFO L189 CegarLoopUtils]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,964 INFO L189 CegarLoopUtils]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,964 INFO L189 CegarLoopUtils]: For program point L175(line 175) no Hoare annotation was computed. [2020-12-22 01:19:51,964 INFO L189 CegarLoopUtils]: For program point L109(line 109) no Hoare annotation was computed. [2020-12-22 01:19:51,964 INFO L189 CegarLoopUtils]: For program point L43(line 43) no Hoare annotation was computed. [2020-12-22 01:19:51,965 INFO L189 CegarLoopUtils]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,965 INFO L189 CegarLoopUtils]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,965 INFO L189 CegarLoopUtils]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,965 INFO L185 CegarLoopUtils]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse1 (< 140 ~a29~0)) (.cse13 (<= ~a23~0 138))) (let ((.cse12 (<= ~a29~0 274)) (.cse8 (<= 0 (+ ~a29~0 580294))) (.cse5 (= ~a4~0 0)) (.cse7 (<= (+ ~a23~0 43) 0)) (.cse9 (<= ~a29~0 275)) (.cse2 (<= ~a29~0 245)) (.cse0 (= ~a25~0 13)) (.cse6 (<= ~a25~0 9)) (.cse14 (<= ~a23~0 312)) (.cse11 (= ~a25~0 10)) (.cse16 (<= ~a23~0 599997)) (.cse18 (or (and .cse13 .cse1) (and (<= ~a25~0 10) .cse13))) (.cse10 (= ~a25~0 12)) (.cse15 (<= ~a23~0 600000)) (.cse3 (= ~a3~0 1)) (.cse17 (<= ~a29~0 130)) (.cse4 (= ~a4~0 1))) (or (and .cse0 .cse1 (= ~a8~0 15) .cse2 .cse3 .cse4) (and .cse5 (<= (+ ~a29~0 554036) 0) .cse6 .cse7 .cse8 .cse3) (and .cse9 .cse5 .cse1 .cse10 .cse3) (and .cse11 .cse1 .cse12 .cse3 .cse4) (and .cse13 .cse11 .cse4) (and .cse14 .cse10 .cse4 .cse3) (and .cse1 (<= ~a25~0 11) .cse15 .cse3 .cse4) (and .cse5 (<= ~a29~0 220) .cse8 .cse3 (<= (+ ~a23~0 55) 0)) (and .cse5 .cse0 .cse1 .cse12 .cse7 .cse3) (and .cse0 .cse16 .cse3 .cse4) (and .cse6 .cse14 .cse17 .cse4 .cse8) (and .cse5 .cse6 .cse1 .cse7 .cse3) (and .cse9 .cse6 .cse1 .cse3 .cse4) (and .cse18 .cse2 .cse3 .cse4) (and .cse0 .cse1 (<= ~a29~0 232) .cse3 .cse4) (and .cse6 .cse14 .cse3 .cse4) (and .cse11 .cse16 .cse3 .cse4) (and (<= 27009 ~a29~0) .cse18 .cse3 .cse4) (and .cse1 .cse10 .cse15 .cse3 .cse4) (and .cse13 .cse17 .cse4)))) [2020-12-22 01:19:51,965 INFO L189 CegarLoopUtils]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,965 INFO L189 CegarLoopUtils]: For program point L705(lines 705 715) no Hoare annotation was computed. [2020-12-22 01:19:51,966 INFO L189 CegarLoopUtils]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2020-12-22 01:19:51,966 INFO L189 CegarLoopUtils]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,966 INFO L189 CegarLoopUtils]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,966 INFO L189 CegarLoopUtils]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,966 INFO L189 CegarLoopUtils]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,966 INFO L189 CegarLoopUtils]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,966 INFO L189 CegarLoopUtils]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,966 INFO L189 CegarLoopUtils]: For program point L178(line 178) no Hoare annotation was computed. [2020-12-22 01:19:51,966 INFO L189 CegarLoopUtils]: For program point L112(line 112) no Hoare annotation was computed. [2020-12-22 01:19:51,966 INFO L189 CegarLoopUtils]: For program point L46(line 46) no Hoare annotation was computed. [2020-12-22 01:19:51,966 INFO L192 CegarLoopUtils]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2020-12-22 01:19:51,966 INFO L189 CegarLoopUtils]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,966 INFO L189 CegarLoopUtils]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,966 INFO L189 CegarLoopUtils]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,967 INFO L189 CegarLoopUtils]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,967 INFO L189 CegarLoopUtils]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,967 INFO L189 CegarLoopUtils]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,967 INFO L189 CegarLoopUtils]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,967 INFO L189 CegarLoopUtils]: For program point L181(line 181) no Hoare annotation was computed. [2020-12-22 01:19:51,967 INFO L189 CegarLoopUtils]: For program point L115(line 115) no Hoare annotation was computed. [2020-12-22 01:19:51,967 INFO L189 CegarLoopUtils]: For program point L49(line 49) no Hoare annotation was computed. [2020-12-22 01:19:51,967 INFO L189 CegarLoopUtils]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,967 INFO L189 CegarLoopUtils]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,967 INFO L189 CegarLoopUtils]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,967 INFO L189 CegarLoopUtils]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,967 INFO L189 CegarLoopUtils]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,967 INFO L189 CegarLoopUtils]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,967 INFO L189 CegarLoopUtils]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,967 INFO L189 CegarLoopUtils]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,967 INFO L189 CegarLoopUtils]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,967 INFO L189 CegarLoopUtils]: For program point L184(line 184) no Hoare annotation was computed. [2020-12-22 01:19:51,967 INFO L189 CegarLoopUtils]: For program point L118(line 118) no Hoare annotation was computed. [2020-12-22 01:19:51,968 INFO L189 CegarLoopUtils]: For program point L52(line 52) no Hoare annotation was computed. [2020-12-22 01:19:51,968 INFO L189 CegarLoopUtils]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,968 INFO L185 CegarLoopUtils]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse1 (< 140 ~a29~0)) (.cse13 (<= ~a23~0 138))) (let ((.cse12 (<= ~a29~0 274)) (.cse8 (<= 0 (+ ~a29~0 580294))) (.cse5 (= ~a4~0 0)) (.cse7 (<= (+ ~a23~0 43) 0)) (.cse9 (<= ~a29~0 275)) (.cse2 (<= ~a29~0 245)) (.cse0 (= ~a25~0 13)) (.cse6 (<= ~a25~0 9)) (.cse14 (<= ~a23~0 312)) (.cse11 (= ~a25~0 10)) (.cse16 (<= ~a23~0 599997)) (.cse18 (or (and .cse13 .cse1) (and (<= ~a25~0 10) .cse13))) (.cse10 (= ~a25~0 12)) (.cse15 (<= ~a23~0 600000)) (.cse3 (= ~a3~0 1)) (.cse17 (<= ~a29~0 130)) (.cse4 (= ~a4~0 1))) (or (and .cse0 .cse1 (= ~a8~0 15) .cse2 .cse3 .cse4) (and .cse5 (<= (+ ~a29~0 554036) 0) .cse6 .cse7 .cse8 .cse3) (and .cse9 .cse5 .cse1 .cse10 .cse3) (and .cse11 .cse1 .cse12 .cse3 .cse4) (and .cse13 .cse11 .cse4) (and .cse14 .cse10 .cse4 .cse3) (and .cse1 (<= ~a25~0 11) .cse15 .cse3 .cse4) (and .cse5 (<= ~a29~0 220) .cse8 .cse3 (<= (+ ~a23~0 55) 0)) (and .cse5 .cse0 .cse1 .cse12 .cse7 .cse3) (and .cse0 .cse16 .cse3 .cse4) (and .cse6 .cse14 .cse17 .cse4 .cse8) (and .cse5 .cse6 .cse1 .cse7 .cse3) (and .cse9 .cse6 .cse1 .cse3 .cse4) (and .cse18 .cse2 .cse3 .cse4) (and .cse0 .cse1 (<= ~a29~0 232) .cse3 .cse4) (and .cse6 .cse14 .cse3 .cse4) (and .cse11 .cse16 .cse3 .cse4) (and (<= 27009 ~a29~0) .cse18 .cse3 .cse4) (and .cse1 .cse10 .cse15 .cse3 .cse4) (and .cse13 .cse17 .cse4)))) [2020-12-22 01:19:51,968 INFO L189 CegarLoopUtils]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,968 INFO L189 CegarLoopUtils]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,968 INFO L189 CegarLoopUtils]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,968 INFO L189 CegarLoopUtils]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,968 INFO L189 CegarLoopUtils]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,968 INFO L189 CegarLoopUtils]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,968 INFO L189 CegarLoopUtils]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,968 INFO L189 CegarLoopUtils]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,968 INFO L189 CegarLoopUtils]: For program point L187(line 187) no Hoare annotation was computed. [2020-12-22 01:19:51,968 INFO L189 CegarLoopUtils]: For program point L121(line 121) no Hoare annotation was computed. [2020-12-22 01:19:51,968 INFO L189 CegarLoopUtils]: For program point L55(line 55) no Hoare annotation was computed. [2020-12-22 01:19:51,969 INFO L189 CegarLoopUtils]: For program point L980(lines 980 990) no Hoare annotation was computed. [2020-12-22 01:19:51,969 INFO L189 CegarLoopUtils]: For program point L914(lines 914 924) no Hoare annotation was computed. [2020-12-22 01:19:51,969 INFO L189 CegarLoopUtils]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2020-12-22 01:19:51,969 INFO L189 CegarLoopUtils]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2020-12-22 01:19:51,969 INFO L189 CegarLoopUtils]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,969 INFO L189 CegarLoopUtils]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,969 INFO L189 CegarLoopUtils]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,969 INFO L189 CegarLoopUtils]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,969 INFO L189 CegarLoopUtils]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,969 INFO L189 CegarLoopUtils]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,969 INFO L189 CegarLoopUtils]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,969 INFO L189 CegarLoopUtils]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,969 INFO L189 CegarLoopUtils]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,969 INFO L189 CegarLoopUtils]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,969 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 01:19:51,970 INFO L189 CegarLoopUtils]: For program point L190(line 190) no Hoare annotation was computed. [2020-12-22 01:19:51,970 INFO L189 CegarLoopUtils]: For program point L124(line 124) no Hoare annotation was computed. [2020-12-22 01:19:51,970 INFO L189 CegarLoopUtils]: For program point L58(line 58) no Hoare annotation was computed. [2020-12-22 01:19:51,970 INFO L189 CegarLoopUtils]: For program point L1049(line 1049) no Hoare annotation was computed. [2020-12-22 01:19:51,970 INFO L189 CegarLoopUtils]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,970 INFO L189 CegarLoopUtils]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,970 INFO L189 CegarLoopUtils]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,970 INFO L189 CegarLoopUtils]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,970 INFO L189 CegarLoopUtils]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,970 INFO L189 CegarLoopUtils]: For program point L193(line 193) no Hoare annotation was computed. [2020-12-22 01:19:51,970 INFO L189 CegarLoopUtils]: For program point L127(line 127) no Hoare annotation was computed. [2020-12-22 01:19:51,970 INFO L189 CegarLoopUtils]: For program point L61(line 61) no Hoare annotation was computed. [2020-12-22 01:19:51,970 INFO L189 CegarLoopUtils]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,970 INFO L189 CegarLoopUtils]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,970 INFO L189 CegarLoopUtils]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,970 INFO L189 CegarLoopUtils]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,970 INFO L189 CegarLoopUtils]: For program point L525(lines 525 535) no Hoare annotation was computed. [2020-12-22 01:19:51,970 INFO L189 CegarLoopUtils]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2020-12-22 01:19:51,971 INFO L189 CegarLoopUtils]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,971 INFO L189 CegarLoopUtils]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,971 INFO L189 CegarLoopUtils]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,971 INFO L189 CegarLoopUtils]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,971 INFO L189 CegarLoopUtils]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,971 INFO L189 CegarLoopUtils]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,971 INFO L189 CegarLoopUtils]: For program point L658(lines 658 667) no Hoare annotation was computed. [2020-12-22 01:19:51,971 INFO L189 CegarLoopUtils]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2020-12-22 01:19:51,971 INFO L189 CegarLoopUtils]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,971 INFO L189 CegarLoopUtils]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,971 INFO L189 CegarLoopUtils]: For program point L196(line 196) no Hoare annotation was computed. [2020-12-22 01:19:51,971 INFO L189 CegarLoopUtils]: For program point L130(line 130) no Hoare annotation was computed. [2020-12-22 01:19:51,971 INFO L189 CegarLoopUtils]: For program point L64(line 64) no Hoare annotation was computed. [2020-12-22 01:19:51,971 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 01:19:51,971 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 79) no Hoare annotation was computed. [2020-12-22 01:19:51,971 INFO L189 CegarLoopUtils]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,971 INFO L189 CegarLoopUtils]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,971 INFO L189 CegarLoopUtils]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,972 INFO L189 CegarLoopUtils]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,972 INFO L189 CegarLoopUtils]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,972 INFO L189 CegarLoopUtils]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,972 INFO L189 CegarLoopUtils]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,972 INFO L189 CegarLoopUtils]: For program point L199(line 199) no Hoare annotation was computed. [2020-12-22 01:19:51,972 INFO L189 CegarLoopUtils]: For program point L133(line 133) no Hoare annotation was computed. [2020-12-22 01:19:51,972 INFO L189 CegarLoopUtils]: For program point L67(line 67) no Hoare annotation was computed. [2020-12-22 01:19:51,972 INFO L189 CegarLoopUtils]: For program point L926(lines 926 936) no Hoare annotation was computed. [2020-12-22 01:19:51,972 INFO L189 CegarLoopUtils]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2020-12-22 01:19:51,972 INFO L189 CegarLoopUtils]: For program point L728(lines 728 740) no Hoare annotation was computed. [2020-12-22 01:19:51,972 INFO L189 CegarLoopUtils]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2020-12-22 01:19:51,972 INFO L189 CegarLoopUtils]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,972 INFO L189 CegarLoopUtils]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,972 INFO L189 CegarLoopUtils]: For program point L597(lines 597 607) no Hoare annotation was computed. [2020-12-22 01:19:51,972 INFO L189 CegarLoopUtils]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2020-12-22 01:19:51,972 INFO L189 CegarLoopUtils]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,972 INFO L189 CegarLoopUtils]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,972 INFO L189 CegarLoopUtils]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,973 INFO L189 CegarLoopUtils]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,973 INFO L189 CegarLoopUtils]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,973 INFO L189 CegarLoopUtils]: For program point L202(line 202) no Hoare annotation was computed. [2020-12-22 01:19:51,973 INFO L189 CegarLoopUtils]: For program point L136(line 136) no Hoare annotation was computed. [2020-12-22 01:19:51,973 INFO L189 CegarLoopUtils]: For program point L70(line 70) no Hoare annotation was computed. [2020-12-22 01:19:51,973 INFO L189 CegarLoopUtils]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,973 INFO L189 CegarLoopUtils]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,973 INFO L189 CegarLoopUtils]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,973 INFO L189 CegarLoopUtils]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,973 INFO L189 CegarLoopUtils]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,973 INFO L189 CegarLoopUtils]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,973 INFO L189 CegarLoopUtils]: For program point L205(line 205) no Hoare annotation was computed. [2020-12-22 01:19:51,973 INFO L189 CegarLoopUtils]: For program point L139(line 139) no Hoare annotation was computed. [2020-12-22 01:19:51,973 INFO L189 CegarLoopUtils]: For program point L73(line 73) no Hoare annotation was computed. [2020-12-22 01:19:51,974 INFO L189 CegarLoopUtils]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,974 INFO L189 CegarLoopUtils]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,974 INFO L189 CegarLoopUtils]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,974 INFO L189 CegarLoopUtils]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,974 INFO L189 CegarLoopUtils]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,974 INFO L189 CegarLoopUtils]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,974 INFO L189 CegarLoopUtils]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,974 INFO L189 CegarLoopUtils]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,974 INFO L189 CegarLoopUtils]: For program point L208(line 208) no Hoare annotation was computed. [2020-12-22 01:19:51,974 INFO L189 CegarLoopUtils]: For program point L142(line 142) no Hoare annotation was computed. [2020-12-22 01:19:51,974 INFO L189 CegarLoopUtils]: For program point L76(line 76) no Hoare annotation was computed. [2020-12-22 01:19:51,974 INFO L189 CegarLoopUtils]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,974 INFO L189 CegarLoopUtils]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,974 INFO L189 CegarLoopUtils]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,974 INFO L189 CegarLoopUtils]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,974 INFO L189 CegarLoopUtils]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,974 INFO L189 CegarLoopUtils]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,975 INFO L189 CegarLoopUtils]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,975 INFO L189 CegarLoopUtils]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,975 INFO L189 CegarLoopUtils]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,975 INFO L189 CegarLoopUtils]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,975 INFO L189 CegarLoopUtils]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,975 INFO L189 CegarLoopUtils]: For program point L409(lines 409 420) no Hoare annotation was computed. [2020-12-22 01:19:51,975 INFO L189 CegarLoopUtils]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2020-12-22 01:19:51,975 INFO L189 CegarLoopUtils]: For program point L211(line 211) no Hoare annotation was computed. [2020-12-22 01:19:51,975 INFO L189 CegarLoopUtils]: For program point L145(line 145) no Hoare annotation was computed. [2020-12-22 01:19:51,975 INFO L189 CegarLoopUtils]: For program point L79(line 79) no Hoare annotation was computed. [2020-12-22 01:19:51,975 INFO L189 CegarLoopUtils]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,975 INFO L189 CegarLoopUtils]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,975 INFO L189 CegarLoopUtils]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,975 INFO L189 CegarLoopUtils]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,975 INFO L189 CegarLoopUtils]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,975 INFO L189 CegarLoopUtils]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,975 INFO L189 CegarLoopUtils]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,975 INFO L189 CegarLoopUtils]: For program point L214(line 214) no Hoare annotation was computed. [2020-12-22 01:19:51,975 INFO L189 CegarLoopUtils]: For program point L148(line 148) no Hoare annotation was computed. [2020-12-22 01:19:51,976 INFO L189 CegarLoopUtils]: For program point L82(line 82) no Hoare annotation was computed. [2020-12-22 01:19:51,976 INFO L189 CegarLoopUtils]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,976 INFO L189 CegarLoopUtils]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,976 INFO L189 CegarLoopUtils]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,976 INFO L189 CegarLoopUtils]: For program point L876(lines 876 885) no Hoare annotation was computed. [2020-12-22 01:19:51,976 INFO L189 CegarLoopUtils]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2020-12-22 01:19:51,976 INFO L189 CegarLoopUtils]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,976 INFO L189 CegarLoopUtils]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,976 INFO L189 CegarLoopUtils]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,976 INFO L189 CegarLoopUtils]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,976 INFO L189 CegarLoopUtils]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,976 INFO L189 CegarLoopUtils]: For program point L151(line 151) no Hoare annotation was computed. [2020-12-22 01:19:51,976 INFO L189 CegarLoopUtils]: For program point L85(line 85) no Hoare annotation was computed. [2020-12-22 01:19:51,976 INFO L189 CegarLoopUtils]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,976 INFO L189 CegarLoopUtils]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,976 INFO L189 CegarLoopUtils]: For program point L614(lines 614 624) no Hoare annotation was computed. [2020-12-22 01:19:51,976 INFO L189 CegarLoopUtils]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2020-12-22 01:19:51,976 INFO L189 CegarLoopUtils]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,977 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 01:19:51,977 INFO L189 CegarLoopUtils]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,977 INFO L189 CegarLoopUtils]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,977 INFO L189 CegarLoopUtils]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,977 INFO L189 CegarLoopUtils]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,977 INFO L189 CegarLoopUtils]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,977 INFO L189 CegarLoopUtils]: For program point L154(line 154) no Hoare annotation was computed. [2020-12-22 01:19:51,977 INFO L189 CegarLoopUtils]: For program point L88(line 88) no Hoare annotation was computed. [2020-12-22 01:19:51,977 INFO L189 CegarLoopUtils]: For program point L815(lines 815 825) no Hoare annotation was computed. [2020-12-22 01:19:51,977 INFO L189 CegarLoopUtils]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2020-12-22 01:19:51,977 INFO L189 CegarLoopUtils]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,977 INFO L189 CegarLoopUtils]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,977 INFO L189 CegarLoopUtils]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,977 INFO L189 CegarLoopUtils]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,977 INFO L189 CegarLoopUtils]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,977 INFO L189 CegarLoopUtils]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,977 INFO L189 CegarLoopUtils]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,977 INFO L189 CegarLoopUtils]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,978 INFO L189 CegarLoopUtils]: For program point L157(line 157) no Hoare annotation was computed. [2020-12-22 01:19:51,978 INFO L189 CegarLoopUtils]: For program point L91(line 91) no Hoare annotation was computed. [2020-12-22 01:19:51,978 INFO L189 CegarLoopUtils]: For program point L950(lines 950 962) no Hoare annotation was computed. [2020-12-22 01:19:51,978 INFO L189 CegarLoopUtils]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2020-12-22 01:19:51,978 INFO L189 CegarLoopUtils]: For program point L488(lines 488 496) no Hoare annotation was computed. [2020-12-22 01:19:51,978 INFO L189 CegarLoopUtils]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2020-12-22 01:19:51,978 INFO L189 CegarLoopUtils]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,978 INFO L189 CegarLoopUtils]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,978 INFO L189 CegarLoopUtils]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,978 INFO L189 CegarLoopUtils]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,978 INFO L189 CegarLoopUtils]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,979 INFO L189 CegarLoopUtils]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,979 INFO L189 CegarLoopUtils]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,979 INFO L189 CegarLoopUtils]: For program point L160(line 160) no Hoare annotation was computed. [2020-12-22 01:19:51,979 INFO L189 CegarLoopUtils]: For program point L94(line 94) no Hoare annotation was computed. [2020-12-22 01:19:51,979 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 01:19:51,979 INFO L189 CegarLoopUtils]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,979 INFO L189 CegarLoopUtils]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,979 INFO L189 CegarLoopUtils]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,979 INFO L189 CegarLoopUtils]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,979 INFO L189 CegarLoopUtils]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,979 INFO L189 CegarLoopUtils]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,980 INFO L189 CegarLoopUtils]: For program point L163(line 163) no Hoare annotation was computed. [2020-12-22 01:19:51,980 INFO L189 CegarLoopUtils]: For program point L97(line 97) no Hoare annotation was computed. [2020-12-22 01:19:51,980 INFO L189 CegarLoopUtils]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,980 INFO L189 CegarLoopUtils]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,980 INFO L189 CegarLoopUtils]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,980 INFO L189 CegarLoopUtils]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,980 INFO L189 CegarLoopUtils]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,980 INFO L189 CegarLoopUtils]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,980 INFO L189 CegarLoopUtils]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,980 INFO L189 CegarLoopUtils]: For program point L33(lines 33 35) no Hoare annotation was computed. [2020-12-22 01:19:51,980 INFO L189 CegarLoopUtils]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2020-12-22 01:19:51,980 INFO L189 CegarLoopUtils]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,981 INFO L189 CegarLoopUtils]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2020-12-22 01:19:51,981 INFO L189 CegarLoopUtils]: For program point L166(line 166) no Hoare annotation was computed. [2020-12-22 01:19:51,981 INFO L189 CegarLoopUtils]: For program point L100(line 100) no Hoare annotation was computed. [2020-12-22 01:19:51,981 INFO L189 CegarLoopUtils]: For program point L34(line 34) no Hoare annotation was computed. [2020-12-22 01:19:51,981 INFO L189 CegarLoopUtils]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2020-12-22 01:19:52,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 01:19:52 BoogieIcfgContainer [2020-12-22 01:19:52,033 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 01:19:52,034 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 01:19:52,034 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 01:19:52,037 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 01:19:52,038 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:18:12" (3/4) ... [2020-12-22 01:19:52,045 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 01:19:52,079 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-22 01:19:52,081 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 01:19:52,083 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 01:19:52,085 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 01:19:52,278 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/eca-rers2012/Problem11_label41.c-witness.graphml [2020-12-22 01:19:52,278 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 01:19:52,279 INFO L168 Benchmark]: Toolchain (without parser) took 102845.91 ms. Allocated memory was 154.1 MB in the beginning and 2.5 GB in the end (delta: 2.3 GB). Free memory was 127.1 MB in the beginning and 2.2 GB in the end (delta: -2.1 GB). Peak memory consumption was 225.7 MB. Max. memory is 8.0 GB. [2020-12-22 01:19:52,279 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 154.1 MB. Free memory is still 126.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 01:19:52,280 INFO L168 Benchmark]: CACSL2BoogieTranslator took 924.09 ms. Allocated memory is still 154.1 MB. Free memory was 126.9 MB in the beginning and 116.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 29.3 MB. Max. memory is 8.0 GB. [2020-12-22 01:19:52,280 INFO L168 Benchmark]: Boogie Procedure Inliner took 194.60 ms. Allocated memory is still 154.1 MB. Free memory was 116.0 MB in the beginning and 99.2 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2020-12-22 01:19:52,280 INFO L168 Benchmark]: Boogie Preprocessor took 161.04 ms. Allocated memory is still 154.1 MB. Free memory was 99.2 MB in the beginning and 88.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-22 01:19:52,281 INFO L168 Benchmark]: RCFGBuilder took 2231.38 ms. Allocated memory was 154.1 MB in the beginning and 235.9 MB in the end (delta: 81.8 MB). Free memory was 88.7 MB in the beginning and 146.9 MB in the end (delta: -58.2 MB). Peak memory consumption was 63.7 MB. Max. memory is 8.0 GB. [2020-12-22 01:19:52,281 INFO L168 Benchmark]: TraceAbstraction took 99068.94 ms. Allocated memory was 235.9 MB in the beginning and 2.5 GB in the end (delta: 2.2 GB). Free memory was 146.3 MB in the beginning and 2.2 GB in the end (delta: -2.1 GB). Peak memory consumption was 1.5 GB. Max. memory is 8.0 GB. [2020-12-22 01:19:52,282 INFO L168 Benchmark]: Witness Printer took 244.53 ms. Allocated memory is still 2.5 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 26.0 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-12-22 01:19:52,284 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 154.1 MB. Free memory is still 126.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 924.09 ms. Allocated memory is still 154.1 MB. Free memory was 126.9 MB in the beginning and 116.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 29.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 194.60 ms. Allocated memory is still 154.1 MB. Free memory was 116.0 MB in the beginning and 99.2 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 161.04 ms. Allocated memory is still 154.1 MB. Free memory was 99.2 MB in the beginning and 88.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2231.38 ms. Allocated memory was 154.1 MB in the beginning and 235.9 MB in the end (delta: 81.8 MB). Free memory was 88.7 MB in the beginning and 146.9 MB in the end (delta: -58.2 MB). Peak memory consumption was 63.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 99068.94 ms. Allocated memory was 235.9 MB in the beginning and 2.5 GB in the end (delta: 2.2 GB). Free memory was 146.3 MB in the beginning and 2.2 GB in the end (delta: -2.1 GB). Peak memory consumption was 1.5 GB. Max. memory is 8.0 GB. * Witness Printer took 244.53 ms. Allocated memory is still 2.5 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 26.0 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 79]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((a25 == 13 && 140 < a29) && a8 == 15) && a29 <= 245) && a3 == 1) && a4 == 1) || (((((a4 == 0 && a29 + 554036 <= 0) && a25 <= 9) && a23 + 43 <= 0) && 0 <= a29 + 580294) && a3 == 1)) || ((((a29 <= 275 && a4 == 0) && 140 < a29) && a25 == 12) && a3 == 1)) || ((((a25 == 10 && 140 < a29) && a29 <= 274) && a3 == 1) && a4 == 1)) || ((a23 <= 138 && a25 == 10) && a4 == 1)) || (((a23 <= 312 && a25 == 12) && a4 == 1) && a3 == 1)) || ((((140 < a29 && a25 <= 11) && a23 <= 600000) && a3 == 1) && a4 == 1)) || ((((a4 == 0 && a29 <= 220) && 0 <= a29 + 580294) && a3 == 1) && a23 + 55 <= 0)) || (((((a4 == 0 && a25 == 13) && 140 < a29) && a29 <= 274) && a23 + 43 <= 0) && a3 == 1)) || (((a25 == 13 && a23 <= 599997) && a3 == 1) && a4 == 1)) || ((((a25 <= 9 && a23 <= 312) && a29 <= 130) && a4 == 1) && 0 <= a29 + 580294)) || ((((a4 == 0 && a25 <= 9) && 140 < a29) && a23 + 43 <= 0) && a3 == 1)) || ((((a29 <= 275 && a25 <= 9) && 140 < a29) && a3 == 1) && a4 == 1)) || (((((a23 <= 138 && 140 < a29) || (a25 <= 10 && a23 <= 138)) && a29 <= 245) && a3 == 1) && a4 == 1)) || ((((a25 == 13 && 140 < a29) && a29 <= 232) && a3 == 1) && a4 == 1)) || (((a25 <= 9 && a23 <= 312) && a3 == 1) && a4 == 1)) || (((a25 == 10 && a23 <= 599997) && a3 == 1) && a4 == 1)) || (((27009 <= a29 && ((a23 <= 138 && 140 < a29) || (a25 <= 10 && a23 <= 138))) && a3 == 1) && a4 == 1)) || ((((140 < a29 && a25 == 12) && a23 <= 600000) && a3 == 1) && a4 == 1)) || ((a23 <= 138 && a29 <= 130) && a4 == 1) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((a25 == 13 && 140 < a29) && a8 == 15) && a29 <= 245) && a3 == 1) && a4 == 1) || (((((a4 == 0 && a29 + 554036 <= 0) && a25 <= 9) && a23 + 43 <= 0) && 0 <= a29 + 580294) && a3 == 1)) || ((((a29 <= 275 && a4 == 0) && 140 < a29) && a25 == 12) && a3 == 1)) || ((((a25 == 10 && 140 < a29) && a29 <= 274) && a3 == 1) && a4 == 1)) || ((a23 <= 138 && a25 == 10) && a4 == 1)) || (((a23 <= 312 && a25 == 12) && a4 == 1) && a3 == 1)) || ((((140 < a29 && a25 <= 11) && a23 <= 600000) && a3 == 1) && a4 == 1)) || ((((a4 == 0 && a29 <= 220) && 0 <= a29 + 580294) && a3 == 1) && a23 + 55 <= 0)) || (((((a4 == 0 && a25 == 13) && 140 < a29) && a29 <= 274) && a23 + 43 <= 0) && a3 == 1)) || (((a25 == 13 && a23 <= 599997) && a3 == 1) && a4 == 1)) || ((((a25 <= 9 && a23 <= 312) && a29 <= 130) && a4 == 1) && 0 <= a29 + 580294)) || ((((a4 == 0 && a25 <= 9) && 140 < a29) && a23 + 43 <= 0) && a3 == 1)) || ((((a29 <= 275 && a25 <= 9) && 140 < a29) && a3 == 1) && a4 == 1)) || (((((a23 <= 138 && 140 < a29) || (a25 <= 10 && a23 <= 138)) && a29 <= 245) && a3 == 1) && a4 == 1)) || ((((a25 == 13 && 140 < a29) && a29 <= 232) && a3 == 1) && a4 == 1)) || (((a25 <= 9 && a23 <= 312) && a3 == 1) && a4 == 1)) || (((a25 == 10 && a23 <= 599997) && a3 == 1) && a4 == 1)) || (((27009 <= a29 && ((a23 <= 138 && 140 < a29) || (a25 <= 10 && a23 <= 138))) && a3 == 1) && a4 == 1)) || ((((140 < a29 && a25 == 12) && a23 <= 600000) && a3 == 1) && a4 == 1)) || ((a23 <= 138 && a29 <= 130) && a4 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 283 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 87.6s, OverallIterations: 30, TraceHistogramMax: 12, AutomataDifference: 44.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 11.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5136 SDtfs, 5285 SDslu, 769 SDs, 0 SdLazy, 22085 SolverSat, 3259 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 29.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4598 GetRequests, 4518 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20681occurred in iteration=22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.8s AutomataMinimizationTime, 30 MinimizatonAttempts, 38023 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 161 NumberOfFragments, 681 HoareAnnotationTreeSize, 3 FomulaSimplifications, 767614 FormulaSimplificationTreeSizeReduction, 4.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 146886 FormulaSimplificationTreeSizeReductionInter, 7.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.0s SsaConstructionTime, 3.4s SatisfiabilityAnalysisTime, 14.1s InterpolantComputationTime, 23465 NumberOfCodeBlocks, 23465 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 23430 ConstructedInterpolants, 0 QuantifiedInterpolants, 54625060 SizeOfPredicates, 0 NumberOfNonLiveVariables, 5823 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 35 InterpolantComputations, 29 PerfectInterpolantSequences, 65264/66983 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...