/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/recursive/Ackermann03.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 04:48:23,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 04:48:23,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 04:48:23,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 04:48:23,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 04:48:23,352 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 04:48:23,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 04:48:23,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 04:48:23,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 04:48:23,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 04:48:23,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 04:48:23,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 04:48:23,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 04:48:23,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 04:48:23,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 04:48:23,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 04:48:23,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 04:48:23,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 04:48:23,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 04:48:23,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 04:48:23,416 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 04:48:23,442 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 04:48:23,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 04:48:23,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 04:48:23,447 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 04:48:23,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 04:48:23,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 04:48:23,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 04:48:23,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 04:48:23,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 04:48:23,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 04:48:23,449 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 04:48:23,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 04:48:23,450 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 04:48:23,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 04:48:23,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 04:48:23,450 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 04:48:23,451 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 04:48:23,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 04:48:23,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 04:48:23,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 04:48:23,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 04:48:23,452 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 04:48:23,452 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 04:48:23,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 04:48:23,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 04:48:23,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 04:48:23,869 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 04:48:23,870 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 04:48:23,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Ackermann03.c [2020-11-07 04:48:23,960 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d65f4c3a/d89bc338f56d42849f8ce233a59dce06/FLAG2f2fb1c45 [2020-11-07 04:48:24,645 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 04:48:24,646 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/Ackermann03.c [2020-11-07 04:48:24,654 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d65f4c3a/d89bc338f56d42849f8ce233a59dce06/FLAG2f2fb1c45 [2020-11-07 04:48:25,040 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d65f4c3a/d89bc338f56d42849f8ce233a59dce06 [2020-11-07 04:48:25,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 04:48:25,060 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 04:48:25,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 04:48:25,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 04:48:25,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 04:48:25,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:48:25" (1/1) ... [2020-11-07 04:48:25,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@578c52ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:25, skipping insertion in model container [2020-11-07 04:48:25,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:48:25" (1/1) ... [2020-11-07 04:48:25,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 04:48:25,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 04:48:25,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:48:25,306 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 04:48:25,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:48:25,342 INFO L208 MainTranslator]: Completed translation [2020-11-07 04:48:25,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:25 WrapperNode [2020-11-07 04:48:25,343 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 04:48:25,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 04:48:25,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 04:48:25,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 04:48:25,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:25" (1/1) ... [2020-11-07 04:48:25,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:25" (1/1) ... [2020-11-07 04:48:25,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:25" (1/1) ... [2020-11-07 04:48:25,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:25" (1/1) ... [2020-11-07 04:48:25,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:25" (1/1) ... [2020-11-07 04:48:25,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:25" (1/1) ... [2020-11-07 04:48:25,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:25" (1/1) ... [2020-11-07 04:48:25,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 04:48:25,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 04:48:25,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 04:48:25,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 04:48:25,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:25" (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 [2020-11-07 04:48:25,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 04:48:25,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 04:48:25,512 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 04:48:25,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ackermann [2020-11-07 04:48:25,513 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 04:48:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 04:48:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 04:48:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 04:48:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 04:48:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 04:48:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure ackermann [2020-11-07 04:48:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 04:48:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 04:48:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 04:48:25,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 04:48:25,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 04:48:25,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 04:48:25,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 04:48:25,946 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 04:48:25,947 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-07 04:48:25,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:48:25 BoogieIcfgContainer [2020-11-07 04:48:25,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 04:48:25,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 04:48:25,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 04:48:25,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 04:48:25,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:48:25" (1/3) ... [2020-11-07 04:48:25,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10638d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:48:25, skipping insertion in model container [2020-11-07 04:48:25,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:25" (2/3) ... [2020-11-07 04:48:25,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10638d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:48:25, skipping insertion in model container [2020-11-07 04:48:25,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:48:25" (3/3) ... [2020-11-07 04:48:25,963 INFO L111 eAbstractionObserver]: Analyzing ICFG Ackermann03.c [2020-11-07 04:48:25,981 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 04:48:25,985 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 04:48:26,001 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 04:48:26,036 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 04:48:26,036 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 04:48:26,036 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 04:48:26,036 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 04:48:26,037 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 04:48:26,037 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 04:48:26,037 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 04:48:26,037 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 04:48:26,062 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-11-07 04:48:26,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-07 04:48:26,080 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:48:26,081 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:48:26,081 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:48:26,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:48:26,090 INFO L82 PathProgramCache]: Analyzing trace with hash -946996355, now seen corresponding path program 1 times [2020-11-07 04:48:26,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:48:26,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1553159391] [2020-11-07 04:48:26,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:48:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:26,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:48:26,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:26,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:48:26,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:26,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:48:26,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1553159391] [2020-11-07 04:48:26,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:48:26,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 04:48:26,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288577593] [2020-11-07 04:48:26,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 04:48:26,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:48:26,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 04:48:26,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 04:48:26,575 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 6 states. [2020-11-07 04:48:27,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:48:27,120 INFO L93 Difference]: Finished difference Result 101 states and 124 transitions. [2020-11-07 04:48:27,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 04:48:27,122 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-11-07 04:48:27,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:48:27,134 INFO L225 Difference]: With dead ends: 101 [2020-11-07 04:48:27,134 INFO L226 Difference]: Without dead ends: 54 [2020-11-07 04:48:27,139 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-11-07 04:48:27,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-07 04:48:27,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-11-07 04:48:27,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-07 04:48:27,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2020-11-07 04:48:27,200 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 33 [2020-11-07 04:48:27,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:48:27,201 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2020-11-07 04:48:27,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 04:48:27,201 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2020-11-07 04:48:27,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-07 04:48:27,205 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:48:27,205 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-07 04:48:27,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 04:48:27,206 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:48:27,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:48:27,207 INFO L82 PathProgramCache]: Analyzing trace with hash 300807360, now seen corresponding path program 1 times [2020-11-07 04:48:27,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:48:27,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1230120395] [2020-11-07 04:48:27,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:48:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:27,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:48:27,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:27,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:48:27,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:27,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:27,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:27,395 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-07 04:48:27,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1230120395] [2020-11-07 04:48:27,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 04:48:27,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-11-07 04:48:27,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786557175] [2020-11-07 04:48:27,398 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 04:48:27,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:48:27,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 04:48:27,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 04:48:27,400 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand 6 states. [2020-11-07 04:48:27,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:48:27,758 INFO L93 Difference]: Finished difference Result 93 states and 118 transitions. [2020-11-07 04:48:27,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 04:48:27,759 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-11-07 04:48:27,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:48:27,762 INFO L225 Difference]: With dead ends: 93 [2020-11-07 04:48:27,762 INFO L226 Difference]: Without dead ends: 56 [2020-11-07 04:48:27,765 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-11-07 04:48:27,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-11-07 04:48:27,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-11-07 04:48:27,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-07 04:48:27,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 65 transitions. [2020-11-07 04:48:27,787 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 65 transitions. Word has length 43 [2020-11-07 04:48:27,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:48:27,788 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 65 transitions. [2020-11-07 04:48:27,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 04:48:27,788 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2020-11-07 04:48:27,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-11-07 04:48:27,792 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:48:27,792 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2020-11-07 04:48:27,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 04:48:27,792 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:48:27,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:48:27,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1772464485, now seen corresponding path program 1 times [2020-11-07 04:48:27,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:48:27,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [71821318] [2020-11-07 04:48:27,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:48:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:27,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:48:27,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:27,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:48:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:27,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:28,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:28,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:48:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:28,024 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-07 04:48:28,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [71821318] [2020-11-07 04:48:28,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 04:48:28,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 04:48:28,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053419431] [2020-11-07 04:48:28,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 04:48:28,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:48:28,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 04:48:28,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-07 04:48:28,027 INFO L87 Difference]: Start difference. First operand 56 states and 65 transitions. Second operand 7 states. [2020-11-07 04:48:28,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:48:28,550 INFO L93 Difference]: Finished difference Result 85 states and 107 transitions. [2020-11-07 04:48:28,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-07 04:48:28,550 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 62 [2020-11-07 04:48:28,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:48:28,555 INFO L225 Difference]: With dead ends: 85 [2020-11-07 04:48:28,555 INFO L226 Difference]: Without dead ends: 78 [2020-11-07 04:48:28,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-07 04:48:28,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-11-07 04:48:28,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-11-07 04:48:28,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-11-07 04:48:28,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2020-11-07 04:48:28,583 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 62 [2020-11-07 04:48:28,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:48:28,584 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2020-11-07 04:48:28,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 04:48:28,584 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2020-11-07 04:48:28,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-11-07 04:48:28,589 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:48:28,589 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 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] [2020-11-07 04:48:28,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 04:48:28,590 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:48:28,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:48:28,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1545390750, now seen corresponding path program 2 times [2020-11-07 04:48:28,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:48:28,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [251469570] [2020-11-07 04:48:28,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:48:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:28,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:48:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:28,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:48:28,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:28,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:28,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:28,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:28,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:28,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:28,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:28,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:48:28,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:28,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 04:48:28,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:28,809 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-11-07 04:48:28,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [251469570] [2020-11-07 04:48:28,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 04:48:28,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 04:48:28,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007702862] [2020-11-07 04:48:28,811 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 04:48:28,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:48:28,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 04:48:28,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-07 04:48:28,812 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand 7 states. [2020-11-07 04:48:29,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:48:29,357 INFO L93 Difference]: Finished difference Result 117 states and 169 transitions. [2020-11-07 04:48:29,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-07 04:48:29,358 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2020-11-07 04:48:29,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:48:29,362 INFO L225 Difference]: With dead ends: 117 [2020-11-07 04:48:29,363 INFO L226 Difference]: Without dead ends: 110 [2020-11-07 04:48:29,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-07 04:48:29,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-11-07 04:48:29,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-11-07 04:48:29,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-11-07 04:48:29,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 162 transitions. [2020-11-07 04:48:29,419 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 162 transitions. Word has length 81 [2020-11-07 04:48:29,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:48:29,420 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 162 transitions. [2020-11-07 04:48:29,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 04:48:29,420 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 162 transitions. [2020-11-07 04:48:29,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-11-07 04:48:29,425 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:48:29,425 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 11, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:48:29,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 04:48:29,425 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:48:29,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:48:29,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1932765146, now seen corresponding path program 3 times [2020-11-07 04:48:29,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:48:29,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [264900913] [2020-11-07 04:48:29,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:48:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:29,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:48:29,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:29,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:48:29,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:29,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:29,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:29,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:29,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:29,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:29,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:29,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:29,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:48:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:29,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-07 04:48:29,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:29,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:29,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:29,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:29,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:48:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:30,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-07 04:48:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:30,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:30,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:30,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:30,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:30,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:48:30,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:30,114 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 197 proven. 298 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2020-11-07 04:48:30,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [264900913] [2020-11-07 04:48:30,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 04:48:30,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-11-07 04:48:30,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113118705] [2020-11-07 04:48:30,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-07 04:48:30,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:48:30,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-07 04:48:30,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-11-07 04:48:30,118 INFO L87 Difference]: Start difference. First operand 110 states and 162 transitions. Second operand 11 states. [2020-11-07 04:48:31,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:48:31,407 INFO L93 Difference]: Finished difference Result 230 states and 451 transitions. [2020-11-07 04:48:31,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 04:48:31,408 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 188 [2020-11-07 04:48:31,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:48:31,413 INFO L225 Difference]: With dead ends: 230 [2020-11-07 04:48:31,413 INFO L226 Difference]: Without dead ends: 126 [2020-11-07 04:48:31,420 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2020-11-07 04:48:31,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-11-07 04:48:31,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 125. [2020-11-07 04:48:31,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-07 04:48:31,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 176 transitions. [2020-11-07 04:48:31,460 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 176 transitions. Word has length 188 [2020-11-07 04:48:31,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:48:31,461 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 176 transitions. [2020-11-07 04:48:31,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-07 04:48:31,461 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 176 transitions. [2020-11-07 04:48:31,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-11-07 04:48:31,463 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:48:31,464 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:48:31,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 04:48:31,464 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:48:31,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:48:31,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1837059662, now seen corresponding path program 4 times [2020-11-07 04:48:31,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:48:31,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1816646898] [2020-11-07 04:48:31,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:48:31,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:31,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:48:31,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:31,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:48:31,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:31,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:31,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:31,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:31,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:31,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:31,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:31,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:31,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:31,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:31,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:48:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:31,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-07 04:48:31,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:31,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:31,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-11-07 04:48:31,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:31,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:31,885 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 110 proven. 71 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2020-11-07 04:48:31,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1816646898] [2020-11-07 04:48:31,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 04:48:31,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-11-07 04:48:31,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427547802] [2020-11-07 04:48:31,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-07 04:48:31,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:48:31,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-07 04:48:31,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-11-07 04:48:31,888 INFO L87 Difference]: Start difference. First operand 125 states and 176 transitions. Second operand 16 states. [2020-11-07 04:48:33,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:48:33,779 INFO L93 Difference]: Finished difference Result 264 states and 439 transitions. [2020-11-07 04:48:33,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-11-07 04:48:33,780 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 130 [2020-11-07 04:48:33,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:48:33,785 INFO L225 Difference]: With dead ends: 264 [2020-11-07 04:48:33,785 INFO L226 Difference]: Without dead ends: 164 [2020-11-07 04:48:33,788 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=377, Invalid=1263, Unknown=0, NotChecked=0, Total=1640 [2020-11-07 04:48:33,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-11-07 04:48:33,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 125. [2020-11-07 04:48:33,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-07 04:48:33,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 167 transitions. [2020-11-07 04:48:33,833 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 167 transitions. Word has length 130 [2020-11-07 04:48:33,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:48:33,834 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 167 transitions. [2020-11-07 04:48:33,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-07 04:48:33,834 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 167 transitions. [2020-11-07 04:48:33,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-11-07 04:48:33,837 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:48:33,837 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 10, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:48:33,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 04:48:33,837 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:48:33,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:48:33,838 INFO L82 PathProgramCache]: Analyzing trace with hash 358934721, now seen corresponding path program 5 times [2020-11-07 04:48:33,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:48:33,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1952007644] [2020-11-07 04:48:33,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:48:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:33,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:48:33,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:33,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:48:33,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:33,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:33,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:34,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:34,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:34,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:34,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:34,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:34,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:34,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:48:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:34,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-07 04:48:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:34,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:34,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:34,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:34,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:48:34,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:34,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-11-07 04:48:34,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:34,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:34,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:34,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:34,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:34,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:48:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:34,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 04:48:34,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:34,346 INFO L134 CoverageAnalysis]: Checked inductivity of 875 backedges. 290 proven. 130 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2020-11-07 04:48:34,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1952007644] [2020-11-07 04:48:34,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 04:48:34,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-11-07 04:48:34,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47708831] [2020-11-07 04:48:34,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-07 04:48:34,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:48:34,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-07 04:48:34,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-11-07 04:48:34,349 INFO L87 Difference]: Start difference. First operand 125 states and 167 transitions. Second operand 16 states. [2020-11-07 04:48:37,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:48:37,300 INFO L93 Difference]: Finished difference Result 327 states and 576 transitions. [2020-11-07 04:48:37,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-11-07 04:48:37,301 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 187 [2020-11-07 04:48:37,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:48:37,306 INFO L225 Difference]: With dead ends: 327 [2020-11-07 04:48:37,306 INFO L226 Difference]: Without dead ends: 227 [2020-11-07 04:48:37,311 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 709 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=694, Invalid=2276, Unknown=0, NotChecked=0, Total=2970 [2020-11-07 04:48:37,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2020-11-07 04:48:37,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 166. [2020-11-07 04:48:37,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-11-07 04:48:37,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 232 transitions. [2020-11-07 04:48:37,374 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 232 transitions. Word has length 187 [2020-11-07 04:48:37,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:48:37,375 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 232 transitions. [2020-11-07 04:48:37,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-07 04:48:37,375 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 232 transitions. [2020-11-07 04:48:37,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-11-07 04:48:37,378 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:48:37,379 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 12, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:48:37,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-07 04:48:37,379 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:48:37,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:48:37,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1590080201, now seen corresponding path program 6 times [2020-11-07 04:48:37,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:48:37,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [992319012] [2020-11-07 04:48:37,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:48:37,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:37,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:48:37,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:37,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:48:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:37,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:37,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:37,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:37,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:37,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:37,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:37,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:37,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:48:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:37,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-07 04:48:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:37,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:37,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:37,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:37,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:37,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:37,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:48:37,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:37,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 04:48:37,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:37,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-11-07 04:48:37,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:37,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:37,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:37,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:37,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:37,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:37,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:48:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:37,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 04:48:37,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:37,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 04:48:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:38,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1372 backedges. 188 proven. 423 refuted. 0 times theorem prover too weak. 761 trivial. 0 not checked. [2020-11-07 04:48:38,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [992319012] [2020-11-07 04:48:38,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 04:48:38,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-11-07 04:48:38,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452005617] [2020-11-07 04:48:38,056 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-07 04:48:38,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:48:38,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-07 04:48:38,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2020-11-07 04:48:38,058 INFO L87 Difference]: Start difference. First operand 166 states and 232 transitions. Second operand 17 states. [2020-11-07 04:48:41,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:48:41,416 INFO L93 Difference]: Finished difference Result 361 states and 564 transitions. [2020-11-07 04:48:41,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-11-07 04:48:41,416 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 225 [2020-11-07 04:48:41,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:48:41,421 INFO L225 Difference]: With dead ends: 361 [2020-11-07 04:48:41,422 INFO L226 Difference]: Without dead ends: 209 [2020-11-07 04:48:41,429 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 898 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=845, Invalid=2815, Unknown=0, NotChecked=0, Total=3660 [2020-11-07 04:48:41,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-11-07 04:48:41,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 162. [2020-11-07 04:48:41,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-11-07 04:48:41,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 216 transitions. [2020-11-07 04:48:41,484 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 216 transitions. Word has length 225 [2020-11-07 04:48:41,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:48:41,486 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 216 transitions. [2020-11-07 04:48:41,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-07 04:48:41,486 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 216 transitions. [2020-11-07 04:48:41,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-11-07 04:48:41,491 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:48:41,491 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 23, 13, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:48:41,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-07 04:48:41,492 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:48:41,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:48:41,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1904198470, now seen corresponding path program 7 times [2020-11-07 04:48:41,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:48:41,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1719876915] [2020-11-07 04:48:41,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:48:41,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:41,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:48:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:41,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:48:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:41,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:41,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:41,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:41,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:41,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:41,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:41,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:41,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:48:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:41,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-07 04:48:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:41,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:41,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:41,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:41,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:41,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:41,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:42,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:48:42,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:42,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 04:48:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:42,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 04:48:42,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:42,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 04:48:42,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:42,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:42,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:42,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:42,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:42,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:42,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:42,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:48:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:42,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 04:48:42,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:42,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 04:48:42,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:42,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1664 backedges. 525 proven. 337 refuted. 0 times theorem prover too weak. 802 trivial. 0 not checked. [2020-11-07 04:48:42,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1719876915] [2020-11-07 04:48:42,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 04:48:42,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-11-07 04:48:42,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640242172] [2020-11-07 04:48:42,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-07 04:48:42,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:48:42,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-07 04:48:42,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2020-11-07 04:48:42,424 INFO L87 Difference]: Start difference. First operand 162 states and 216 transitions. Second operand 23 states. [2020-11-07 04:48:48,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:48:48,553 INFO L93 Difference]: Finished difference Result 411 states and 644 transitions. [2020-11-07 04:48:48,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2020-11-07 04:48:48,560 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 244 [2020-11-07 04:48:48,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:48:48,570 INFO L225 Difference]: With dead ends: 411 [2020-11-07 04:48:48,570 INFO L226 Difference]: Without dead ends: 275 [2020-11-07 04:48:48,577 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2357 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1717, Invalid=7025, Unknown=0, NotChecked=0, Total=8742 [2020-11-07 04:48:48,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-11-07 04:48:48,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 198. [2020-11-07 04:48:48,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-11-07 04:48:48,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 276 transitions. [2020-11-07 04:48:48,639 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 276 transitions. Word has length 244 [2020-11-07 04:48:48,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:48:48,640 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 276 transitions. [2020-11-07 04:48:48,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-11-07 04:48:48,640 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 276 transitions. [2020-11-07 04:48:48,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-11-07 04:48:48,645 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:48:48,646 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 25, 14, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:48:48,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-07 04:48:48,646 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:48:48,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:48:48,647 INFO L82 PathProgramCache]: Analyzing trace with hash 198340805, now seen corresponding path program 8 times [2020-11-07 04:48:48,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:48:48,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1071253769] [2020-11-07 04:48:48,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:48:48,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:48,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:48:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:48,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:48:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:48,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:48,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:48,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:48,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:48,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:48,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:48,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:48,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:48,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:48:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:48,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-07 04:48:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:49,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:49,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:49,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:49,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:49,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:49,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:49,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:48:49,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:49,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 04:48:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:49,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 04:48:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:49,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 04:48:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:49,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:49,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:49,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:49,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:49,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:49,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:49,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:49,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:48:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:49,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 04:48:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:49,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 04:48:49,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:49,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-11-07 04:48:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:49,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1985 backedges. 588 proven. 448 refuted. 0 times theorem prover too weak. 949 trivial. 0 not checked. [2020-11-07 04:48:49,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1071253769] [2020-11-07 04:48:49,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 04:48:49,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-11-07 04:48:49,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23757584] [2020-11-07 04:48:49,643 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-11-07 04:48:49,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:48:49,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-11-07 04:48:49,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2020-11-07 04:48:49,645 INFO L87 Difference]: Start difference. First operand 198 states and 276 transitions. Second operand 24 states. [2020-11-07 04:48:56,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:48:56,279 INFO L93 Difference]: Finished difference Result 483 states and 787 transitions. [2020-11-07 04:48:56,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2020-11-07 04:48:56,279 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 263 [2020-11-07 04:48:56,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:48:56,286 INFO L225 Difference]: With dead ends: 483 [2020-11-07 04:48:56,287 INFO L226 Difference]: Without dead ends: 311 [2020-11-07 04:48:56,295 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2913 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=1985, Invalid=8317, Unknown=0, NotChecked=0, Total=10302 [2020-11-07 04:48:56,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2020-11-07 04:48:56,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 222. [2020-11-07 04:48:56,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-11-07 04:48:56,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 318 transitions. [2020-11-07 04:48:56,358 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 318 transitions. Word has length 263 [2020-11-07 04:48:56,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:48:56,358 INFO L481 AbstractCegarLoop]: Abstraction has 222 states and 318 transitions. [2020-11-07 04:48:56,359 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-11-07 04:48:56,359 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 318 transitions. [2020-11-07 04:48:56,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2020-11-07 04:48:56,363 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:48:56,363 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 27, 15, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:48:56,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-07 04:48:56,364 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:48:56,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:48:56,364 INFO L82 PathProgramCache]: Analyzing trace with hash 2013349288, now seen corresponding path program 9 times [2020-11-07 04:48:56,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:48:56,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [76429656] [2020-11-07 04:48:56,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:48:56,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:56,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:48:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:56,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:48:56,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:56,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:56,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:56,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:56,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:56,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:56,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:48:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:56,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-07 04:48:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:56,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:56,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:56,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:56,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:56,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:56,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:48:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:56,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 04:48:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:56,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 04:48:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:56,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 04:48:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:56,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:56,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:56,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:56,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:57,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:57,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:57,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:57,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:57,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:48:57,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:57,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:48:57,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:57,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 04:48:57,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:57,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 04:48:57,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:57,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-11-07 04:48:57,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:57,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-11-07 04:48:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:48:57,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2335 backedges. 737 proven. 198 refuted. 0 times theorem prover too weak. 1400 trivial. 0 not checked. [2020-11-07 04:48:57,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [76429656] [2020-11-07 04:48:57,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 04:48:57,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-11-07 04:48:57,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976452805] [2020-11-07 04:48:57,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-11-07 04:48:57,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:48:57,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-11-07 04:48:57,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=598, Unknown=0, NotChecked=0, Total=650 [2020-11-07 04:48:57,591 INFO L87 Difference]: Start difference. First operand 222 states and 318 transitions. Second operand 26 states. [2020-11-07 04:49:02,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:49:02,787 INFO L93 Difference]: Finished difference Result 398 states and 587 transitions. [2020-11-07 04:49:02,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-11-07 04:49:02,787 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 282 [2020-11-07 04:49:02,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:49:02,794 INFO L225 Difference]: With dead ends: 398 [2020-11-07 04:49:02,795 INFO L226 Difference]: Without dead ends: 383 [2020-11-07 04:49:02,799 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 998 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=484, Invalid=4628, Unknown=0, NotChecked=0, Total=5112 [2020-11-07 04:49:02,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2020-11-07 04:49:02,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 293. [2020-11-07 04:49:02,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-11-07 04:49:02,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 448 transitions. [2020-11-07 04:49:02,885 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 448 transitions. Word has length 282 [2020-11-07 04:49:02,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:49:02,886 INFO L481 AbstractCegarLoop]: Abstraction has 293 states and 448 transitions. [2020-11-07 04:49:02,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-11-07 04:49:02,886 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 448 transitions. [2020-11-07 04:49:02,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-11-07 04:49:02,892 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:49:02,892 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 29, 16, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:49:02,892 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-07 04:49:02,893 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:49:02,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:49:02,893 INFO L82 PathProgramCache]: Analyzing trace with hash 505206055, now seen corresponding path program 10 times [2020-11-07 04:49:02,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:49:02,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1108442364] [2020-11-07 04:49:02,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:49:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:49:03,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:49:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:49:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-07 04:49:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:03,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:03,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:49:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 04:49:03,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 04:49:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 04:49:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:03,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:03,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:49:03,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 04:49:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 04:49:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-11-07 04:49:03,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-11-07 04:49:03,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:03,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-11-07 04:49:03,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:04,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2714 backedges. 792 proven. 634 refuted. 0 times theorem prover too weak. 1288 trivial. 0 not checked. [2020-11-07 04:49:04,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1108442364] [2020-11-07 04:49:04,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 04:49:04,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-11-07 04:49:04,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201571199] [2020-11-07 04:49:04,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-11-07 04:49:04,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:49:04,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-11-07 04:49:04,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=562, Unknown=0, NotChecked=0, Total=650 [2020-11-07 04:49:04,040 INFO L87 Difference]: Start difference. First operand 293 states and 448 transitions. Second operand 26 states. [2020-11-07 04:49:07,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:49:07,004 INFO L93 Difference]: Finished difference Result 714 states and 1268 transitions. [2020-11-07 04:49:07,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-11-07 04:49:07,005 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 301 [2020-11-07 04:49:07,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:49:07,013 INFO L225 Difference]: With dead ends: 714 [2020-11-07 04:49:07,014 INFO L226 Difference]: Without dead ends: 319 [2020-11-07 04:49:07,025 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 900 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=597, Invalid=2943, Unknown=0, NotChecked=0, Total=3540 [2020-11-07 04:49:07,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2020-11-07 04:49:07,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 288. [2020-11-07 04:49:07,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-11-07 04:49:07,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 429 transitions. [2020-11-07 04:49:07,105 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 429 transitions. Word has length 301 [2020-11-07 04:49:07,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:49:07,106 INFO L481 AbstractCegarLoop]: Abstraction has 288 states and 429 transitions. [2020-11-07 04:49:07,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-11-07 04:49:07,106 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 429 transitions. [2020-11-07 04:49:07,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-11-07 04:49:07,112 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:49:07,112 INFO L422 BasicCegarLoop]: trace histogram [31, 31, 31, 17, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:49:07,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-07 04:49:07,113 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:49:07,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:49:07,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1837265288, now seen corresponding path program 11 times [2020-11-07 04:49:07,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:49:07,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1807218043] [2020-11-07 04:49:07,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:49:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:49:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:49:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:07,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:07,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:49:07,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-07 04:49:07,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:07,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:07,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:07,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:49:07,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 04:49:07,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 04:49:07,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-11-07 04:49:07,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-11-07 04:49:07,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:07,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:07,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:07,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:07,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:07,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:49:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 04:49:07,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 04:49:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-11-07 04:49:07,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-11-07 04:49:07,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:07,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-11-07 04:49:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:08,087 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 335 proven. 939 refuted. 0 times theorem prover too weak. 1848 trivial. 0 not checked. [2020-11-07 04:49:08,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1807218043] [2020-11-07 04:49:08,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 04:49:08,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-11-07 04:49:08,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975655015] [2020-11-07 04:49:08,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-11-07 04:49:08,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:49:08,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-11-07 04:49:08,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2020-11-07 04:49:08,090 INFO L87 Difference]: Start difference. First operand 288 states and 429 transitions. Second operand 19 states. [2020-11-07 04:49:09,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:49:09,920 INFO L93 Difference]: Finished difference Result 553 states and 903 transitions. [2020-11-07 04:49:09,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-07 04:49:09,921 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 320 [2020-11-07 04:49:09,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:49:09,927 INFO L225 Difference]: With dead ends: 553 [2020-11-07 04:49:09,927 INFO L226 Difference]: Without dead ends: 291 [2020-11-07 04:49:09,934 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=300, Invalid=1340, Unknown=0, NotChecked=0, Total=1640 [2020-11-07 04:49:09,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-11-07 04:49:10,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 288. [2020-11-07 04:49:10,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-11-07 04:49:10,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 425 transitions. [2020-11-07 04:49:10,011 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 425 transitions. Word has length 320 [2020-11-07 04:49:10,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:49:10,011 INFO L481 AbstractCegarLoop]: Abstraction has 288 states and 425 transitions. [2020-11-07 04:49:10,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-11-07 04:49:10,012 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 425 transitions. [2020-11-07 04:49:10,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2020-11-07 04:49:10,021 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:49:10,021 INFO L422 BasicCegarLoop]: trace histogram [42, 42, 42, 23, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:49:10,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-07 04:49:10,021 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:49:10,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:49:10,022 INFO L82 PathProgramCache]: Analyzing trace with hash -261225010, now seen corresponding path program 12 times [2020-11-07 04:49:10,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:49:10,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [229222560] [2020-11-07 04:49:10,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:49:10,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:49:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:49:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:10,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:49:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-07 04:49:10,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:10,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:49:10,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 04:49:10,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 04:49:10,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 04:49:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:10,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:49:10,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 04:49:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 04:49:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-11-07 04:49:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-11-07 04:49:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2020-11-07 04:49:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:10,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:10,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:49:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 04:49:10,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 04:49:10,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-11-07 04:49:10,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-11-07 04:49:10,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-11-07 04:49:10,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:10,927 INFO L134 CoverageAnalysis]: Checked inductivity of 5840 backedges. 323 proven. 570 refuted. 0 times theorem prover too weak. 4947 trivial. 0 not checked. [2020-11-07 04:49:10,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [229222560] [2020-11-07 04:49:10,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 04:49:10,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-11-07 04:49:10,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838989314] [2020-11-07 04:49:10,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 04:49:10,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:49:10,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 04:49:10,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-07 04:49:10,929 INFO L87 Difference]: Start difference. First operand 288 states and 425 transitions. Second operand 9 states. [2020-11-07 04:49:11,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:49:11,555 INFO L93 Difference]: Finished difference Result 295 states and 431 transitions. [2020-11-07 04:49:11,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 04:49:11,561 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 425 [2020-11-07 04:49:11,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:49:11,566 INFO L225 Difference]: With dead ends: 295 [2020-11-07 04:49:11,576 INFO L226 Difference]: Without dead ends: 288 [2020-11-07 04:49:11,578 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2020-11-07 04:49:11,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-11-07 04:49:11,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 264. [2020-11-07 04:49:11,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-11-07 04:49:11,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 369 transitions. [2020-11-07 04:49:11,647 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 369 transitions. Word has length 425 [2020-11-07 04:49:11,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:49:11,647 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 369 transitions. [2020-11-07 04:49:11,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 04:49:11,647 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 369 transitions. [2020-11-07 04:49:11,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2020-11-07 04:49:11,651 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:49:11,651 INFO L422 BasicCegarLoop]: trace histogram [41, 41, 41, 23, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:49:11,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-07 04:49:11,651 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:49:11,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:49:11,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1933891612, now seen corresponding path program 13 times [2020-11-07 04:49:11,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:49:11,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1892106643] [2020-11-07 04:49:11,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:49:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:11,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:49:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:11,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:49:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:11,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:11,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:11,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:11,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:12,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:12,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:12,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:49:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-07 04:49:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:12,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:12,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:49:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 04:49:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 04:49:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 04:49:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:12,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:12,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:12,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:49:12,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 04:49:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 04:49:12,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-11-07 04:49:12,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2020-11-07 04:49:12,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:12,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:12,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:49:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 04:49:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 04:49:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-11-07 04:49:12,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-11-07 04:49:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-11-07 04:49:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:12,946 INFO L134 CoverageAnalysis]: Checked inductivity of 5518 backedges. 712 proven. 1674 refuted. 0 times theorem prover too weak. 3132 trivial. 0 not checked. [2020-11-07 04:49:12,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1892106643] [2020-11-07 04:49:12,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 04:49:12,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-11-07 04:49:12,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266400430] [2020-11-07 04:49:12,947 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-11-07 04:49:12,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:49:12,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-11-07 04:49:12,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2020-11-07 04:49:12,948 INFO L87 Difference]: Start difference. First operand 264 states and 369 transitions. Second operand 28 states. [2020-11-07 04:49:19,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:49:19,331 INFO L93 Difference]: Finished difference Result 538 states and 841 transitions. [2020-11-07 04:49:19,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-11-07 04:49:19,332 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 416 [2020-11-07 04:49:19,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:49:19,338 INFO L225 Difference]: With dead ends: 538 [2020-11-07 04:49:19,338 INFO L226 Difference]: Without dead ends: 280 [2020-11-07 04:49:19,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2167 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=1750, Invalid=7370, Unknown=0, NotChecked=0, Total=9120 [2020-11-07 04:49:19,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-11-07 04:49:19,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 256. [2020-11-07 04:49:19,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-11-07 04:49:19,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 341 transitions. [2020-11-07 04:49:19,422 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 341 transitions. Word has length 416 [2020-11-07 04:49:19,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:49:19,423 INFO L481 AbstractCegarLoop]: Abstraction has 256 states and 341 transitions. [2020-11-07 04:49:19,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-11-07 04:49:19,423 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 341 transitions. [2020-11-07 04:49:19,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2020-11-07 04:49:19,428 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:49:19,429 INFO L422 BasicCegarLoop]: trace histogram [43, 43, 43, 24, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:49:19,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-07 04:49:19,430 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:49:19,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:49:19,431 INFO L82 PathProgramCache]: Analyzing trace with hash 1814893477, now seen corresponding path program 14 times [2020-11-07 04:49:19,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:49:19,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [193585893] [2020-11-07 04:49:19,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:49:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:19,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:49:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:19,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:49:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:19,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:19,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:19,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:19,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:19,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:19,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:19,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:19,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:19,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:19,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:19,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:19,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:19,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:19,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:49:19,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:19,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-07 04:49:19,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:19,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:19,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:19,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:19,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:19,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:19,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:19,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:49:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:19,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 04:49:19,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:19,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 04:49:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:19,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 04:49:20,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:20,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:20,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:20,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:20,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:20,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:20,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:20,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:20,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:20,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:20,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:20,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:20,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:49:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:20,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 04:49:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:20,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 04:49:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:20,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-11-07 04:49:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:20,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-11-07 04:49:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:20,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2020-11-07 04:49:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:20,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:20,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:20,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:20,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:20,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:20,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:20,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:20,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:20,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 04:49:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:20,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 04:49:20,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:20,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 04:49:20,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:20,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 04:49:20,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:20,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-11-07 04:49:20,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:20,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-11-07 04:49:20,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:20,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-11-07 04:49:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:49:20,537 INFO L134 CoverageAnalysis]: Checked inductivity of 6093 backedges. 768 proven. 2006 refuted. 0 times theorem prover too weak. 3319 trivial. 0 not checked. [2020-11-07 04:49:20,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [193585893] [2020-11-07 04:49:20,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 04:49:20,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-11-07 04:49:20,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803462233] [2020-11-07 04:49:20,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-07 04:49:20,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:49:20,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-07 04:49:20,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-11-07 04:49:20,540 INFO L87 Difference]: Start difference. First operand 256 states and 341 transitions. Second operand 11 states. [2020-11-07 04:49:21,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:49:21,537 INFO L93 Difference]: Finished difference Result 480 states and 706 transitions. [2020-11-07 04:49:21,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-07 04:49:21,538 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 435 [2020-11-07 04:49:21,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:49:21,541 INFO L225 Difference]: With dead ends: 480 [2020-11-07 04:49:21,541 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 04:49:21,547 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2020-11-07 04:49:21,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 04:49:21,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 04:49:21,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 04:49:21,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 04:49:21,549 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 435 [2020-11-07 04:49:21,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:49:21,549 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 04:49:21,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-07 04:49:21,549 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 04:49:21,549 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 04:49:21,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-07 04:49:21,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 04:49:29,146 WARN L194 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 101 [2020-11-07 04:49:29,319 WARN L194 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 121 [2020-11-07 04:49:29,430 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 96 [2020-11-07 04:49:29,668 WARN L194 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 143 [2020-11-07 04:49:29,879 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 103 [2020-11-07 04:49:30,039 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 112 [2020-11-07 04:49:30,542 WARN L194 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 161 [2020-11-07 04:49:30,761 WARN L194 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 143 [2020-11-07 04:49:31,035 WARN L194 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 161 [2020-11-07 04:49:31,207 WARN L194 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 116 [2020-11-07 04:49:31,504 WARN L194 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 138 [2020-11-07 04:49:31,996 WARN L194 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 124 [2020-11-07 04:49:32,209 WARN L194 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 144 [2020-11-07 04:49:32,377 WARN L194 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 124 [2020-11-07 04:49:32,542 WARN L194 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 124 [2020-11-07 04:49:32,657 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 112 [2020-11-07 04:49:32,784 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 112 [2020-11-07 04:49:33,021 WARN L194 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 138 [2020-11-07 04:49:33,150 WARN L194 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 124 [2020-11-07 04:49:33,523 WARN L194 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 162 [2020-11-07 04:49:33,844 WARN L194 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 160 [2020-11-07 04:49:34,125 WARN L194 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 144 [2020-11-07 04:49:34,268 WARN L194 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 121 [2020-11-07 04:49:34,638 WARN L194 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 161 [2020-11-07 04:49:34,778 WARN L194 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 121 [2020-11-07 04:49:34,934 WARN L194 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 122 [2020-11-07 04:49:35,076 WARN L194 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 121 [2020-11-07 04:49:35,334 WARN L194 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 138 [2020-11-07 04:49:35,648 WARN L194 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 162 [2020-11-07 04:49:35,866 WARN L194 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 144 [2020-11-07 04:49:36,144 WARN L194 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 124 [2020-11-07 04:49:36,372 WARN L194 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 124 [2020-11-07 04:49:36,574 WARN L194 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 124 [2020-11-07 04:49:36,743 WARN L194 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 124 [2020-11-07 04:49:37,225 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 112 [2020-11-07 04:49:37,425 WARN L194 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 124 [2020-11-07 04:49:37,642 WARN L194 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 144 [2020-11-07 04:49:37,850 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 116 [2020-11-07 04:49:38,114 WARN L194 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 161 [2020-11-07 04:49:38,665 WARN L194 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 138 [2020-11-07 04:49:39,112 WARN L194 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 143 [2020-11-07 04:49:39,321 WARN L194 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 129 [2020-11-07 04:49:39,496 WARN L194 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 112 [2020-11-07 04:49:39,762 WARN L194 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 161 [2020-11-07 04:49:39,936 WARN L194 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 102 [2020-11-07 04:49:40,304 WARN L194 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 162 [2020-11-07 04:49:40,442 WARN L194 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 111 [2020-11-07 04:49:40,858 WARN L194 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 161 [2020-11-07 04:49:41,187 WARN L194 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 138 [2020-11-07 04:49:41,755 WARN L194 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 143 [2020-11-07 04:49:42,098 WARN L194 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 143 [2020-11-07 04:49:42,208 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 101 [2020-11-07 04:49:42,350 WARN L194 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 121 [2020-11-07 04:49:42,618 WARN L194 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 143 [2020-11-07 04:49:42,829 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 103 [2020-11-07 04:49:42,998 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 112 [2020-11-07 04:49:43,478 WARN L194 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 161 [2020-11-07 04:49:43,698 WARN L194 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 143 [2020-11-07 04:49:43,965 WARN L194 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 161 [2020-11-07 04:49:44,142 WARN L194 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 116 [2020-11-07 04:49:44,334 WARN L194 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 138 [2020-11-07 04:49:44,822 WARN L194 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 124 [2020-11-07 04:49:45,041 WARN L194 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 144 [2020-11-07 04:49:45,206 WARN L194 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 124 [2020-11-07 04:49:45,359 WARN L194 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 124 [2020-11-07 04:49:45,485 WARN L194 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 112 [2020-11-07 04:49:45,613 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 112 [2020-11-07 04:49:45,846 WARN L194 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 138 [2020-11-07 04:49:45,979 WARN L194 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 124 [2020-11-07 04:49:46,334 WARN L194 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 162 [2020-11-07 04:49:46,655 WARN L194 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 160 [2020-11-07 04:49:46,928 WARN L194 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 144 [2020-11-07 04:49:47,074 WARN L194 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 121 [2020-11-07 04:49:47,437 WARN L194 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 161 [2020-11-07 04:49:47,576 WARN L194 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 121 [2020-11-07 04:49:47,733 WARN L194 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 122 [2020-11-07 04:49:47,875 WARN L194 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 121 [2020-11-07 04:49:48,121 WARN L194 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 138 [2020-11-07 04:49:48,438 WARN L194 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 162 [2020-11-07 04:49:48,655 WARN L194 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 144 [2020-11-07 04:49:48,936 WARN L194 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 124 [2020-11-07 04:49:49,163 WARN L194 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 124 [2020-11-07 04:49:49,364 WARN L194 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 124 [2020-11-07 04:49:49,536 WARN L194 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 124 [2020-11-07 04:49:50,011 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 112 [2020-11-07 04:49:50,209 WARN L194 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 124 [2020-11-07 04:49:50,430 WARN L194 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 144 [2020-11-07 04:49:50,653 WARN L194 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 116 [2020-11-07 04:49:50,917 WARN L194 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 161 [2020-11-07 04:49:51,465 WARN L194 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 138 [2020-11-07 04:49:51,916 WARN L194 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 143 [2020-11-07 04:49:52,126 WARN L194 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 129 [2020-11-07 04:49:52,299 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 112 [2020-11-07 04:49:52,563 WARN L194 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 161 [2020-11-07 04:49:52,737 WARN L194 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 102 [2020-11-07 04:49:53,096 WARN L194 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 162 [2020-11-07 04:49:53,233 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 111 [2020-11-07 04:49:53,655 WARN L194 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 161 [2020-11-07 04:49:53,987 WARN L194 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 138 [2020-11-07 04:49:54,548 WARN L194 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 143 [2020-11-07 04:49:54,900 WARN L194 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 143 [2020-11-07 04:49:55,107 WARN L194 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 141 [2020-11-07 04:49:55,316 WARN L194 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 140 [2020-11-07 04:49:55,647 WARN L194 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 167 [2020-11-07 04:49:55,765 WARN L194 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 117 [2020-11-07 04:49:55,989 WARN L194 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 144 [2020-11-07 04:49:56,181 WARN L194 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 130 [2020-11-07 04:49:56,732 WARN L194 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 180 [2020-11-07 04:49:57,075 WARN L194 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 172 [2020-11-07 04:49:57,398 WARN L194 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 180 [2020-11-07 04:49:57,593 WARN L194 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 124 [2020-11-07 04:49:57,869 WARN L194 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 152 [2020-11-07 04:49:58,459 WARN L194 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 145 [2020-11-07 04:49:58,812 WARN L194 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 187 [2020-11-07 04:49:59,052 WARN L194 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 145 [2020-11-07 04:49:59,276 WARN L194 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 145 [2020-11-07 04:49:59,423 WARN L194 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 130 [2020-11-07 04:49:59,584 WARN L194 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 130 [2020-11-07 04:49:59,912 WARN L194 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 152 [2020-11-07 04:50:00,105 WARN L194 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 152 [2020-11-07 04:50:00,525 WARN L194 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 182 [2020-11-07 04:50:01,089 WARN L194 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 321 DAG size of output: 225 [2020-11-07 04:50:01,495 WARN L194 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 187 [2020-11-07 04:50:01,704 WARN L194 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 140 [2020-11-07 04:50:02,131 WARN L194 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 180 [2020-11-07 04:50:02,337 WARN L194 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 140 [2020-11-07 04:50:02,630 WARN L194 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 178 [2020-11-07 04:50:02,850 WARN L194 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 140 [2020-11-07 04:50:03,184 WARN L194 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 152 [2020-11-07 04:50:03,556 WARN L194 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 182 [2020-11-07 04:50:03,910 WARN L194 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 187 [2020-11-07 04:50:04,293 WARN L194 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 145 [2020-11-07 04:50:04,620 WARN L194 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 154 [2020-11-07 04:50:04,909 WARN L194 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 154 [2020-11-07 04:50:05,164 WARN L194 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 154 [2020-11-07 04:50:05,594 WARN L194 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 125 [2020-11-07 04:50:05,739 WARN L194 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 130 [2020-11-07 04:50:06,037 WARN L194 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 154 [2020-11-07 04:50:06,388 WARN L194 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 187 [2020-11-07 04:50:06,624 WARN L194 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 123 [2020-11-07 04:50:06,943 WARN L194 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 180 [2020-11-07 04:50:07,629 WARN L194 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 152 [2020-11-07 04:50:07,804 WARN L194 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 114 [2020-11-07 04:50:08,178 WARN L194 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 167 [2020-11-07 04:50:08,552 WARN L194 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 174 [2020-11-07 04:50:08,768 WARN L194 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 130 [2020-11-07 04:50:09,087 WARN L194 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 180 [2020-11-07 04:50:09,488 WARN L194 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 114 [2020-11-07 04:50:09,893 WARN L194 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 182 [2020-11-07 04:50:10,148 WARN L194 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 144 [2020-11-07 04:50:10,631 WARN L194 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 180 [2020-11-07 04:50:11,070 WARN L194 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 152 [2020-11-07 04:50:11,776 WARN L194 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 172 [2020-11-07 04:50:12,191 WARN L194 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 167 [2020-11-07 04:50:12,403 WARN L194 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 141 [2020-11-07 04:50:12,607 WARN L194 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 140 [2020-11-07 04:50:12,942 WARN L194 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 167 [2020-11-07 04:50:13,057 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 117 [2020-11-07 04:50:13,280 WARN L194 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 144 [2020-11-07 04:50:13,468 WARN L194 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 130 [2020-11-07 04:50:14,020 WARN L194 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 180 [2020-11-07 04:50:14,358 WARN L194 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 172 [2020-11-07 04:50:14,675 WARN L194 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 180 [2020-11-07 04:50:14,868 WARN L194 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 124 [2020-11-07 04:50:15,150 WARN L194 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 152 [2020-11-07 04:50:15,740 WARN L194 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 145 [2020-11-07 04:50:16,090 WARN L194 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 187 [2020-11-07 04:50:16,341 WARN L194 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 145 [2020-11-07 04:50:16,570 WARN L194 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 145 [2020-11-07 04:50:16,716 WARN L194 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 130 [2020-11-07 04:50:16,875 WARN L194 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 130 [2020-11-07 04:50:17,203 WARN L194 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 152 [2020-11-07 04:50:17,398 WARN L194 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 152 [2020-11-07 04:50:17,814 WARN L194 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 182 [2020-11-07 04:50:18,373 WARN L194 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 321 DAG size of output: 225 [2020-11-07 04:50:18,787 WARN L194 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 187 [2020-11-07 04:50:18,992 WARN L194 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 140 [2020-11-07 04:50:19,423 WARN L194 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 180 [2020-11-07 04:50:19,626 WARN L194 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 140 [2020-11-07 04:50:19,907 WARN L194 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 178 [2020-11-07 04:50:20,113 WARN L194 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 140 [2020-11-07 04:50:20,447 WARN L194 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 152 [2020-11-07 04:50:20,829 WARN L194 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 182 [2020-11-07 04:50:21,189 WARN L194 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 187 [2020-11-07 04:50:21,569 WARN L194 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 145 [2020-11-07 04:50:21,892 WARN L194 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 154 [2020-11-07 04:50:22,185 WARN L194 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 154 [2020-11-07 04:50:22,443 WARN L194 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 154 [2020-11-07 04:50:22,874 WARN L194 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 125 [2020-11-07 04:50:23,021 WARN L194 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 130 [2020-11-07 04:50:23,308 WARN L194 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 154 [2020-11-07 04:50:23,660 WARN L194 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 187 [2020-11-07 04:50:23,900 WARN L194 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 123 [2020-11-07 04:50:24,235 WARN L194 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 180 [2020-11-07 04:50:24,910 WARN L194 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 152 [2020-11-07 04:50:25,081 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 114 [2020-11-07 04:50:25,456 WARN L194 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 167 [2020-11-07 04:50:25,839 WARN L194 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 174 [2020-11-07 04:50:26,052 WARN L194 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 130 [2020-11-07 04:50:26,371 WARN L194 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 180 [2020-11-07 04:50:26,769 WARN L194 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 114 [2020-11-07 04:50:27,176 WARN L194 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 182 [2020-11-07 04:50:27,434 WARN L194 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 144 [2020-11-07 04:50:27,924 WARN L194 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 180 [2020-11-07 04:50:28,349 WARN L194 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 152 [2020-11-07 04:50:29,062 WARN L194 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 172 [2020-11-07 04:50:29,482 WARN L194 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 167 [2020-11-07 04:50:29,729 WARN L194 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 143 [2020-11-07 04:50:30,092 WARN L194 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 155 [2020-11-07 04:50:30,317 WARN L194 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 155 [2020-11-07 04:50:30,973 WARN L194 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 154 [2020-11-07 04:50:31,176 WARN L194 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 156 [2020-11-07 04:50:31,469 WARN L194 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 155 [2020-11-07 04:50:31,837 WARN L194 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 154 [2020-11-07 04:50:32,561 WARN L194 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 155 [2020-11-07 04:50:32,894 WARN L194 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 143 [2020-11-07 04:50:33,044 WARN L194 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 138 [2020-11-07 04:50:33,246 WARN L194 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 155 [2020-11-07 04:50:33,429 WARN L194 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 133 [2020-11-07 04:50:33,625 WARN L194 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 154 [2020-11-07 04:50:33,915 WARN L194 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 155 [2020-11-07 04:50:34,317 WARN L194 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 143 [2020-11-07 04:50:40,375 WARN L194 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 12 [2020-11-07 04:50:40,940 WARN L194 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 27 [2020-11-07 04:50:41,490 WARN L194 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 27 [2020-11-07 04:50:41,666 WARN L194 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 1 [2020-11-07 04:50:42,438 WARN L194 SmtUtils]: Spent 763.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 38 [2020-11-07 04:50:42,773 WARN L194 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 10 [2020-11-07 04:50:42,900 WARN L194 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 18 [2020-11-07 04:50:43,223 WARN L194 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 7 [2020-11-07 04:50:43,340 WARN L194 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 14 [2020-11-07 04:50:43,456 WARN L194 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 14 [2020-11-07 04:50:47,463 WARN L194 SmtUtils]: Spent 4.00 s on a formula simplification. DAG size of input: 230 DAG size of output: 75 [2020-11-07 04:50:47,772 WARN L194 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 10 [2020-11-07 04:50:53,225 WARN L194 SmtUtils]: Spent 5.43 s on a formula simplification. DAG size of input: 405 DAG size of output: 63 [2020-11-07 04:50:58,629 WARN L194 SmtUtils]: Spent 5.38 s on a formula simplification. DAG size of input: 405 DAG size of output: 63 [2020-11-07 04:51:06,008 WARN L194 SmtUtils]: Spent 7.36 s on a formula simplification. DAG size of input: 542 DAG size of output: 83 [2020-11-07 04:51:13,436 WARN L194 SmtUtils]: Spent 7.41 s on a formula simplification. DAG size of input: 542 DAG size of output: 83 [2020-11-07 04:51:18,792 WARN L194 SmtUtils]: Spent 5.34 s on a formula simplification. DAG size of input: 355 DAG size of output: 90 [2020-11-07 04:51:19,030 WARN L194 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 3 [2020-11-07 04:51:19,153 WARN L194 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 15 [2020-11-07 04:51:19,462 WARN L194 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 9 [2020-11-07 04:51:23,145 WARN L194 SmtUtils]: Spent 3.67 s on a formula simplification. DAG size of input: 217 DAG size of output: 73 [2020-11-07 04:51:27,207 WARN L194 SmtUtils]: Spent 4.05 s on a formula simplification. DAG size of input: 230 DAG size of output: 75 [2020-11-07 04:51:27,215 INFO L269 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: true [2020-11-07 04:51:27,215 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-11-07 04:51:27,215 INFO L269 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: true [2020-11-07 04:51:27,215 INFO L269 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: true [2020-11-07 04:51:27,215 INFO L269 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: true [2020-11-07 04:51:27,215 INFO L269 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: true [2020-11-07 04:51:27,216 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 04:51:27,216 INFO L269 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: true [2020-11-07 04:51:27,216 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-11-07 04:51:27,216 INFO L269 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2020-11-07 04:51:27,218 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-11-07 04:51:27,218 INFO L269 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: true [2020-11-07 04:51:27,218 INFO L269 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: true [2020-11-07 04:51:27,219 INFO L269 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-11-07 04:51:27,219 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-11-07 04:51:27,219 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 04:51:27,219 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-07 04:51:27,219 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-11-07 04:51:27,219 INFO L269 CegarLoopResult]: At program point L29(lines 29 33) the Hoare annotation is: true [2020-11-07 04:51:27,219 INFO L269 CegarLoopResult]: At program point mainEXIT(lines 27 47) the Hoare annotation is: true [2020-11-07 04:51:27,219 INFO L269 CegarLoopResult]: At program point mainFINAL(lines 27 47) the Hoare annotation is: true [2020-11-07 04:51:27,220 INFO L262 CegarLoopResult]: At program point L42(lines 42 46) the Hoare annotation is: (or (<= 3 main_~m~0) (and (< 6 main_~result~0) (<= main_~result~0 7)) (<= main_~m~0 1) (<= 3 main_~n~0) (<= main_~n~0 1)) [2020-11-07 04:51:27,220 INFO L269 CegarLoopResult]: At program point L34(line 34) the Hoare annotation is: true [2020-11-07 04:51:27,220 INFO L269 CegarLoopResult]: At program point L34-1(line 34) the Hoare annotation is: true [2020-11-07 04:51:27,220 INFO L269 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: true [2020-11-07 04:51:27,220 INFO L269 CegarLoopResult]: At program point L34-2(line 34) the Hoare annotation is: true [2020-11-07 04:51:27,220 INFO L269 CegarLoopResult]: At program point mainENTRY(lines 27 47) the Hoare annotation is: true [2020-11-07 04:51:27,220 INFO L269 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: true [2020-11-07 04:51:27,220 INFO L269 CegarLoopResult]: At program point L28-1(line 28) the Hoare annotation is: true [2020-11-07 04:51:27,223 INFO L262 CegarLoopResult]: At program point L45(line 45) the Hoare annotation is: false [2020-11-07 04:51:27,223 INFO L262 CegarLoopResult]: At program point L45-1(line 45) the Hoare annotation is: false [2020-11-07 04:51:27,223 INFO L269 CegarLoopResult]: At program point L43(line 43) the Hoare annotation is: true [2020-11-07 04:51:27,223 INFO L269 CegarLoopResult]: At program point L41(line 41) the Hoare annotation is: true [2020-11-07 04:51:27,224 INFO L262 CegarLoopResult]: At program point L41-1(line 41) the Hoare annotation is: (or (<= 3 main_~m~0) (and (<= 7 |main_#t~ret12|) (<= |main_#t~ret12| 7)) (<= main_~m~0 1) (<= 3 main_~n~0) (<= main_~n~0 1)) [2020-11-07 04:51:27,224 INFO L269 CegarLoopResult]: At program point L39(line 39) the Hoare annotation is: true [2020-11-07 04:51:27,224 INFO L262 CegarLoopResult]: At program point L41-2(line 41) the Hoare annotation is: (or (<= 3 main_~m~0) (and (<= 7 |main_#t~ret12|) (<= |main_#t~ret12| 7)) (<= main_~m~0 1) (<= 3 main_~n~0) (<= main_~n~0 1)) [2020-11-07 04:51:27,224 INFO L262 CegarLoopResult]: At program point L41-3(line 41) the Hoare annotation is: (or (<= 3 main_~m~0) (and (<= 7 |main_#t~ret12|) (<= |main_#t~ret12| 7) (< 6 main_~result~0) (<= main_~result~0 7)) (<= main_~m~0 1) (<= 3 main_~n~0) (<= main_~n~0 1)) [2020-11-07 04:51:27,224 INFO L269 CegarLoopResult]: At program point L35(lines 35 40) the Hoare annotation is: true [2020-11-07 04:51:27,225 INFO L262 CegarLoopResult]: At program point ackermannEXIT(lines 16 24) the Hoare annotation is: (let ((.cse1 (<= 7 |ackermann_#res|)) (.cse2 (<= |ackermann_#res| 7)) (.cse6 (<= 3 |ackermann_#in~n|)) (.cse5 (<= |ackermann_#res| 5)) (.cse8 (<= 3 ackermann_~m)) (.cse4 (<= 5 |ackermann_#res|)) (.cse3 (<= |ackermann_#in~m| 1)) (.cse7 (<= 1 |ackermann_#in~m|)) (.cse13 (= |ackermann_#in~n| 0)) (.cse10 (<= 1 |ackermann_#in~n|)) (.cse14 (<= 3 |ackermann_#res|)) (.cse15 (<= |ackermann_#res| 3)) (.cse0 (<= |ackermann_#in~n| 1)) (.cse9 (<= 2 |ackermann_#in~m|)) (.cse16 (= |ackermann_#in~m| 0))) (and (or .cse0 (and .cse1 .cse2 (<= 5 |ackermann_#in~n|)) (not .cse3) (and (<= 6 |ackermann_#in~n|) .cse4) (and (<= |ackermann_#res| 6) (<= 4 |ackermann_#in~n|) (<= 6 |ackermann_#res|) (<= |ackermann_#in~n| 4)) (and (<= 4 |ackermann_#res|) (<= |ackermann_#in~n| 2) (<= |ackermann_#res| 4)) (and (<= |ackermann_#in~n| 3) .cse5 .cse6 .cse4) (not .cse7)) (or .cse8 .cse0 (and .cse1 .cse2) (not .cse9) .cse6) (let ((.cse11 (= ackermann_~n |ackermann_#in~n|)) (.cse12 (= ackermann_~m |ackermann_#in~m|))) (or (and .cse0 .cse10 .cse5 .cse4 .cse11 .cse12) (and .cse8 .cse13 .cse4 .cse11 .cse12) (and .cse13 (<= |ackermann_#in~m| 2) .cse14 .cse11 .cse12 .cse15) (and .cse8 .cse10 .cse4 .cse11 .cse12) (and (<= 2 |ackermann_#in~n|) .cse4 .cse11 .cse12 .cse9) (and .cse3 .cse11 .cse7 .cse12) (and .cse11 .cse12 .cse16))) (or (and (<= 2 |ackermann_#res|) .cse13 (<= |ackermann_#res| 2)) (and .cse10 .cse14 .cse15) (not .cse0) .cse9 .cse16) (or (let ((.cse17 (+ |ackermann_#in~n| 1))) (and (<= .cse17 |ackermann_#res|) (<= |ackermann_#res| .cse17))) (not .cse16)))) [2020-11-07 04:51:27,225 INFO L262 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|) (not (= |ackermann_#in~m| 0))) [2020-11-07 04:51:27,225 INFO L262 CegarLoopResult]: At program point L23-1(line 23) the Hoare annotation is: (let ((.cse10 (<= 1 |ackermann_#in~m|)) (.cse2 (<= |ackermann_#in~m| 1))) (let ((.cse0 (<= |ackermann_#t~ret8| 3)) (.cse1 (<= 3 |ackermann_#t~ret8|)) (.cse6 (not .cse2)) (.cse7 (not .cse10)) (.cse4 (<= 3 ackermann_~m)) (.cse9 (<= |ackermann_#t~ret8| 5)) (.cse8 (<= 3 |ackermann_#in~n|)) (.cse3 (<= |ackermann_#in~n| 1)) (.cse5 (<= 5 |ackermann_#t~ret8|))) (and (or (and .cse0 (<= |ackermann_#in~m| 2) .cse1) .cse2 (not .cse3) (and .cse4 .cse5)) (or (and (<= |ackermann_#t~ret8| 2) (<= 2 |ackermann_#t~ret8|)) .cse6 (<= 4 |ackermann_#in~n|) (and .cse0 (<= 2 |ackermann_#in~n|)) .cse7 (and (<= |ackermann_#t~ret8| 4) .cse8)) (<= 1 |ackermann_#in~n|) (or (= |ackermann_#in~n| 1) (and (<= |ackermann_#in~n| 2) .cse1) .cse6 (and (<= 6 |ackermann_#in~n|) .cse5) (and (<= |ackermann_#in~n| 3) (<= 4 |ackermann_#t~ret8|)) (and (<= 6 |ackermann_#t~ret8|) (<= 5 |ackermann_#in~n|) (<= |ackermann_#t~ret8| 6)) (and .cse9 .cse5 (<= |ackermann_#in~n| 4)) .cse7) (or .cse4 .cse9 .cse8) (or .cse3 (not (<= 2 |ackermann_#in~m|)) .cse5) (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|) .cse10))) [2020-11-07 04:51:27,225 INFO L269 CegarLoopResult]: At program point ackermannENTRY(lines 16 24) the Hoare annotation is: true [2020-11-07 04:51:27,225 INFO L262 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (and (= |ackermann_#in~n| 0) (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|) (not (= |ackermann_#in~m| 0))) [2020-11-07 04:51:27,226 INFO L262 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: (let ((.cse10 (<= 1 |ackermann_#in~m|)) (.cse2 (<= |ackermann_#in~m| 1))) (let ((.cse0 (<= |ackermann_#t~ret8| 3)) (.cse1 (<= 3 |ackermann_#t~ret8|)) (.cse6 (not .cse2)) (.cse7 (not .cse10)) (.cse4 (<= 3 ackermann_~m)) (.cse9 (<= |ackermann_#t~ret8| 5)) (.cse8 (<= 3 |ackermann_#in~n|)) (.cse3 (<= |ackermann_#in~n| 1)) (.cse5 (<= 5 |ackermann_#t~ret8|))) (and (or (and .cse0 (<= |ackermann_#in~m| 2) .cse1) .cse2 (not .cse3) (and .cse4 .cse5)) (or (and (<= |ackermann_#t~ret8| 2) (<= 2 |ackermann_#t~ret8|)) .cse6 (<= 4 |ackermann_#in~n|) (and .cse0 (<= 2 |ackermann_#in~n|)) .cse7 (and (<= |ackermann_#t~ret8| 4) .cse8)) (<= 1 |ackermann_#in~n|) (or (= |ackermann_#in~n| 1) (and (<= |ackermann_#in~n| 2) .cse1) .cse6 (and (<= 6 |ackermann_#in~n|) .cse5) (and (<= |ackermann_#in~n| 3) (<= 4 |ackermann_#t~ret8|)) (and (<= 6 |ackermann_#t~ret8|) (<= 5 |ackermann_#in~n|) (<= |ackermann_#t~ret8| 6)) (and .cse9 .cse5 (<= |ackermann_#in~n| 4)) .cse7) (or .cse4 .cse9 .cse8) (or .cse3 (not (<= 2 |ackermann_#in~m|)) .cse5) (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|) .cse10))) [2020-11-07 04:51:27,226 INFO L262 CegarLoopResult]: At program point L20(lines 20 22) the Hoare annotation is: (and (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|) (not (= |ackermann_#in~m| 0))) [2020-11-07 04:51:27,226 INFO L262 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: (let ((.cse0 (= |ackermann_#in~n| 0)) (.cse1 (= ackermann_~n |ackermann_#in~n|)) (.cse2 (= ackermann_~m |ackermann_#in~m|))) (or (and (<= 3 ackermann_~m) .cse0 .cse1 (<= 5 |ackermann_#t~ret7|) .cse2) (and (<= |ackermann_#in~m| 1) .cse0 .cse1 (<= 2 |ackermann_#t~ret7|) (<= 1 |ackermann_#in~m|) .cse2 (<= |ackermann_#t~ret7| 2)) (and .cse0 (<= |ackermann_#in~m| 2) .cse1 .cse2 (<= 2 |ackermann_#in~m|) (<= |ackermann_#t~ret7| 3) (<= 3 |ackermann_#t~ret7|)))) [2020-11-07 04:51:27,226 INFO L262 CegarLoopResult]: At program point L23-3(line 23) the Hoare annotation is: (let ((.cse0 (<= |ackermann_#in~m| 1)) (.cse6 (<= 3 |ackermann_#t~ret8|)) (.cse8 (= ackermann_~n |ackermann_#in~n|)) (.cse7 (= ackermann_~m |ackermann_#in~m|)) (.cse2 (<= |ackermann_#in~n| 1)) (.cse9 (<= 3 ackermann_~m)) (.cse1 (<= 3 |ackermann_#in~n|)) (.cse4 (<= |ackermann_#t~ret9| 5)) (.cse3 (<= 5 |ackermann_#t~ret9|)) (.cse10 (<= 5 |ackermann_#t~ret8|)) (.cse11 (<= 2 |ackermann_#in~m|)) (.cse12 (<= 7 |ackermann_#t~ret9|)) (.cse13 (<= |ackermann_#t~ret9| 7))) (and (or (not .cse0) .cse1 (and (<= |ackermann_#t~ret8| 3) (<= |ackermann_#t~ret9| 4))) (or .cse2 (<= 4 |ackermann_#t~ret9|)) (let ((.cse5 (<= 1 |ackermann_#in~n|))) (or (and .cse3 .cse4 .cse5 (<= |ackermann_#in~m| 2) .cse6 .cse7 .cse8) (not .cse2) (and .cse9 .cse3 .cse5 .cse7 .cse8 .cse10) (and (<= |ackermann_#t~ret8| 2) .cse0 (<= 2 |ackermann_#t~ret8|) (<= 3 |ackermann_#t~ret9|) (<= |ackermann_#t~ret9| 3) .cse8 .cse7))) (or (= |ackermann_#in~n| 1) (and .cse6 .cse8 .cse7)) (or .cse2 (and .cse9 .cse3 .cse10) (not .cse11) (and .cse12 .cse10 .cse13) (and .cse3 .cse1 .cse10)) (let ((.cse14 (<= 1 |ackermann_#in~m|))) (or (and .cse3 .cse4 (<= |ackermann_#in~n| 3) (<= |ackermann_#t~ret8| 4) (<= 4 |ackermann_#t~ret8|) .cse14) (and (<= 4 |ackermann_#in~n|) (<= |ackermann_#t~ret9| 6) (<= |ackermann_#t~ret8| 5) (<= 6 |ackermann_#t~ret9|) .cse10 .cse14 (<= |ackermann_#in~n| 4)) (and (<= 6 |ackermann_#in~n|) .cse3 .cse10 .cse14) (and (<= |ackermann_#in~n| 2) .cse14) .cse11 (and (<= 6 |ackermann_#t~ret8|) (<= 5 |ackermann_#in~n|) (<= |ackermann_#t~ret8| 6) .cse12 .cse14 .cse13))))) [2020-11-07 04:51:27,227 INFO L262 CegarLoopResult]: At program point L21-2(line 21) the Hoare annotation is: (let ((.cse0 (= |ackermann_#in~n| 0)) (.cse1 (= ackermann_~n |ackermann_#in~n|)) (.cse2 (= ackermann_~m |ackermann_#in~m|))) (or (and (<= 3 ackermann_~m) .cse0 .cse1 (<= 5 |ackermann_#t~ret7|) .cse2) (and (<= |ackermann_#in~m| 1) .cse0 .cse1 (<= 2 |ackermann_#t~ret7|) (<= 1 |ackermann_#in~m|) .cse2 (<= |ackermann_#t~ret7| 2)) (and .cse0 (<= |ackermann_#in~m| 2) .cse1 .cse2 (<= 2 |ackermann_#in~m|) (<= |ackermann_#t~ret7| 3) (<= 3 |ackermann_#t~ret7|)))) [2020-11-07 04:51:27,227 INFO L262 CegarLoopResult]: At program point L23-4(line 23) the Hoare annotation is: (let ((.cse0 (<= |ackermann_#in~m| 1)) (.cse6 (<= 3 |ackermann_#t~ret8|)) (.cse8 (= ackermann_~n |ackermann_#in~n|)) (.cse7 (= ackermann_~m |ackermann_#in~m|)) (.cse2 (<= |ackermann_#in~n| 1)) (.cse9 (<= 3 ackermann_~m)) (.cse1 (<= 3 |ackermann_#in~n|)) (.cse4 (<= |ackermann_#t~ret9| 5)) (.cse3 (<= 5 |ackermann_#t~ret9|)) (.cse10 (<= 5 |ackermann_#t~ret8|)) (.cse11 (<= 2 |ackermann_#in~m|)) (.cse12 (<= 7 |ackermann_#t~ret9|)) (.cse13 (<= |ackermann_#t~ret9| 7))) (and (or (not .cse0) .cse1 (and (<= |ackermann_#t~ret8| 3) (<= |ackermann_#t~ret9| 4))) (or .cse2 (<= 4 |ackermann_#t~ret9|)) (let ((.cse5 (<= 1 |ackermann_#in~n|))) (or (and .cse3 .cse4 .cse5 (<= |ackermann_#in~m| 2) .cse6 .cse7 .cse8) (not .cse2) (and .cse9 .cse3 .cse5 .cse7 .cse8 .cse10) (and (<= |ackermann_#t~ret8| 2) .cse0 (<= 2 |ackermann_#t~ret8|) (<= 3 |ackermann_#t~ret9|) (<= |ackermann_#t~ret9| 3) .cse8 .cse7))) (or (= |ackermann_#in~n| 1) (and .cse6 .cse8 .cse7)) (or .cse2 (and .cse9 .cse3 .cse10) (not .cse11) (and .cse12 .cse10 .cse13) (and .cse3 .cse1 .cse10)) (let ((.cse14 (<= 1 |ackermann_#in~m|))) (or (and .cse3 .cse4 (<= |ackermann_#in~n| 3) (<= |ackermann_#t~ret8| 4) (<= 4 |ackermann_#t~ret8|) .cse14) (and (<= 4 |ackermann_#in~n|) (<= |ackermann_#t~ret9| 6) (<= |ackermann_#t~ret8| 5) (<= 6 |ackermann_#t~ret9|) .cse10 .cse14 (<= |ackermann_#in~n| 4)) (and (<= 6 |ackermann_#in~n|) .cse3 .cse10 .cse14) (and (<= |ackermann_#in~n| 2) .cse14) .cse11 (and (<= 6 |ackermann_#t~ret8|) (<= 5 |ackermann_#in~n|) (<= |ackermann_#t~ret8| 6) .cse12 .cse14 .cse13))))) [2020-11-07 04:51:27,227 INFO L262 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (and (= ackermann_~m |ackermann_#in~m|) (= ackermann_~n |ackermann_#in~n|) (= |ackermann_#in~m| 0)) [2020-11-07 04:51:27,228 INFO L262 CegarLoopResult]: At program point L21-3(line 21) the Hoare annotation is: (and (<= 2 |ackermann_#res|) (let ((.cse0 (= |ackermann_#in~n| 0)) (.cse1 (= ackermann_~n |ackermann_#in~n|)) (.cse2 (= ackermann_~m |ackermann_#in~m|))) (or (and .cse0 (<= 5 |ackermann_#res|) .cse1 (<= 5 |ackermann_#t~ret7|) .cse2) (and (<= |ackermann_#in~m| 1) .cse0 .cse1 (<= 1 |ackermann_#in~m|) .cse2) (and .cse0 (<= |ackermann_#in~m| 2) (<= 3 |ackermann_#res|) .cse1 .cse2 (<= |ackermann_#t~ret7| 3) (<= 3 |ackermann_#t~ret7|)))) (or (<= 3 ackermann_~m) (and (<= |ackermann_#res| 2) (<= |ackermann_#t~ret7| 2)) (and (<= 2 |ackermann_#in~m|) (<= |ackermann_#res| 3))) (<= 2 |ackermann_#t~ret7|)) [2020-11-07 04:51:27,228 INFO L262 CegarLoopResult]: At program point L23-5(line 23) the Hoare annotation is: (let ((.cse3 (<= |ackermann_#t~ret9| 5)) (.cse4 (<= |ackermann_#res| 5)) (.cse0 (<= |ackermann_#in~n| 1)) (.cse19 (<= 7 |ackermann_#res|)) (.cse20 (<= |ackermann_#res| 7)) (.cse21 (<= 7 |ackermann_#t~ret9|)) (.cse22 (<= |ackermann_#t~ret9| 7)) (.cse7 (<= 5 |ackermann_#t~ret9|)) (.cse1 (<= |ackermann_#in~m| 1)) (.cse8 (<= 5 |ackermann_#res|)) (.cse9 (<= 5 |ackermann_#t~ret8|)) (.cse10 (= ackermann_~n |ackermann_#in~n|)) (.cse13 (<= 1 |ackermann_#in~m|)) (.cse11 (= ackermann_~m |ackermann_#in~m|))) (let ((.cse2 (and (<= 6 |ackermann_#in~n|) .cse7 .cse1 .cse8 .cse9 .cse10 .cse13 .cse11)) (.cse6 (and .cse1 .cse19 (<= 6 |ackermann_#t~ret8|) (<= 5 |ackermann_#in~n|) .cse20 (<= |ackermann_#t~ret8| 6) .cse21 .cse13 .cse11 .cse10 .cse22)) (.cse14 (<= 3 |ackermann_#t~ret8|)) (.cse16 (not .cse0)) (.cse17 (<= 3 ackermann_~m)) (.cse12 (<= 2 |ackermann_#in~m|)) (.cse5 (<= 3 |ackermann_#in~n|)) (.cse18 (and .cse0 .cse3 .cse4 (<= |ackermann_#in~m| 2) .cse8))) (and (or .cse0 (not .cse1) (and (<= |ackermann_#res| 6) (<= 4 |ackermann_#in~n|) (<= |ackermann_#t~ret9| 6) (<= |ackermann_#t~ret8| 5) (<= 6 |ackermann_#t~ret9|) (<= 6 |ackermann_#res|)) .cse2 (and .cse3 .cse4 (<= |ackermann_#t~ret8| 4) .cse5) .cse6 (and (<= 4 |ackermann_#res|) (<= |ackermann_#t~ret8| 3) (<= |ackermann_#t~ret9| 4) (<= 4 |ackermann_#t~ret9|) (<= |ackermann_#res| 4))) (or .cse0 .cse1 (and .cse7 .cse8 .cse9)) (or (and .cse10 .cse11 .cse12) .cse0 (and .cse9 .cse10 .cse13 .cse11 (<= |ackermann_#in~n| 4)) (and .cse7 (<= |ackermann_#in~n| 3) (<= 4 |ackermann_#t~ret8|) .cse8 .cse10 .cse13 .cse11) (and (<= |ackermann_#in~n| 2) .cse14 .cse10 .cse13 .cse11) .cse2 .cse6) (let ((.cse15 (<= 1 |ackermann_#in~n|))) (or (and (<= |ackermann_#t~ret8| 2) .cse15 (<= 2 |ackermann_#t~ret8|) (<= |ackermann_#t~ret9| 3) (<= 3 |ackermann_#t~ret9|) .cse10 (<= 3 |ackermann_#res|) .cse13 .cse11 (<= |ackermann_#res| 3)) .cse16 (and .cse7 .cse15 .cse14 .cse8 .cse11 .cse10 .cse12))) (or .cse1 .cse16 (and .cse17 .cse9) .cse18) (or .cse17 (not .cse12) (and .cse19 .cse20 .cse21 .cse22) .cse5 .cse18)))) [2020-11-07 04:51:27,229 INFO L262 CegarLoopResult]: At program point L17(lines 17 19) the Hoare annotation is: (and (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|)) [2020-11-07 04:51:27,230 INFO L262 CegarLoopResult]: At program point L23-6(line 23) the Hoare annotation is: (let ((.cse17 (<= 1 |ackermann_#in~m|)) (.cse16 (<= |ackermann_#in~m| 1))) (let ((.cse1 (<= 2 |ackermann_#in~n|)) (.cse0 (not .cse16)) (.cse9 (<= |ackermann_#t~ret9| 5)) (.cse10 (<= |ackermann_#res| 5)) (.cse4 (<= 5 |ackermann_#res|)) (.cse5 (= ackermann_~n |ackermann_#in~n|)) (.cse6 (= ackermann_~m |ackermann_#in~m|)) (.cse3 (not .cse17)) (.cse7 (<= 3 ackermann_~m)) (.cse11 (<= 7 |ackermann_#res|)) (.cse12 (<= |ackermann_#res| 7)) (.cse13 (<= 7 |ackermann_#t~ret9|)) (.cse14 (<= |ackermann_#t~ret9| 7)) (.cse2 (<= 3 |ackermann_#in~n|)) (.cse15 (<= |ackermann_#in~n| 1))) (and (or .cse0 (and (<= |ackermann_#t~ret9| 4) .cse1) (and (<= |ackermann_#t~ret9| 3) (<= |ackermann_#res| 3)) .cse2 .cse3) (or (and .cse4 .cse5 .cse6) (not (<= 2 |ackermann_#in~m|))) (let ((.cse8 (<= 1 |ackermann_#in~n|))) (or (and .cse7 .cse8) (and .cse9 .cse8 .cse10) .cse1)) (or (and (<= |ackermann_#in~n| 2) (<= 3 |ackermann_#t~ret9|) (<= 3 |ackermann_#res|) .cse5 .cse6) .cse0 (and (<= |ackermann_#res| 6) (<= 4 |ackermann_#in~n|) (<= |ackermann_#t~ret9| 6) (<= 6 |ackermann_#t~ret9|) (<= 6 |ackermann_#res|) .cse5 .cse6 (<= |ackermann_#in~n| 4)) (and .cse9 (<= |ackermann_#in~n| 3) .cse10 .cse4 .cse5 .cse6) (and .cse11 (<= 5 |ackermann_#in~n|) .cse12 .cse13 .cse5 .cse6 .cse14) (and (<= 6 |ackermann_#in~n|) .cse4 .cse5 .cse6) .cse3) (or .cse7 .cse15 .cse16 (and .cse11 .cse12 .cse13 .cse14) .cse2) .cse17 (or (<= 5 |ackermann_#t~ret9|) (and .cse15 .cse16) (and (<= 4 |ackermann_#res|) (<= 4 |ackermann_#t~ret9|) (<= |ackermann_#res| 4)))))) [2020-11-07 04:51:27,230 INFO L262 CegarLoopResult]: At program point L16(lines 16 24) the Hoare annotation is: (= ackermann_~m |ackermann_#in~m|) [2020-11-07 04:51:27,230 INFO L262 CegarLoopResult]: At program point ackermannFINAL(lines 16 24) the Hoare annotation is: (let ((.cse1 (<= 7 |ackermann_#res|)) (.cse2 (<= |ackermann_#res| 7)) (.cse6 (<= 3 |ackermann_#in~n|)) (.cse5 (<= |ackermann_#res| 5)) (.cse8 (<= 3 ackermann_~m)) (.cse4 (<= 5 |ackermann_#res|)) (.cse3 (<= |ackermann_#in~m| 1)) (.cse7 (<= 1 |ackermann_#in~m|)) (.cse13 (= |ackermann_#in~n| 0)) (.cse10 (<= 1 |ackermann_#in~n|)) (.cse14 (<= 3 |ackermann_#res|)) (.cse15 (<= |ackermann_#res| 3)) (.cse0 (<= |ackermann_#in~n| 1)) (.cse9 (<= 2 |ackermann_#in~m|)) (.cse16 (= |ackermann_#in~m| 0))) (and (or .cse0 (and .cse1 .cse2 (<= 5 |ackermann_#in~n|)) (not .cse3) (and (<= 6 |ackermann_#in~n|) .cse4) (and (<= |ackermann_#res| 6) (<= 4 |ackermann_#in~n|) (<= 6 |ackermann_#res|) (<= |ackermann_#in~n| 4)) (and (<= 4 |ackermann_#res|) (<= |ackermann_#in~n| 2) (<= |ackermann_#res| 4)) (and (<= |ackermann_#in~n| 3) .cse5 .cse6 .cse4) (not .cse7)) (or .cse8 .cse0 (and .cse1 .cse2) (not .cse9) .cse6) (let ((.cse11 (= ackermann_~n |ackermann_#in~n|)) (.cse12 (= ackermann_~m |ackermann_#in~m|))) (or (and .cse0 .cse10 .cse5 .cse4 .cse11 .cse12) (and .cse8 .cse13 .cse4 .cse11 .cse12) (and .cse13 (<= |ackermann_#in~m| 2) .cse14 .cse11 .cse12 .cse15) (and .cse8 .cse10 .cse4 .cse11 .cse12) (and (<= 2 |ackermann_#in~n|) .cse4 .cse11 .cse12 .cse9) (and .cse3 .cse11 .cse7 .cse12) (and .cse11 .cse12 .cse16))) (or (and (<= 2 |ackermann_#res|) .cse13 (<= |ackermann_#res| 2)) (and .cse10 .cse14 .cse15) (not .cse0) .cse9 .cse16) (or (let ((.cse17 (+ |ackermann_#in~n| 1))) (and (<= .cse17 |ackermann_#res|) (<= |ackermann_#res| .cse17))) (not .cse16)))) [2020-11-07 04:51:27,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:51:27 BoogieIcfgContainer [2020-11-07 04:51:27,253 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 04:51:27,254 INFO L168 Benchmark]: Toolchain (without parser) took 182201.72 ms. Allocated memory was 151.0 MB in the beginning and 789.6 MB in the end (delta: 638.6 MB). Free memory was 136.3 MB in the beginning and 508.1 MB in the end (delta: -371.8 MB). Peak memory consumption was 498.6 MB. Max. memory is 8.0 GB. [2020-11-07 04:51:27,255 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 125.4 MB in the end (delta: 73.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 04:51:27,255 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.28 ms. Allocated memory is still 151.0 MB. Free memory was 135.6 MB in the beginning and 126.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-07 04:51:27,256 INFO L168 Benchmark]: Boogie Preprocessor took 35.41 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 124.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-07 04:51:27,256 INFO L168 Benchmark]: RCFGBuilder took 571.88 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 121.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-11-07 04:51:27,256 INFO L168 Benchmark]: TraceAbstraction took 181297.92 ms. Allocated memory was 151.0 MB in the beginning and 789.6 MB in the end (delta: 638.6 MB). Free memory was 120.7 MB in the beginning and 508.1 MB in the end (delta: -387.4 MB). Peak memory consumption was 484.5 MB. Max. memory is 8.0 GB. [2020-11-07 04:51:27,258 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 125.4 MB in the end (delta: 73.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 279.28 ms. Allocated memory is still 151.0 MB. Free memory was 135.6 MB in the beginning and 126.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.41 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 124.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 571.88 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 121.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 181297.92 ms. Allocated memory was 151.0 MB in the beginning and 789.6 MB in the end (delta: 638.6 MB). Free memory was 120.7 MB in the beginning and 508.1 MB in the end (delta: -387.4 MB). Peak memory consumption was 484.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 3]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 16]: Procedure Contract for ackermann Derived contract for procedure ackermann: ((((((((((\old(n) <= 1 || ((7 <= \result && \result <= 7) && 5 <= \old(n))) || !(\old(m) <= 1)) || (6 <= \old(n) && 5 <= \result)) || (((\result <= 6 && 4 <= \old(n)) && 6 <= \result) && \old(n) <= 4)) || ((4 <= \result && \old(n) <= 2) && \result <= 4)) || (((\old(n) <= 3 && \result <= 5) && 3 <= \old(n)) && 5 <= \result)) || !(1 <= \old(m))) && ((((3 <= m || \old(n) <= 1) || (7 <= \result && \result <= 7)) || !(2 <= \old(m))) || 3 <= \old(n))) && (((((((((((\old(n) <= 1 && 1 <= \old(n)) && \result <= 5) && 5 <= \result) && n == \old(n)) && m == \old(m)) || ((((3 <= m && \old(n) == 0) && 5 <= \result) && n == \old(n)) && m == \old(m))) || (((((\old(n) == 0 && \old(m) <= 2) && 3 <= \result) && n == \old(n)) && m == \old(m)) && \result <= 3)) || ((((3 <= m && 1 <= \old(n)) && 5 <= \result) && n == \old(n)) && m == \old(m))) || ((((2 <= \old(n) && 5 <= \result) && n == \old(n)) && m == \old(m)) && 2 <= \old(m))) || (((\old(m) <= 1 && n == \old(n)) && 1 <= \old(m)) && m == \old(m))) || ((n == \old(n) && m == \old(m)) && \old(m) == 0))) && ((((((2 <= \result && \old(n) == 0) && \result <= 2) || ((1 <= \old(n) && 3 <= \result) && \result <= 3)) || !(\old(n) <= 1)) || 2 <= \old(m)) || \old(m) == 0)) && ((\old(n) + 1 <= \result && \result <= \old(n) + 1) || !(\old(m) == 0)) - ProcedureContractResult [Line: 27]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 55.5s, OverallIterations: 16, TraceHistogramMax: 43, AutomataDifference: 42.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 125.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 945 SDtfs, 2231 SDslu, 1845 SDs, 0 SdLazy, 11371 SolverSat, 1837 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1531 GetRequests, 840 SyntacticMatches, 0 SemanticMatches, 691 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11657 ImplicationChecksByTransitivity, 31.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=293occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 16 MinimizatonAttempts, 486 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 56 LocationsWithAnnotation, 4868 PreInvPairs, 25644 NumberOfFragments, 2247 HoareAnnotationTreeSize, 4868 FomulaSimplifications, 225857059 FormulaSimplificationTreeSizeReduction, 78.3s HoareSimplificationTime, 56 FomulaSimplificationsInter, 10463109 FormulaSimplificationTreeSizeReductionInter, 46.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 3635 NumberOfCodeBlocks, 3635 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3619 ConstructedInterpolants, 0 QuantifiedInterpolants, 1983229 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 1 PerfectInterpolantSequences, 25099/32870 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...