/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-b8ad66e [2020-10-24 00:35:59,451 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 00:35:59,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 00:35:59,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-24 00:35:59,505 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 00:35:59,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 00:35:59,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 00:35:59,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 00:35:59,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 00:35:59,511 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 00:35:59,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 00:35:59,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 00:35:59,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 00:35:59,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 00:35:59,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 00:35:59,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 00:35:59,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 00:35:59,540 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 00:35:59,563 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 00:35:59,564 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 00:35:59,569 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 00:35:59,569 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 00:35:59,569 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 00:35:59,569 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 00:35:59,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 00:35:59,570 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 00:35:59,570 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 00:35:59,570 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 00:35:59,571 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 00:35:59,571 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 00:35:59,572 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 00:35:59,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 00:35:59,572 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 00:35:59,572 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 00:35:59,572 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 00:35:59,573 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 00:35:59,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 00:35:59,573 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 00:35:59,573 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 00:35:59,573 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 00:35:59,574 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 00:35:59,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 00:36:00,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 00:36:00,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 00:36:00,018 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 00:36:00,019 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 00:36:00,020 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Ackermann03.c [2020-10-24 00:36:00,108 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1000ff26c/5d20309bfa404fa1874584931c5f0476/FLAGcb3041250 [2020-10-24 00:36:00,686 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 00:36:00,686 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/Ackermann03.c [2020-10-24 00:36:00,692 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1000ff26c/5d20309bfa404fa1874584931c5f0476/FLAGcb3041250 [2020-10-24 00:36:01,043 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1000ff26c/5d20309bfa404fa1874584931c5f0476 [2020-10-24 00:36:01,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 00:36:01,064 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 00:36:01,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 00:36:01,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 00:36:01,073 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 00:36:01,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:36:01" (1/1) ... [2020-10-24 00:36:01,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3480c8cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:36:01, skipping insertion in model container [2020-10-24 00:36:01,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:36:01" (1/1) ... [2020-10-24 00:36:01,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 00:36:01,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 00:36:01,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:36:01,267 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 00:36:01,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:36:01,302 INFO L208 MainTranslator]: Completed translation [2020-10-24 00:36:01,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:36:01 WrapperNode [2020-10-24 00:36:01,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 00:36:01,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 00:36:01,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 00:36:01,304 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 00:36:01,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:36:01" (1/1) ... [2020-10-24 00:36:01,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:36:01" (1/1) ... [2020-10-24 00:36:01,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:36:01" (1/1) ... [2020-10-24 00:36:01,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:36:01" (1/1) ... [2020-10-24 00:36:01,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:36:01" (1/1) ... [2020-10-24 00:36:01,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:36:01" (1/1) ... [2020-10-24 00:36:01,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:36:01" (1/1) ... [2020-10-24 00:36:01,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 00:36:01,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 00:36:01,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 00:36:01,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 00:36:01,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:36:01" (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 [2020-10-24 00:36:01,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 00:36:01,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 00:36:01,403 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 00:36:01,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ackermann [2020-10-24 00:36:01,403 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 00:36:01,404 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 00:36:01,404 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 00:36:01,404 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 00:36:01,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 00:36:01,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-24 00:36:01,405 INFO L130 BoogieDeclarations]: Found specification of procedure ackermann [2020-10-24 00:36:01,405 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 00:36:01,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 00:36:01,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 00:36:01,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 00:36:01,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 00:36:01,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 00:36:01,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 00:36:01,876 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 00:36:01,876 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-24 00:36:01,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:36:01 BoogieIcfgContainer [2020-10-24 00:36:01,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 00:36:01,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 00:36:01,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 00:36:01,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 00:36:01,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:36:01" (1/3) ... [2020-10-24 00:36:01,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b541dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:36:01, skipping insertion in model container [2020-10-24 00:36:01,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:36:01" (2/3) ... [2020-10-24 00:36:01,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b541dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:36:01, skipping insertion in model container [2020-10-24 00:36:01,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:36:01" (3/3) ... [2020-10-24 00:36:01,888 INFO L111 eAbstractionObserver]: Analyzing ICFG Ackermann03.c [2020-10-24 00:36:01,901 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 00:36:01,907 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 00:36:01,922 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 00:36:01,948 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 00:36:01,949 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 00:36:01,949 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 00:36:01,949 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 00:36:01,949 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 00:36:01,949 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 00:36:01,949 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 00:36:01,950 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 00:36:01,966 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-10-24 00:36:01,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-24 00:36:01,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:36:01,978 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] [2020-10-24 00:36:01,978 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:36:01,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:36:01,985 INFO L82 PathProgramCache]: Analyzing trace with hash -946996355, now seen corresponding path program 1 times [2020-10-24 00:36:01,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:36:01,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [266328657] [2020-10-24 00:36:01,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:36:02,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:02,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:36:02,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:02,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-24 00:36:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:02,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 00:36:02,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [266328657] [2020-10-24 00:36:02,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:36:02,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-24 00:36:02,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518048635] [2020-10-24 00:36:02,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 00:36:02,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:36:02,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 00:36:02,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-24 00:36:02,427 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 6 states. [2020-10-24 00:36:02,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:36:02,909 INFO L93 Difference]: Finished difference Result 101 states and 124 transitions. [2020-10-24 00:36:02,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 00:36:02,911 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-10-24 00:36:02,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:36:02,924 INFO L225 Difference]: With dead ends: 101 [2020-10-24 00:36:02,924 INFO L226 Difference]: Without dead ends: 54 [2020-10-24 00:36:02,929 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 [2020-10-24 00:36:02,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-24 00:36:02,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-24 00:36:02,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-24 00:36:02,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2020-10-24 00:36:02,996 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 33 [2020-10-24 00:36:02,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:36:02,997 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2020-10-24 00:36:02,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 00:36:02,997 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2020-10-24 00:36:03,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-24 00:36:03,001 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:36:03,002 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] [2020-10-24 00:36:03,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 00:36:03,002 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:36:03,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:36:03,003 INFO L82 PathProgramCache]: Analyzing trace with hash 300807360, now seen corresponding path program 1 times [2020-10-24 00:36:03,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:36:03,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1695637587] [2020-10-24 00:36:03,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:36:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:03,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:36:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:03,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-24 00:36:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:03,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:03,158 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-24 00:36:03,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1695637587] [2020-10-24 00:36:03,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 00:36:03,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-24 00:36:03,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903393455] [2020-10-24 00:36:03,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 00:36:03,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:36:03,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 00:36:03,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-24 00:36:03,163 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand 6 states. [2020-10-24 00:36:03,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:36:03,492 INFO L93 Difference]: Finished difference Result 93 states and 118 transitions. [2020-10-24 00:36:03,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 00:36:03,493 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-10-24 00:36:03,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:36:03,496 INFO L225 Difference]: With dead ends: 93 [2020-10-24 00:36:03,496 INFO L226 Difference]: Without dead ends: 56 [2020-10-24 00:36:03,499 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 [2020-10-24 00:36:03,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-24 00:36:03,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-24 00:36:03,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-24 00:36:03,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 65 transitions. [2020-10-24 00:36:03,521 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 65 transitions. Word has length 43 [2020-10-24 00:36:03,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:36:03,521 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 65 transitions. [2020-10-24 00:36:03,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 00:36:03,522 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2020-10-24 00:36:03,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-24 00:36:03,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:36:03,527 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] [2020-10-24 00:36:03,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 00:36:03,528 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:36:03,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:36:03,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1772464485, now seen corresponding path program 1 times [2020-10-24 00:36:03,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:36:03,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1532749119] [2020-10-24 00:36:03,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:36:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:03,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:36:03,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:03,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-24 00:36:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:03,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:03,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:03,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:03,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:03,735 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-24 00:36:03,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1532749119] [2020-10-24 00:36:03,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 00:36:03,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 00:36:03,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457790031] [2020-10-24 00:36:03,739 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 00:36:03,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:36:03,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 00:36:03,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-24 00:36:03,742 INFO L87 Difference]: Start difference. First operand 56 states and 65 transitions. Second operand 7 states. [2020-10-24 00:36:04,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:36:04,229 INFO L93 Difference]: Finished difference Result 85 states and 107 transitions. [2020-10-24 00:36:04,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-24 00:36:04,230 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 62 [2020-10-24 00:36:04,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:36:04,233 INFO L225 Difference]: With dead ends: 85 [2020-10-24 00:36:04,233 INFO L226 Difference]: Without dead ends: 78 [2020-10-24 00:36:04,234 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 [2020-10-24 00:36:04,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-24 00:36:04,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-10-24 00:36:04,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-24 00:36:04,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2020-10-24 00:36:04,260 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 62 [2020-10-24 00:36:04,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:36:04,261 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2020-10-24 00:36:04,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 00:36:04,261 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2020-10-24 00:36:04,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-24 00:36:04,266 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:36:04,266 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] [2020-10-24 00:36:04,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 00:36:04,267 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:36:04,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:36:04,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1545390750, now seen corresponding path program 2 times [2020-10-24 00:36:04,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:36:04,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [104990896] [2020-10-24 00:36:04,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:36:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:04,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:36:04,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:04,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-24 00:36:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:04,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:04,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:04,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:04,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:04,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:04,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-24 00:36:04,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:04,495 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-24 00:36:04,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [104990896] [2020-10-24 00:36:04,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 00:36:04,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 00:36:04,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882696095] [2020-10-24 00:36:04,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 00:36:04,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:36:04,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 00:36:04,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-24 00:36:04,499 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand 7 states. [2020-10-24 00:36:04,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:36:04,949 INFO L93 Difference]: Finished difference Result 117 states and 169 transitions. [2020-10-24 00:36:04,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-24 00:36:04,949 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2020-10-24 00:36:04,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:36:04,954 INFO L225 Difference]: With dead ends: 117 [2020-10-24 00:36:04,954 INFO L226 Difference]: Without dead ends: 110 [2020-10-24 00:36:04,955 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-24 00:36:04,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-24 00:36:04,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-10-24 00:36:04,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-24 00:36:04,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 162 transitions. [2020-10-24 00:36:04,995 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 162 transitions. Word has length 81 [2020-10-24 00:36:04,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:36:04,995 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 162 transitions. [2020-10-24 00:36:04,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 00:36:04,996 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 162 transitions. [2020-10-24 00:36:05,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-24 00:36:05,003 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:36:05,004 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] [2020-10-24 00:36:05,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 00:36:05,004 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:36:05,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:36:05,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1932765146, now seen corresponding path program 3 times [2020-10-24 00:36:05,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:36:05,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [724382949] [2020-10-24 00:36:05,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:36:05,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:05,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:36:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:05,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-24 00:36:05,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:05,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:05,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:05,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:05,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:05,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:05,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:05,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:05,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:05,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:05,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:05,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:05,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-24 00:36:05,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:05,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:05,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:05,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:05,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:05,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:05,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:05,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-24 00:36:05,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:05,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:05,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:05,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:05,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:05,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:05,578 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 197 proven. 298 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2020-10-24 00:36:05,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [724382949] [2020-10-24 00:36:05,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 00:36:05,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-24 00:36:05,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501254200] [2020-10-24 00:36:05,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-24 00:36:05,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:36:05,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-24 00:36:05,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-24 00:36:05,582 INFO L87 Difference]: Start difference. First operand 110 states and 162 transitions. Second operand 11 states. [2020-10-24 00:36:06,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:36:06,850 INFO L93 Difference]: Finished difference Result 230 states and 451 transitions. [2020-10-24 00:36:06,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-24 00:36:06,851 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 188 [2020-10-24 00:36:06,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:36:06,855 INFO L225 Difference]: With dead ends: 230 [2020-10-24 00:36:06,855 INFO L226 Difference]: Without dead ends: 126 [2020-10-24 00:36:06,858 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 [2020-10-24 00:36:06,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-24 00:36:06,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 125. [2020-10-24 00:36:06,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-24 00:36:06,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 176 transitions. [2020-10-24 00:36:06,913 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 176 transitions. Word has length 188 [2020-10-24 00:36:06,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:36:06,913 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 176 transitions. [2020-10-24 00:36:06,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-24 00:36:06,914 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 176 transitions. [2020-10-24 00:36:06,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-24 00:36:06,917 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:36:06,918 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] [2020-10-24 00:36:06,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-24 00:36:06,918 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:36:06,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:36:06,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1837059662, now seen corresponding path program 4 times [2020-10-24 00:36:06,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:36:06,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1178500953] [2020-10-24 00:36:06,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:36:06,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:06,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:36:06,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:07,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-24 00:36:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:07,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:07,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:07,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:07,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:07,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:07,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:07,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:07,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-24 00:36:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:07,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:07,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:07,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-24 00:36:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:07,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:07,370 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 110 proven. 71 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2020-10-24 00:36:07,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1178500953] [2020-10-24 00:36:07,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 00:36:07,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-24 00:36:07,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781865019] [2020-10-24 00:36:07,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-24 00:36:07,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:36:07,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-24 00:36:07,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-10-24 00:36:07,380 INFO L87 Difference]: Start difference. First operand 125 states and 176 transitions. Second operand 16 states. [2020-10-24 00:36:09,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:36:09,397 INFO L93 Difference]: Finished difference Result 265 states and 440 transitions. [2020-10-24 00:36:09,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-24 00:36:09,399 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 130 [2020-10-24 00:36:09,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:36:09,405 INFO L225 Difference]: With dead ends: 265 [2020-10-24 00:36:09,406 INFO L226 Difference]: Without dead ends: 165 [2020-10-24 00:36:09,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=397, Invalid=1325, Unknown=0, NotChecked=0, Total=1722 [2020-10-24 00:36:09,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-10-24 00:36:09,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 125. [2020-10-24 00:36:09,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-24 00:36:09,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 167 transitions. [2020-10-24 00:36:09,449 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 167 transitions. Word has length 130 [2020-10-24 00:36:09,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:36:09,449 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 167 transitions. [2020-10-24 00:36:09,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-24 00:36:09,450 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 167 transitions. [2020-10-24 00:36:09,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-24 00:36:09,452 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:36:09,452 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 9, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2020-10-24 00:36:09,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-24 00:36:09,453 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:36:09,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:36:09,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1924315322, now seen corresponding path program 5 times [2020-10-24 00:36:09,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:36:09,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1772931866] [2020-10-24 00:36:09,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:36:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:09,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:36:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:09,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-24 00:36:09,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:09,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:09,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:09,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:09,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:09,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:09,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:09,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:09,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:09,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:09,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-24 00:36:09,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:09,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:09,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:09,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:09,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:09,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:09,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:09,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-24 00:36:09,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:09,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:09,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:09,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:09,999 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 181 proven. 172 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2020-10-24 00:36:09,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1772931866] [2020-10-24 00:36:10,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 00:36:10,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-24 00:36:10,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161657913] [2020-10-24 00:36:10,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-24 00:36:10,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:36:10,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-24 00:36:10,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2020-10-24 00:36:10,020 INFO L87 Difference]: Start difference. First operand 125 states and 167 transitions. Second operand 17 states. [2020-10-24 00:36:12,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:36:12,997 INFO L93 Difference]: Finished difference Result 282 states and 452 transitions. [2020-10-24 00:36:13,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-24 00:36:13,000 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 168 [2020-10-24 00:36:13,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:36:13,004 INFO L225 Difference]: With dead ends: 282 [2020-10-24 00:36:13,004 INFO L226 Difference]: Without dead ends: 182 [2020-10-24 00:36:13,008 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=705, Invalid=2265, Unknown=0, NotChecked=0, Total=2970 [2020-10-24 00:36:13,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-10-24 00:36:13,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 138. [2020-10-24 00:36:13,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-24 00:36:13,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 182 transitions. [2020-10-24 00:36:13,093 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 182 transitions. Word has length 168 [2020-10-24 00:36:13,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:36:13,094 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 182 transitions. [2020-10-24 00:36:13,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-24 00:36:13,094 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 182 transitions. [2020-10-24 00:36:13,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-24 00:36:13,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:36:13,098 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 11, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2020-10-24 00:36:13,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-24 00:36:13,099 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:36:13,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:36:13,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1273104622, now seen corresponding path program 6 times [2020-10-24 00:36:13,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:36:13,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1104548576] [2020-10-24 00:36:13,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:36:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:13,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:36:13,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:13,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-24 00:36:13,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:13,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:13,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:13,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:13,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:13,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:13,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:13,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:13,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:13,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:13,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-24 00:36:13,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:13,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:13,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:13,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:13,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:13,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:13,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-24 00:36:13,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:13,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-24 00:36:13,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:13,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:13,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:13,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:13,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:13,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:13,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-24 00:36:13,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:13,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1109 backedges. 180 proven. 344 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2020-10-24 00:36:13,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1104548576] [2020-10-24 00:36:13,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 00:36:13,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-24 00:36:13,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989411073] [2020-10-24 00:36:13,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-24 00:36:13,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:36:13,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-24 00:36:13,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2020-10-24 00:36:13,706 INFO L87 Difference]: Start difference. First operand 138 states and 182 transitions. Second operand 17 states. [2020-10-24 00:36:17,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:36:17,152 INFO L93 Difference]: Finished difference Result 330 states and 517 transitions. [2020-10-24 00:36:17,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-10-24 00:36:17,153 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 206 [2020-10-24 00:36:17,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:36:17,161 INFO L225 Difference]: With dead ends: 330 [2020-10-24 00:36:17,161 INFO L226 Difference]: Without dead ends: 206 [2020-10-24 00:36:17,165 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 933 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=889, Invalid=2893, Unknown=0, NotChecked=0, Total=3782 [2020-10-24 00:36:17,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-24 00:36:17,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 162. [2020-10-24 00:36:17,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-24 00:36:17,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 216 transitions. [2020-10-24 00:36:17,213 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 216 transitions. Word has length 206 [2020-10-24 00:36:17,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:36:17,214 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 216 transitions. [2020-10-24 00:36:17,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-24 00:36:17,214 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 216 transitions. [2020-10-24 00:36:17,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-10-24 00:36:17,218 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:36:17,218 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] [2020-10-24 00:36:17,218 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-24 00:36:17,218 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:36:17,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:36:17,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1904198470, now seen corresponding path program 7 times [2020-10-24 00:36:17,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:36:17,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1909897488] [2020-10-24 00:36:17,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:36:17,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:17,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:36:17,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:17,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-24 00:36:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:17,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:17,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:17,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:17,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:17,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:17,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:17,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:17,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:17,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:17,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:17,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:17,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-24 00:36:17,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:17,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:17,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:17,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:17,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:17,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:17,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:17,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:17,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:17,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-24 00:36:17,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:17,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-24 00:36:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:17,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-24 00:36:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:17,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:17,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:17,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:17,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:18,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:18,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:18,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:18,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:18,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-24 00:36:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:18,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-24 00:36:18,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:18,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1664 backedges. 525 proven. 337 refuted. 0 times theorem prover too weak. 802 trivial. 0 not checked. [2020-10-24 00:36:18,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1909897488] [2020-10-24 00:36:18,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 00:36:18,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-24 00:36:18,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887987768] [2020-10-24 00:36:18,278 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-24 00:36:18,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:36:18,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-24 00:36:18,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2020-10-24 00:36:18,284 INFO L87 Difference]: Start difference. First operand 162 states and 216 transitions. Second operand 23 states. [2020-10-24 00:36:24,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:36:24,457 INFO L93 Difference]: Finished difference Result 414 states and 647 transitions. [2020-10-24 00:36:24,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2020-10-24 00:36:24,458 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 244 [2020-10-24 00:36:24,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:36:24,464 INFO L225 Difference]: With dead ends: 414 [2020-10-24 00:36:24,464 INFO L226 Difference]: Without dead ends: 278 [2020-10-24 00:36:24,470 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2537 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=1868, Invalid=7444, Unknown=0, NotChecked=0, Total=9312 [2020-10-24 00:36:24,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-10-24 00:36:24,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 198. [2020-10-24 00:36:24,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-24 00:36:24,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 276 transitions. [2020-10-24 00:36:24,522 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 276 transitions. Word has length 244 [2020-10-24 00:36:24,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:36:24,523 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 276 transitions. [2020-10-24 00:36:24,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-24 00:36:24,523 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 276 transitions. [2020-10-24 00:36:24,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-10-24 00:36:24,528 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:36:24,528 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] [2020-10-24 00:36:24,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-24 00:36:24,528 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:36:24,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:36:24,529 INFO L82 PathProgramCache]: Analyzing trace with hash 198340805, now seen corresponding path program 8 times [2020-10-24 00:36:24,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:36:24,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [122647591] [2020-10-24 00:36:24,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:36:24,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:24,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:36:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:24,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-24 00:36:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:24,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:24,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:24,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:24,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:24,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:24,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:24,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:24,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:24,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:24,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-24 00:36:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:24,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:24,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:24,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:25,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:25,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:25,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:25,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-24 00:36:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:25,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-24 00:36:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:25,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-24 00:36:25,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:25,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:25,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:25,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:25,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:25,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:25,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:25,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:25,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:25,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:25,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-24 00:36:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:25,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-24 00:36:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:25,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-24 00:36:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:25,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1985 backedges. 588 proven. 448 refuted. 0 times theorem prover too weak. 949 trivial. 0 not checked. [2020-10-24 00:36:25,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [122647591] [2020-10-24 00:36:25,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 00:36:25,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-24 00:36:25,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974830782] [2020-10-24 00:36:25,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-24 00:36:25,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:36:25,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-24 00:36:25,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2020-10-24 00:36:25,578 INFO L87 Difference]: Start difference. First operand 198 states and 276 transitions. Second operand 24 states. [2020-10-24 00:36:32,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:36:32,472 INFO L93 Difference]: Finished difference Result 486 states and 790 transitions. [2020-10-24 00:36:32,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2020-10-24 00:36:32,472 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 263 [2020-10-24 00:36:32,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:36:32,479 INFO L225 Difference]: With dead ends: 486 [2020-10-24 00:36:32,480 INFO L226 Difference]: Without dead ends: 314 [2020-10-24 00:36:32,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3120 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=2150, Invalid=8770, Unknown=0, NotChecked=0, Total=10920 [2020-10-24 00:36:32,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-10-24 00:36:32,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 222. [2020-10-24 00:36:32,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-10-24 00:36:32,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 318 transitions. [2020-10-24 00:36:32,551 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 318 transitions. Word has length 263 [2020-10-24 00:36:32,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:36:32,552 INFO L481 AbstractCegarLoop]: Abstraction has 222 states and 318 transitions. [2020-10-24 00:36:32,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-24 00:36:32,552 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 318 transitions. [2020-10-24 00:36:32,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2020-10-24 00:36:32,557 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:36:32,557 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] [2020-10-24 00:36:32,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-24 00:36:32,557 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:36:32,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:36:32,558 INFO L82 PathProgramCache]: Analyzing trace with hash 2013349288, now seen corresponding path program 9 times [2020-10-24 00:36:32,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:36:32,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1103770297] [2020-10-24 00:36:32,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:36:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:32,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:36:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:32,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-24 00:36:32,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:32,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:32,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:32,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:32,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:32,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:32,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:32,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:32,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-24 00:36:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:32,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:32,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:32,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:32,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:32,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:32,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:32,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:32,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-24 00:36:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:32,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-24 00:36:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:32,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-24 00:36:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:32,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:32,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:33,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:33,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:33,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:33,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:33,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:33,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:33,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:33,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-24 00:36:33,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:33,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-24 00:36:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:33,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-24 00:36:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:33,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-24 00:36:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:33,881 INFO L134 CoverageAnalysis]: Checked inductivity of 2335 backedges. 737 proven. 198 refuted. 0 times theorem prover too weak. 1400 trivial. 0 not checked. [2020-10-24 00:36:33,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1103770297] [2020-10-24 00:36:33,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 00:36:33,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-24 00:36:33,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155970792] [2020-10-24 00:36:33,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-24 00:36:33,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:36:33,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-24 00:36:33,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=598, Unknown=0, NotChecked=0, Total=650 [2020-10-24 00:36:33,884 INFO L87 Difference]: Start difference. First operand 222 states and 318 transitions. Second operand 26 states. [2020-10-24 00:36:39,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:36:39,214 INFO L93 Difference]: Finished difference Result 406 states and 595 transitions. [2020-10-24 00:36:39,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-24 00:36:39,214 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 282 [2020-10-24 00:36:39,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:36:39,221 INFO L225 Difference]: With dead ends: 406 [2020-10-24 00:36:39,222 INFO L226 Difference]: Without dead ends: 391 [2020-10-24 00:36:39,226 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1173 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=530, Invalid=5170, Unknown=0, NotChecked=0, Total=5700 [2020-10-24 00:36:39,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2020-10-24 00:36:39,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 293. [2020-10-24 00:36:39,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-10-24 00:36:39,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 448 transitions. [2020-10-24 00:36:39,308 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 448 transitions. Word has length 282 [2020-10-24 00:36:39,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:36:39,309 INFO L481 AbstractCegarLoop]: Abstraction has 293 states and 448 transitions. [2020-10-24 00:36:39,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-24 00:36:39,310 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 448 transitions. [2020-10-24 00:36:39,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-10-24 00:36:39,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:36:39,313 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] [2020-10-24 00:36:39,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-24 00:36:39,313 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:36:39,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:36:39,314 INFO L82 PathProgramCache]: Analyzing trace with hash 505206055, now seen corresponding path program 10 times [2020-10-24 00:36:39,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:36:39,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1658287134] [2020-10-24 00:36:39,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:36:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:39,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:36:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:39,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-24 00:36:39,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:39,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:39,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:39,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:39,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:39,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:39,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:39,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:39,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:39,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:39,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-24 00:36:39,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:39,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:39,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:39,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:39,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:39,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:39,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:39,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:39,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-24 00:36:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:39,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-24 00:36:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:39,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-24 00:36:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:39,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:39,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:39,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:39,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:39,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:40,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:40,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:40,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:40,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:40,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:40,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:40,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-24 00:36:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:40,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-24 00:36:40,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:40,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-24 00:36:40,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:40,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-24 00:36:40,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:40,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-24 00:36:40,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:40,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2714 backedges. 792 proven. 634 refuted. 0 times theorem prover too weak. 1288 trivial. 0 not checked. [2020-10-24 00:36:40,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1658287134] [2020-10-24 00:36:40,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 00:36:40,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-24 00:36:40,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516226906] [2020-10-24 00:36:40,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-24 00:36:40,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:36:40,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-24 00:36:40,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=562, Unknown=0, NotChecked=0, Total=650 [2020-10-24 00:36:40,331 INFO L87 Difference]: Start difference. First operand 293 states and 448 transitions. Second operand 26 states. [2020-10-24 00:36:43,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:36:43,092 INFO L93 Difference]: Finished difference Result 716 states and 1270 transitions. [2020-10-24 00:36:43,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-24 00:36:43,093 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 301 [2020-10-24 00:36:43,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:36:43,102 INFO L225 Difference]: With dead ends: 716 [2020-10-24 00:36:43,102 INFO L226 Difference]: Without dead ends: 320 [2020-10-24 00:36:43,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 899 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=599, Invalid=2941, Unknown=0, NotChecked=0, Total=3540 [2020-10-24 00:36:43,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-10-24 00:36:43,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 288. [2020-10-24 00:36:43,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-10-24 00:36:43,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 429 transitions. [2020-10-24 00:36:43,192 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 429 transitions. Word has length 301 [2020-10-24 00:36:43,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:36:43,192 INFO L481 AbstractCegarLoop]: Abstraction has 288 states and 429 transitions. [2020-10-24 00:36:43,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-24 00:36:43,193 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 429 transitions. [2020-10-24 00:36:43,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-10-24 00:36:43,196 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:36:43,196 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] [2020-10-24 00:36:43,196 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-24 00:36:43,196 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:36:43,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:36:43,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1837265288, now seen corresponding path program 11 times [2020-10-24 00:36:43,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:36:43,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [901986264] [2020-10-24 00:36:43,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:36:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:36:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-24 00:36:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:43,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-24 00:36:43,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:43,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:43,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:43,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-24 00:36:43,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-24 00:36:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-24 00:36:43,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-24 00:36:43,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:43,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:43,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:43,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:43,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:43,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:43,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-24 00:36:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-24 00:36:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-24 00:36:43,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-24 00:36:43,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:43,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-24 00:36:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:44,025 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 335 proven. 939 refuted. 0 times theorem prover too weak. 1848 trivial. 0 not checked. [2020-10-24 00:36:44,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [901986264] [2020-10-24 00:36:44,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 00:36:44,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-24 00:36:44,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049412849] [2020-10-24 00:36:44,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-24 00:36:44,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:36:44,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-24 00:36:44,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2020-10-24 00:36:44,028 INFO L87 Difference]: Start difference. First operand 288 states and 429 transitions. Second operand 19 states. [2020-10-24 00:36:45,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:36:45,966 INFO L93 Difference]: Finished difference Result 554 states and 904 transitions. [2020-10-24 00:36:45,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-24 00:36:45,966 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 320 [2020-10-24 00:36:45,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:36:45,973 INFO L225 Difference]: With dead ends: 554 [2020-10-24 00:36:45,973 INFO L226 Difference]: Without dead ends: 292 [2020-10-24 00:36:45,979 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=303, Invalid=1337, Unknown=0, NotChecked=0, Total=1640 [2020-10-24 00:36:45,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-10-24 00:36:46,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 288. [2020-10-24 00:36:46,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-10-24 00:36:46,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 425 transitions. [2020-10-24 00:36:46,051 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 425 transitions. Word has length 320 [2020-10-24 00:36:46,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:36:46,051 INFO L481 AbstractCegarLoop]: Abstraction has 288 states and 425 transitions. [2020-10-24 00:36:46,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-24 00:36:46,051 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 425 transitions. [2020-10-24 00:36:46,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2020-10-24 00:36:46,055 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:36:46,055 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] [2020-10-24 00:36:46,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-24 00:36:46,056 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:36:46,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:36:46,056 INFO L82 PathProgramCache]: Analyzing trace with hash -261225010, now seen corresponding path program 12 times [2020-10-24 00:36:46,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:36:46,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [441575074] [2020-10-24 00:36:46,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:36:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:36:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-24 00:36:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:46,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-24 00:36:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:46,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:46,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:46,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-24 00:36:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-24 00:36:46,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-24 00:36:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:46,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:46,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-24 00:36:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-24 00:36:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-24 00:36:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-24 00:36:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2020-10-24 00:36:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:46,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:46,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:46,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-24 00:36:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-24 00:36:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-24 00:36:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-24 00:36:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-24 00:36:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:46,900 INFO L134 CoverageAnalysis]: Checked inductivity of 5840 backedges. 323 proven. 570 refuted. 0 times theorem prover too weak. 4947 trivial. 0 not checked. [2020-10-24 00:36:46,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [441575074] [2020-10-24 00:36:46,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 00:36:46,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-24 00:36:46,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556719208] [2020-10-24 00:36:46,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-24 00:36:46,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:36:46,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-24 00:36:46,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-24 00:36:46,903 INFO L87 Difference]: Start difference. First operand 288 states and 425 transitions. Second operand 9 states. [2020-10-24 00:36:47,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:36:47,539 INFO L93 Difference]: Finished difference Result 295 states and 431 transitions. [2020-10-24 00:36:47,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-24 00:36:47,540 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 425 [2020-10-24 00:36:47,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:36:47,544 INFO L225 Difference]: With dead ends: 295 [2020-10-24 00:36:47,545 INFO L226 Difference]: Without dead ends: 288 [2020-10-24 00:36:47,547 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 [2020-10-24 00:36:47,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-10-24 00:36:47,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 264. [2020-10-24 00:36:47,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-10-24 00:36:47,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 369 transitions. [2020-10-24 00:36:47,612 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 369 transitions. Word has length 425 [2020-10-24 00:36:47,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:36:47,613 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 369 transitions. [2020-10-24 00:36:47,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-24 00:36:47,613 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 369 transitions. [2020-10-24 00:36:47,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2020-10-24 00:36:47,616 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:36:47,617 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] [2020-10-24 00:36:47,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-24 00:36:47,617 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:36:47,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:36:47,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1933891612, now seen corresponding path program 13 times [2020-10-24 00:36:47,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:36:47,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [795035268] [2020-10-24 00:36:47,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:36:47,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:47,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:36:47,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:47,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-24 00:36:47,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:47,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:47,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:47,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:47,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:47,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:47,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:48,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:48,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-24 00:36:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:48,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:48,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:48,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-24 00:36:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-24 00:36:48,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-24 00:36:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:48,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-24 00:36:48,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-24 00:36:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-24 00:36:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2020-10-24 00:36:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:48,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:48,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:48,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:48,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:48,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-24 00:36:48,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-24 00:36:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-24 00:36:48,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-24 00:36:48,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:48,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-24 00:36:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:49,134 INFO L134 CoverageAnalysis]: Checked inductivity of 5518 backedges. 712 proven. 1674 refuted. 0 times theorem prover too weak. 3132 trivial. 0 not checked. [2020-10-24 00:36:49,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [795035268] [2020-10-24 00:36:49,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 00:36:49,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-24 00:36:49,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273563541] [2020-10-24 00:36:49,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-24 00:36:49,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:36:49,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-24 00:36:49,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2020-10-24 00:36:49,138 INFO L87 Difference]: Start difference. First operand 264 states and 369 transitions. Second operand 28 states. [2020-10-24 00:36:55,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:36:55,762 INFO L93 Difference]: Finished difference Result 538 states and 841 transitions. [2020-10-24 00:36:55,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2020-10-24 00:36:55,763 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 416 [2020-10-24 00:36:55,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:36:55,771 INFO L225 Difference]: With dead ends: 538 [2020-10-24 00:36:55,771 INFO L226 Difference]: Without dead ends: 280 [2020-10-24 00:36:55,780 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2263 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=1861, Invalid=7645, Unknown=0, NotChecked=0, Total=9506 [2020-10-24 00:36:55,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-10-24 00:36:55,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 256. [2020-10-24 00:36:55,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-10-24 00:36:55,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 341 transitions. [2020-10-24 00:36:55,846 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 341 transitions. Word has length 416 [2020-10-24 00:36:55,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:36:55,847 INFO L481 AbstractCegarLoop]: Abstraction has 256 states and 341 transitions. [2020-10-24 00:36:55,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-24 00:36:55,847 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 341 transitions. [2020-10-24 00:36:55,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2020-10-24 00:36:55,851 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:36:55,851 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] [2020-10-24 00:36:55,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-24 00:36:55,853 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:36:55,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:36:55,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1814893477, now seen corresponding path program 14 times [2020-10-24 00:36:55,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:36:55,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1481132222] [2020-10-24 00:36:55,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:36:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:36:56,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-24 00:36:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:56,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:56,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:56,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:56,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-24 00:36:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:56,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:56,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:56,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-24 00:36:56,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-24 00:36:56,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-24 00:36:56,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:56,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:56,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:56,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-24 00:36:56,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-24 00:36:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-24 00:36:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-24 00:36:56,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2020-10-24 00:36:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:56,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-24 00:36:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 00:36:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-24 00:36:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-24 00:36:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-24 00:36:56,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-24 00:36:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-24 00:36:56,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:36:56,997 INFO L134 CoverageAnalysis]: Checked inductivity of 6093 backedges. 768 proven. 2006 refuted. 0 times theorem prover too weak. 3319 trivial. 0 not checked. [2020-10-24 00:36:56,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1481132222] [2020-10-24 00:36:56,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 00:36:56,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-24 00:36:56,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740352018] [2020-10-24 00:36:56,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-24 00:36:56,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:36:56,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-24 00:36:56,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-24 00:36:56,999 INFO L87 Difference]: Start difference. First operand 256 states and 341 transitions. Second operand 11 states. [2020-10-24 00:36:57,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:36:57,958 INFO L93 Difference]: Finished difference Result 480 states and 706 transitions. [2020-10-24 00:36:57,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-24 00:36:57,959 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 435 [2020-10-24 00:36:57,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:36:57,962 INFO L225 Difference]: With dead ends: 480 [2020-10-24 00:36:57,962 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 00:36:57,969 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2020-10-24 00:36:57,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 00:36:57,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 00:36:57,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 00:36:57,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 00:36:57,970 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 435 [2020-10-24 00:36:57,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:36:57,970 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 00:36:57,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-24 00:36:57,971 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 00:36:57,971 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 00:36:57,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-24 00:36:57,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 00:37:02,496 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 89 [2020-10-24 00:37:02,724 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 98 [2020-10-24 00:37:02,859 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 79 [2020-10-24 00:37:06,612 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 129 [2020-10-24 00:37:06,788 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 121 [2020-10-24 00:37:07,040 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2020-10-24 00:37:07,261 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 103 [2020-10-24 00:37:07,433 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 131 [2020-10-24 00:37:07,698 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 148 [2020-10-24 00:37:07,819 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 115 [2020-10-24 00:37:08,198 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2020-10-24 00:37:08,637 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 105 [2020-10-24 00:37:08,976 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 136 [2020-10-24 00:37:09,319 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 129 [2020-10-24 00:37:09,473 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 93 [2020-10-24 00:37:09,597 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 114 [2020-10-24 00:37:09,782 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 129 [2020-10-24 00:37:10,178 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 131 [2020-10-24 00:37:10,588 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2020-10-24 00:37:10,826 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2020-10-24 00:37:11,022 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 136 [2020-10-24 00:37:11,180 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 116 [2020-10-24 00:37:11,717 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 117 [2020-10-24 00:37:11,908 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 137 [2020-10-24 00:37:12,038 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 117 [2020-10-24 00:37:12,175 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 117 [2020-10-24 00:37:12,398 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 131 [2020-10-24 00:37:12,568 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 131 [2020-10-24 00:37:12,721 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 118 [2020-10-24 00:37:13,002 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 148 [2020-10-24 00:37:13,265 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 159 [2020-10-24 00:37:13,512 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 137 [2020-10-24 00:37:13,673 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 114 [2020-10-24 00:37:13,826 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 114 [2020-10-24 00:37:13,952 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 114 [2020-10-24 00:37:14,192 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2020-10-24 00:37:14,313 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 125 [2020-10-24 00:37:14,816 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 148 [2020-10-24 00:37:15,008 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 137 [2020-10-24 00:37:15,259 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 117 [2020-10-24 00:37:15,602 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 117 [2020-10-24 00:37:15,753 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 117 [2020-10-24 00:37:15,902 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 117 [2020-10-24 00:37:16,316 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 117 [2020-10-24 00:37:16,508 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 137 [2020-10-24 00:37:16,739 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 131 [2020-10-24 00:37:16,972 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2020-10-24 00:37:17,100 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 116 [2020-10-24 00:37:17,897 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 129 [2020-10-24 00:37:18,071 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 121 [2020-10-24 00:37:18,331 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2020-10-24 00:37:18,530 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 103 [2020-10-24 00:37:18,700 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 131 [2020-10-24 00:37:18,967 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 148 [2020-10-24 00:37:19,096 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 115 [2020-10-24 00:37:19,459 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2020-10-24 00:37:20,176 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 136 [2020-10-24 00:37:20,498 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 129 [2020-10-24 00:37:20,760 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 114 [2020-10-24 00:37:20,948 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 129 [2020-10-24 00:37:21,336 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 131 [2020-10-24 00:37:21,766 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2020-10-24 00:37:21,995 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2020-10-24 00:37:22,190 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 136 [2020-10-24 00:37:22,346 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 116 [2020-10-24 00:37:22,881 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 117 [2020-10-24 00:37:23,071 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 137 [2020-10-24 00:37:23,203 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 117 [2020-10-24 00:37:23,332 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 117 [2020-10-24 00:37:23,554 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 131 [2020-10-24 00:37:23,722 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 131 [2020-10-24 00:37:23,875 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 118 [2020-10-24 00:37:24,151 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 148 [2020-10-24 00:37:24,428 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 159 [2020-10-24 00:37:24,675 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 137 [2020-10-24 00:37:24,835 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 114 [2020-10-24 00:37:24,989 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 114 [2020-10-24 00:37:25,112 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 114 [2020-10-24 00:37:25,341 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2020-10-24 00:37:25,462 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 125 [2020-10-24 00:37:25,977 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 148 [2020-10-24 00:37:26,167 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 137 [2020-10-24 00:37:26,415 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 117 [2020-10-24 00:37:26,758 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 117 [2020-10-24 00:37:26,909 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 117 [2020-10-24 00:37:27,056 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 117 [2020-10-24 00:37:27,461 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 117 [2020-10-24 00:37:27,659 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 137 [2020-10-24 00:37:27,888 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 131 [2020-10-24 00:37:28,120 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2020-10-24 00:37:28,249 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 116 [2020-10-24 00:37:28,635 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 123 [2020-10-24 00:37:28,832 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 106 [2020-10-24 00:37:29,222 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 160 [2020-10-24 00:37:29,586 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 160 [2020-10-24 00:37:29,916 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 173 [2020-10-24 00:37:30,407 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 169 [2020-10-24 00:37:30,656 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 145 [2020-10-24 00:37:31,006 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 175 [2020-10-24 00:37:31,225 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 135 [2020-10-24 00:37:31,677 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 173 [2020-10-24 00:37:32,114 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 123 [2020-10-24 00:37:32,575 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 165 [2020-10-24 00:37:32,985 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 160 [2020-10-24 00:37:33,219 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 130 [2020-10-24 00:37:33,396 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 133 [2020-10-24 00:37:33,650 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 160 [2020-10-24 00:37:33,842 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 133 [2020-10-24 00:37:33,949 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 116 [2020-10-24 00:37:34,237 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 145 [2020-10-24 00:37:34,743 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 173 [2020-10-24 00:37:35,066 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 173 [2020-10-24 00:37:35,374 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 165 [2020-10-24 00:37:35,554 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 123 [2020-10-24 00:37:35,680 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 123 [2020-10-24 00:37:36,211 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 138 [2020-10-24 00:37:36,528 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 180 [2020-10-24 00:37:36,727 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 138 [2020-10-24 00:37:36,932 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 138 [2020-10-24 00:37:37,237 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 145 [2020-10-24 00:37:37,486 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 145 [2020-10-24 00:37:37,710 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 146 [2020-10-24 00:37:38,063 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 175 [2020-10-24 00:37:38,599 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 210 [2020-10-24 00:37:38,980 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 180 [2020-10-24 00:37:39,201 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 133 [2020-10-24 00:37:39,408 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 133 [2020-10-24 00:37:39,590 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 133 [2020-10-24 00:37:39,902 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 173 [2020-10-24 00:37:40,138 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 171 [2020-10-24 00:37:40,310 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 123 [2020-10-24 00:37:40,435 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 123 [2020-10-24 00:37:40,789 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 175 [2020-10-24 00:37:41,105 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 180 [2020-10-24 00:37:41,440 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 138 [2020-10-24 00:37:41,893 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 147 [2020-10-24 00:37:42,138 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 147 [2020-10-24 00:37:42,390 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 147 [2020-10-24 00:37:42,637 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 114 [2020-10-24 00:37:42,950 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 147 [2020-10-24 00:37:43,282 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 180 [2020-10-24 00:37:43,600 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 145 [2020-10-24 00:37:43,908 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 173 [2020-10-24 00:37:44,061 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 122 [2020-10-24 00:37:44,442 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 123 [2020-10-24 00:37:44,641 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 106 [2020-10-24 00:37:45,035 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 160 [2020-10-24 00:37:45,392 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 160 [2020-10-24 00:37:45,724 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 173 [2020-10-24 00:37:46,214 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 169 [2020-10-24 00:37:46,456 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 145 [2020-10-24 00:37:46,805 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 175 [2020-10-24 00:37:47,025 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 135 [2020-10-24 00:37:47,477 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 173 [2020-10-24 00:37:47,920 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 123 [2020-10-24 00:37:48,382 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 165 [2020-10-24 00:37:48,787 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 160 [2020-10-24 00:37:49,018 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 130 [2020-10-24 00:37:49,194 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 133 [2020-10-24 00:37:49,457 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 160 [2020-10-24 00:37:49,653 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 133 [2020-10-24 00:37:49,762 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 116 [2020-10-24 00:37:50,055 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 145 [2020-10-24 00:37:50,558 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 173 [2020-10-24 00:37:50,876 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 173 [2020-10-24 00:37:51,195 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 165 [2020-10-24 00:37:51,373 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 123 [2020-10-24 00:37:51,502 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 123 [2020-10-24 00:37:52,036 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 138 [2020-10-24 00:37:52,360 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 180 [2020-10-24 00:37:52,558 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 138 [2020-10-24 00:37:52,752 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 138 [2020-10-24 00:37:53,067 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 145 [2020-10-24 00:37:53,314 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 145 [2020-10-24 00:37:53,534 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 146 [2020-10-24 00:37:53,902 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 175 [2020-10-24 00:37:54,482 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 210 [2020-10-24 00:37:54,873 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 180 [2020-10-24 00:37:55,106 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 133 [2020-10-24 00:37:55,319 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 133 [2020-10-24 00:37:55,500 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 133 [2020-10-24 00:37:55,826 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 173 [2020-10-24 00:37:56,063 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 171 [2020-10-24 00:37:56,241 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 123 [2020-10-24 00:37:56,364 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 123 [2020-10-24 00:37:56,715 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 175 [2020-10-24 00:37:57,038 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 180 [2020-10-24 00:37:57,375 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 138 [2020-10-24 00:37:57,825 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 147 [2020-10-24 00:37:58,079 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 147 [2020-10-24 00:37:58,331 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 147 [2020-10-24 00:37:58,579 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 114 [2020-10-24 00:37:58,899 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 147 [2020-10-24 00:37:59,219 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 180 [2020-10-24 00:37:59,536 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 145 [2020-10-24 00:37:59,853 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 173 [2020-10-24 00:38:00,009 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 122 [2020-10-24 00:38:00,319 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 141 [2020-10-24 00:38:00,569 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 148 [2020-10-24 00:38:00,730 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 116 [2020-10-24 00:38:00,923 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 154 [2020-10-24 00:38:01,164 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 148 [2020-10-24 00:38:01,517 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 141 [2020-10-24 00:38:01,728 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 141 [2020-10-24 00:38:02,051 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 148 [2020-10-24 00:38:02,194 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 148 [2020-10-24 00:38:02,801 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 154 [2020-10-24 00:38:02,947 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 112 [2020-10-24 00:38:03,245 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 148 [2020-10-24 00:38:03,502 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 154 [2020-10-24 00:38:04,156 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 148 [2020-10-24 00:38:04,845 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 129 [2020-10-24 00:38:05,084 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 139 [2020-10-24 00:38:05,232 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 107 [2020-10-24 00:38:05,407 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 142 [2020-10-24 00:38:05,626 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 139 [2020-10-24 00:38:05,964 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 129 [2020-10-24 00:38:06,157 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 129 [2020-10-24 00:38:06,473 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 139 [2020-10-24 00:38:06,607 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 139 [2020-10-24 00:38:07,179 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 142 [2020-10-24 00:38:07,321 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 117 [2020-10-24 00:38:07,589 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 139 [2020-10-24 00:38:07,827 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 142 [2020-10-24 00:38:08,629 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 139 [2020-10-24 00:38:11,681 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 12 [2020-10-24 00:38:12,318 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 30 [2020-10-24 00:38:12,964 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 30 [2020-10-24 00:38:13,133 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 1 [2020-10-24 00:38:13,904 WARN L193 SmtUtils]: Spent 762.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 38 [2020-10-24 00:38:14,271 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 10 [2020-10-24 00:38:14,410 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 18 [2020-10-24 00:38:14,765 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 7 [2020-10-24 00:38:14,891 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 14 [2020-10-24 00:38:15,016 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 14 [2020-10-24 00:38:19,182 WARN L193 SmtUtils]: Spent 4.16 s on a formula simplification. DAG size of input: 230 DAG size of output: 76 [2020-10-24 00:38:19,513 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 10 [2020-10-24 00:38:24,422 WARN L193 SmtUtils]: Spent 4.89 s on a formula simplification. DAG size of input: 371 DAG size of output: 59 [2020-10-24 00:38:29,322 WARN L193 SmtUtils]: Spent 4.88 s on a formula simplification. DAG size of input: 371 DAG size of output: 59 [2020-10-24 00:38:38,438 WARN L193 SmtUtils]: Spent 9.10 s on a formula simplification. DAG size of input: 553 DAG size of output: 82 [2020-10-24 00:38:47,684 WARN L193 SmtUtils]: Spent 9.22 s on a formula simplification. DAG size of input: 553 DAG size of output: 82 [2020-10-24 00:38:52,755 WARN L193 SmtUtils]: Spent 5.06 s on a formula simplification. DAG size of input: 333 DAG size of output: 88 [2020-10-24 00:38:53,018 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 3 [2020-10-24 00:38:53,150 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 15 [2020-10-24 00:38:53,487 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 9 [2020-10-24 00:38:57,899 WARN L193 SmtUtils]: Spent 4.40 s on a formula simplification. DAG size of input: 287 DAG size of output: 75 [2020-10-24 00:39:01,651 WARN L193 SmtUtils]: Spent 3.73 s on a formula simplification. DAG size of input: 230 DAG size of output: 76 [2020-10-24 00:39:01,659 INFO L277 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: true [2020-10-24 00:39:01,660 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-24 00:39:01,660 INFO L277 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: true [2020-10-24 00:39:01,663 INFO L277 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: true [2020-10-24 00:39:01,663 INFO L277 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: true [2020-10-24 00:39:01,663 INFO L277 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: true [2020-10-24 00:39:01,663 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-24 00:39:01,663 INFO L277 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: true [2020-10-24 00:39:01,663 INFO L277 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-10-24 00:39:01,664 INFO L277 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2020-10-24 00:39:01,664 INFO L270 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|)) [2020-10-24 00:39:01,664 INFO L277 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: true [2020-10-24 00:39:01,664 INFO L277 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: true [2020-10-24 00:39:01,664 INFO L277 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-10-24 00:39:01,664 INFO L277 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-10-24 00:39:01,664 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-24 00:39:01,664 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-24 00:39:01,673 INFO L277 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-10-24 00:39:01,673 INFO L277 CegarLoopResult]: At program point L29(lines 29 33) the Hoare annotation is: true [2020-10-24 00:39:01,673 INFO L277 CegarLoopResult]: At program point mainEXIT(lines 27 47) the Hoare annotation is: true [2020-10-24 00:39:01,674 INFO L277 CegarLoopResult]: At program point mainFINAL(lines 27 47) the Hoare annotation is: true [2020-10-24 00:39:01,674 INFO L270 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)) [2020-10-24 00:39:01,674 INFO L277 CegarLoopResult]: At program point L34(line 34) the Hoare annotation is: true [2020-10-24 00:39:01,674 INFO L277 CegarLoopResult]: At program point L34-1(line 34) the Hoare annotation is: true [2020-10-24 00:39:01,674 INFO L277 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: true [2020-10-24 00:39:01,674 INFO L277 CegarLoopResult]: At program point L34-2(line 34) the Hoare annotation is: true [2020-10-24 00:39:01,675 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 27 47) the Hoare annotation is: true [2020-10-24 00:39:01,675 INFO L277 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: true [2020-10-24 00:39:01,675 INFO L277 CegarLoopResult]: At program point L28-1(line 28) the Hoare annotation is: true [2020-10-24 00:39:01,675 INFO L270 CegarLoopResult]: At program point L45(line 45) the Hoare annotation is: false [2020-10-24 00:39:01,675 INFO L270 CegarLoopResult]: At program point L45-1(line 45) the Hoare annotation is: false [2020-10-24 00:39:01,675 INFO L277 CegarLoopResult]: At program point L43(line 43) the Hoare annotation is: true [2020-10-24 00:39:01,675 INFO L277 CegarLoopResult]: At program point L41(line 41) the Hoare annotation is: true [2020-10-24 00:39:01,675 INFO L270 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)) [2020-10-24 00:39:01,676 INFO L277 CegarLoopResult]: At program point L39(line 39) the Hoare annotation is: true [2020-10-24 00:39:01,676 INFO L270 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)) [2020-10-24 00:39:01,676 INFO L270 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)) [2020-10-24 00:39:01,676 INFO L277 CegarLoopResult]: At program point L35(lines 35 40) the Hoare annotation is: true [2020-10-24 00:39:01,676 INFO L270 CegarLoopResult]: At program point ackermannEXIT(lines 16 24) the Hoare annotation is: (let ((.cse3 (= ackermann_~n |ackermann_#in~n|)) (.cse5 (= ackermann_~m |ackermann_#in~m|)) (.cse18 (= |ackermann_#in~m| 0))) (let ((.cse0 (<= |ackermann_#in~m| 1)) (.cse4 (<= 1 |ackermann_#in~m|)) (.cse10 (= |ackermann_#in~n| 0)) (.cse6 (<= |ackermann_#res| 3)) (.cse7 (<= 5 |ackermann_#res|)) (.cse1 (<= 1 |ackermann_#in~n|)) (.cse12 (<= |ackermann_#res| 5)) (.cse11 (and .cse3 .cse5 .cse18)) (.cse16 (<= 3 ackermann_~m)) (.cse9 (<= |ackermann_#in~n| 1)) (.cse14 (<= 7 |ackermann_#res|)) (.cse15 (<= |ackermann_#res| 7)) (.cse8 (<= 2 |ackermann_#in~m|)) (.cse13 (<= 3 |ackermann_#in~n|))) (and (let ((.cse2 (<= 3 |ackermann_#res|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse1 .cse7 .cse3 .cse5 .cse8) (not .cse9) (and .cse10 .cse2 .cse3 .cse5 .cse8) (and (<= 2 |ackermann_#res|) .cse0 .cse10 (<= |ackermann_#res| 2) .cse3 .cse5) .cse11)) (or .cse9 (not .cse0) (and (<= |ackermann_#in~n| 3) .cse12 .cse13 .cse7 .cse3 .cse5) (and .cse14 .cse15 (<= 5 |ackermann_#in~n|) .cse3 .cse5) (and (<= |ackermann_#res| 6) (<= 4 |ackermann_#in~n|) (<= 6 |ackermann_#res|) .cse3 .cse5 (<= |ackermann_#in~n| 4)) (and (<= 4 |ackermann_#res|) (<= |ackermann_#in~n| 2) .cse3 .cse5 (<= |ackermann_#res| 4)) (and (<= 6 |ackermann_#in~n|) .cse7 .cse3 .cse5) (not .cse4)) (or (and .cse16 .cse9 .cse7) (and .cse0 .cse4) (and .cse10 (<= |ackermann_#in~m| 2) .cse8 .cse6) (and (<= 2 |ackermann_#in~n|) .cse7 .cse3 .cse5 .cse8) (and .cse9 .cse1 .cse12) .cse11) (or .cse16 .cse9 (and .cse14 .cse15) (not .cse8) .cse13) (or (let ((.cse17 (+ |ackermann_#in~n| 1))) (and (<= .cse17 |ackermann_#res|) (<= |ackermann_#res| .cse17))) (not .cse18))))) [2020-10-24 00:39:01,676 INFO L270 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))) [2020-10-24 00:39:01,677 INFO L270 CegarLoopResult]: At program point L23-1(line 23) the Hoare annotation is: (let ((.cse14 (<= 1 |ackermann_#in~m|)) (.cse13 (<= |ackermann_#in~m| 1))) (let ((.cse0 (<= |ackermann_#t~ret8| 5)) (.cse6 (not .cse13)) (.cse7 (not .cse14)) (.cse2 (<= |ackermann_#t~ret8| 3)) (.cse1 (<= 2 |ackermann_#in~n|)) (.cse5 (<= 5 |ackermann_#t~ret8|)) (.cse4 (<= 3 |ackermann_#in~n|))) (and (let ((.cse3 (<= 1 |ackermann_#in~n|))) (or (and .cse0 .cse1) (and .cse2 .cse3 (<= |ackermann_#in~m| 2)) .cse4 (and (<= 3 ackermann_~m) .cse3 .cse5))) (or .cse6 (<= 5 |ackermann_#in~n|) .cse0 .cse7) (or (and (<= 6 |ackermann_#t~ret8|) (<= |ackermann_#t~ret8| 6)) (<= 6 |ackermann_#in~n|) .cse6 .cse7 (<= |ackermann_#in~n| 4)) (let ((.cse9 (<= 3 |ackermann_#t~ret8|)) (.cse12 (<= 2 |ackermann_#in~m|)) (.cse8 (<= |ackermann_#in~n| 1)) (.cse10 (= ackermann_~n |ackermann_#in~n|)) (.cse11 (= ackermann_~m |ackermann_#in~m|))) (or (and .cse8 .cse9 .cse10 .cse11 .cse12) (and .cse13 .cse2 (<= |ackermann_#in~n| 2) .cse9 .cse1 .cse10 .cse11) (and .cse5 .cse10 .cse11 .cse12) (and .cse8 (<= |ackermann_#t~ret8| 2) .cse13 (<= 2 |ackermann_#t~ret8|) .cse11 .cse10) (and (<= 4 |ackermann_#in~n|) .cse10 .cse5 .cse11) (and .cse13 (<= |ackermann_#in~n| 3) (<= |ackermann_#t~ret8| 4) .cse4 (<= 4 |ackermann_#t~ret8|) .cse10 .cse11))) .cse14))) [2020-10-24 00:39:01,677 INFO L277 CegarLoopResult]: At program point ackermannENTRY(lines 16 24) the Hoare annotation is: true [2020-10-24 00:39:01,677 INFO L270 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))) [2020-10-24 00:39:01,680 INFO L270 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: (let ((.cse14 (<= 1 |ackermann_#in~m|)) (.cse13 (<= |ackermann_#in~m| 1))) (let ((.cse0 (<= |ackermann_#t~ret8| 5)) (.cse6 (not .cse13)) (.cse7 (not .cse14)) (.cse2 (<= |ackermann_#t~ret8| 3)) (.cse1 (<= 2 |ackermann_#in~n|)) (.cse5 (<= 5 |ackermann_#t~ret8|)) (.cse4 (<= 3 |ackermann_#in~n|))) (and (let ((.cse3 (<= 1 |ackermann_#in~n|))) (or (and .cse0 .cse1) (and .cse2 .cse3 (<= |ackermann_#in~m| 2)) .cse4 (and (<= 3 ackermann_~m) .cse3 .cse5))) (or .cse6 (<= 5 |ackermann_#in~n|) .cse0 .cse7) (or (and (<= 6 |ackermann_#t~ret8|) (<= |ackermann_#t~ret8| 6)) (<= 6 |ackermann_#in~n|) .cse6 .cse7 (<= |ackermann_#in~n| 4)) (let ((.cse9 (<= 3 |ackermann_#t~ret8|)) (.cse12 (<= 2 |ackermann_#in~m|)) (.cse8 (<= |ackermann_#in~n| 1)) (.cse10 (= ackermann_~n |ackermann_#in~n|)) (.cse11 (= ackermann_~m |ackermann_#in~m|))) (or (and .cse8 .cse9 .cse10 .cse11 .cse12) (and .cse13 .cse2 (<= |ackermann_#in~n| 2) .cse9 .cse1 .cse10 .cse11) (and .cse5 .cse10 .cse11 .cse12) (and .cse8 (<= |ackermann_#t~ret8| 2) .cse13 (<= 2 |ackermann_#t~ret8|) .cse11 .cse10) (and (<= 4 |ackermann_#in~n|) .cse10 .cse5 .cse11) (and .cse13 (<= |ackermann_#in~n| 3) (<= |ackermann_#t~ret8| 4) .cse4 (<= 4 |ackermann_#t~ret8|) .cse10 .cse11))) .cse14))) [2020-10-24 00:39:01,680 INFO L270 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))) [2020-10-24 00:39:01,680 INFO L270 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: (and (let ((.cse0 (= |ackermann_#in~n| 0)) (.cse1 (= ackermann_~n |ackermann_#in~n|)) (.cse2 (= ackermann_~m |ackermann_#in~m|))) (or (and (<= |ackermann_#in~m| 1) .cse0 .cse1 (<= 2 |ackermann_#t~ret7|) (<= 1 |ackermann_#in~m|) .cse2) (and .cse0 .cse1 .cse2 (<= 3 |ackermann_#t~ret7|)))) (or (and (<= 3 ackermann_~m) (<= 5 |ackermann_#t~ret7|)) (and (<= |ackermann_#in~m| 2) (<= 2 |ackermann_#in~m|) (<= |ackermann_#t~ret7| 3)) (<= |ackermann_#t~ret7| 2))) [2020-10-24 00:39:01,680 INFO L270 CegarLoopResult]: At program point L23-3(line 23) the Hoare annotation is: (let ((.cse2 (<= 2 |ackermann_#in~m|)) (.cse3 (<= |ackermann_#in~m| 1))) (let ((.cse4 (<= 5 |ackermann_#t~ret8|)) (.cse10 (<= 3 |ackermann_#t~ret8|)) (.cse0 (= ackermann_~n |ackermann_#in~n|)) (.cse1 (= ackermann_~m |ackermann_#in~m|)) (.cse6 (<= 5 |ackermann_#t~ret9|)) (.cse12 (<= |ackermann_#t~ret9| 5)) (.cse15 (not .cse3)) (.cse16 (<= 4 |ackermann_#in~n|)) (.cse14 (<= 3 ackermann_~m)) (.cse9 (<= |ackermann_#in~n| 1)) (.cse7 (<= 7 |ackermann_#t~ret9|)) (.cse8 (<= |ackermann_#t~ret9| 7)) (.cse11 (not .cse2)) (.cse17 (<= 3 |ackermann_#in~n|))) (and (let ((.cse5 (<= 1 |ackermann_#in~m|))) (or (and .cse0 .cse1 .cse2) (and .cse3 (<= |ackermann_#t~ret9| 6) (<= |ackermann_#t~ret8| 5) (<= 6 |ackermann_#t~ret9|) .cse4 .cse5 (<= |ackermann_#in~n| 4)) (and (<= 6 |ackermann_#in~n|) .cse6 .cse4 .cse5) (and .cse3 (<= |ackermann_#in~n| 2) .cse5) (and .cse3 (<= |ackermann_#in~n| 3) (<= 4 |ackermann_#t~ret8|) .cse5) (and (<= 6 |ackermann_#t~ret8|) (<= 5 |ackermann_#in~n|) (<= |ackermann_#t~ret8| 6) .cse7 .cse5 .cse8))) (or (and .cse6 .cse4) (and .cse9 .cse10) .cse11) (let ((.cse13 (<= 1 |ackermann_#in~n|))) (or (and .cse6 .cse12 .cse13 (<= |ackermann_#in~m| 2)) (not .cse9) (and (<= |ackermann_#t~ret8| 2) (<= |ackermann_#t~ret9| 3)) (and .cse14 .cse6 .cse13 .cse4))) (or (= |ackermann_#in~n| 1) (and .cse10 .cse0 .cse1)) (or (and .cse9 (<= 2 |ackermann_#t~ret8|) (<= 3 |ackermann_#t~ret9|) .cse0 .cse1) .cse15 .cse16 (and (<= |ackermann_#t~ret8| 3) (<= 4 |ackermann_#t~ret9|)) (and .cse6 .cse12)) (or .cse15 (<= |ackermann_#t~ret9| 4) .cse16 (and (<= |ackermann_#t~ret8| 4) .cse17)) (or .cse14 .cse9 (and .cse7 .cse8) .cse11 .cse17)))) [2020-10-24 00:39:01,680 INFO L270 CegarLoopResult]: At program point L21-2(line 21) the Hoare annotation is: (and (let ((.cse0 (= |ackermann_#in~n| 0)) (.cse1 (= ackermann_~n |ackermann_#in~n|)) (.cse2 (= ackermann_~m |ackermann_#in~m|))) (or (and (<= |ackermann_#in~m| 1) .cse0 .cse1 (<= 2 |ackermann_#t~ret7|) (<= 1 |ackermann_#in~m|) .cse2) (and .cse0 .cse1 .cse2 (<= 3 |ackermann_#t~ret7|)))) (or (and (<= 3 ackermann_~m) (<= 5 |ackermann_#t~ret7|)) (and (<= |ackermann_#in~m| 2) (<= 2 |ackermann_#in~m|) (<= |ackermann_#t~ret7| 3)) (<= |ackermann_#t~ret7| 2))) [2020-10-24 00:39:01,681 INFO L270 CegarLoopResult]: At program point L23-4(line 23) the Hoare annotation is: (let ((.cse2 (<= 2 |ackermann_#in~m|)) (.cse3 (<= |ackermann_#in~m| 1))) (let ((.cse4 (<= 5 |ackermann_#t~ret8|)) (.cse10 (<= 3 |ackermann_#t~ret8|)) (.cse0 (= ackermann_~n |ackermann_#in~n|)) (.cse1 (= ackermann_~m |ackermann_#in~m|)) (.cse6 (<= 5 |ackermann_#t~ret9|)) (.cse12 (<= |ackermann_#t~ret9| 5)) (.cse15 (not .cse3)) (.cse16 (<= 4 |ackermann_#in~n|)) (.cse14 (<= 3 ackermann_~m)) (.cse9 (<= |ackermann_#in~n| 1)) (.cse7 (<= 7 |ackermann_#t~ret9|)) (.cse8 (<= |ackermann_#t~ret9| 7)) (.cse11 (not .cse2)) (.cse17 (<= 3 |ackermann_#in~n|))) (and (let ((.cse5 (<= 1 |ackermann_#in~m|))) (or (and .cse0 .cse1 .cse2) (and .cse3 (<= |ackermann_#t~ret9| 6) (<= |ackermann_#t~ret8| 5) (<= 6 |ackermann_#t~ret9|) .cse4 .cse5 (<= |ackermann_#in~n| 4)) (and (<= 6 |ackermann_#in~n|) .cse6 .cse4 .cse5) (and .cse3 (<= |ackermann_#in~n| 2) .cse5) (and .cse3 (<= |ackermann_#in~n| 3) (<= 4 |ackermann_#t~ret8|) .cse5) (and (<= 6 |ackermann_#t~ret8|) (<= 5 |ackermann_#in~n|) (<= |ackermann_#t~ret8| 6) .cse7 .cse5 .cse8))) (or (and .cse6 .cse4) (and .cse9 .cse10) .cse11) (let ((.cse13 (<= 1 |ackermann_#in~n|))) (or (and .cse6 .cse12 .cse13 (<= |ackermann_#in~m| 2)) (not .cse9) (and (<= |ackermann_#t~ret8| 2) (<= |ackermann_#t~ret9| 3)) (and .cse14 .cse6 .cse13 .cse4))) (or (= |ackermann_#in~n| 1) (and .cse10 .cse0 .cse1)) (or (and .cse9 (<= 2 |ackermann_#t~ret8|) (<= 3 |ackermann_#t~ret9|) .cse0 .cse1) .cse15 .cse16 (and (<= |ackermann_#t~ret8| 3) (<= 4 |ackermann_#t~ret9|)) (and .cse6 .cse12)) (or .cse15 (<= |ackermann_#t~ret9| 4) .cse16 (and (<= |ackermann_#t~ret8| 4) .cse17)) (or .cse14 .cse9 (and .cse7 .cse8) .cse11 .cse17)))) [2020-10-24 00:39:01,681 INFO L270 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)) [2020-10-24 00:39:01,681 INFO L270 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|)) [2020-10-24 00:39:01,681 INFO L270 CegarLoopResult]: At program point L23-5(line 23) the Hoare annotation is: (let ((.cse16 (<= 2 |ackermann_#in~m|))) (let ((.cse7 (not .cse16)) (.cse9 (<= 5 |ackermann_#t~ret8|)) (.cse14 (<= |ackermann_#in~m| 1)) (.cse1 (<= |ackermann_#t~ret9| 5)) (.cse2 (<= |ackermann_#res| 5)) (.cse8 (<= 3 |ackermann_#in~n|)) (.cse3 (<= 7 |ackermann_#res|)) (.cse4 (<= |ackermann_#res| 7)) (.cse5 (<= 7 |ackermann_#t~ret9|)) (.cse6 (<= |ackermann_#t~ret9| 7)) (.cse0 (<= |ackermann_#in~n| 1)) (.cse10 (<= 5 |ackermann_#t~ret9|)) (.cse11 (<= 5 |ackermann_#res|))) (and (or (and .cse0 .cse1 .cse2 (<= |ackermann_#in~m| 2)) (and .cse3 .cse4 .cse5 (<= 2 |ackermann_#in~n|) .cse6) .cse7 .cse8 (and (<= 3 ackermann_~m) .cse9)) (or .cse0 .cse7 (and .cse10 .cse11 .cse9)) (let ((.cse12 (= ackermann_~n |ackermann_#in~n|)) (.cse13 (= ackermann_~m |ackermann_#in~m|))) (or (and .cse10 .cse11 .cse9 .cse12 .cse13) (and .cse0 .cse14 (<= 2 |ackermann_#t~ret8|) (<= 3 |ackermann_#t~ret9|) (<= 3 |ackermann_#res|) .cse12 .cse13) (and .cse10 (<= |ackermann_#in~n| 3) (<= 4 |ackermann_#t~ret8|) .cse11 .cse12 .cse13) (and (<= |ackermann_#in~n| 2) (<= 3 |ackermann_#t~ret8|) .cse12 .cse13))) (or .cse0 (<= 6 |ackermann_#in~n|) (not .cse14) (and (<= |ackermann_#res| 6) (<= 4 |ackermann_#in~n|) (<= |ackermann_#t~ret9| 6) (<= |ackermann_#t~ret8| 5) (<= 6 |ackermann_#t~ret9|) (<= 6 |ackermann_#res|) (<= |ackermann_#in~n| 4)) (and .cse1 .cse2 (<= |ackermann_#t~ret8| 4) .cse8) (and .cse3 (<= 6 |ackermann_#t~ret8|) (<= 5 |ackermann_#in~n|) .cse4 (<= |ackermann_#t~ret8| 6) .cse5 .cse6) (and (<= 4 |ackermann_#res|) (<= |ackermann_#t~ret8| 3) (<= |ackermann_#t~ret9| 4) (<= 4 |ackermann_#t~ret9|) (<= |ackermann_#res| 4))) (let ((.cse15 (<= 1 |ackermann_#in~n|))) (or (not .cse0) (and (<= |ackermann_#t~ret8| 2) .cse15 (<= |ackermann_#t~ret9| 3) (<= |ackermann_#res| 3)) (and .cse10 .cse15 .cse11 .cse16))) (<= 1 |ackermann_#in~m|)))) [2020-10-24 00:39:01,681 INFO L270 CegarLoopResult]: At program point L17(lines 17 19) the Hoare annotation is: (and (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|)) [2020-10-24 00:39:01,682 INFO L270 CegarLoopResult]: At program point L23-6(line 23) the Hoare annotation is: (let ((.cse11 (<= 5 |ackermann_#res|)) (.cse12 (<= 5 |ackermann_#t~ret8|)) (.cse2 (<= |ackermann_#in~m| 1)) (.cse3 (<= 7 |ackermann_#res|)) (.cse4 (<= |ackermann_#res| 7)) (.cse14 (<= 1 |ackermann_#in~m|)) (.cse15 (= ackermann_~m |ackermann_#in~m|)) (.cse13 (= ackermann_~n |ackermann_#in~n|))) (let ((.cse5 (<= 3 |ackermann_#in~n|)) (.cse6 (and .cse2 .cse3 (<= 6 |ackermann_#t~ret8|) (<= 5 |ackermann_#in~n|) .cse4 (<= |ackermann_#t~ret8| 6) .cse14 .cse15 .cse13)) (.cse9 (and (<= 6 |ackermann_#in~n|) .cse2 .cse11 .cse12 .cse13 .cse14 .cse15)) (.cse1 (<= |ackermann_#in~n| 1)) (.cse8 (<= 1 |ackermann_#in~n|)) (.cse10 (<= 2 |ackermann_#in~n|)) (.cse7 (<= |ackermann_#res| 5)) (.cse0 (<= 3 ackermann_~m))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4) .cse5) (or .cse6 (and .cse7 (<= |ackermann_#t~ret8| 4) .cse5) (and .cse1 .cse8 (<= |ackermann_#res| 3)) (not .cse2) .cse9 (and (<= |ackermann_#res| 6) (<= 4 |ackermann_#in~n|) (<= |ackermann_#t~ret8| 5) (<= 6 |ackermann_#res|)) (and (<= 4 |ackermann_#res|) (<= |ackermann_#t~ret8| 3) .cse10 (<= |ackermann_#res| 4))) (let ((.cse16 (<= 3 |ackermann_#t~ret8|))) (or .cse6 (and .cse11 .cse12 .cse13 .cse14 .cse15 (<= |ackermann_#in~n| 4)) (and .cse2 (<= |ackermann_#in~n| 2) .cse16 .cse13 .cse14 .cse15) (and .cse1 .cse16 .cse13 .cse15) .cse9 (and .cse1 .cse2 (<= 2 |ackermann_#t~ret8|) (<= 3 |ackermann_#res|) .cse13 .cse14 .cse15) (and .cse2 (<= |ackermann_#in~n| 3) (<= 4 |ackermann_#t~ret8|) .cse11 .cse13 .cse14 .cse15) (and .cse11 .cse12 .cse13 .cse15 (<= 2 |ackermann_#in~m|)))) (or (<= |ackermann_#t~ret8| 2) (not .cse1) (and .cse8 .cse11)) (or .cse10 (and .cse7 (<= |ackermann_#in~m| 2)) (and .cse0 .cse12))))) [2020-10-24 00:39:01,682 INFO L270 CegarLoopResult]: At program point L16(lines 16 24) the Hoare annotation is: (= ackermann_~m |ackermann_#in~m|) [2020-10-24 00:39:01,682 INFO L270 CegarLoopResult]: At program point ackermannFINAL(lines 16 24) the Hoare annotation is: (let ((.cse12 (= ackermann_~n |ackermann_#in~n|)) (.cse13 (= ackermann_~m |ackermann_#in~m|)) (.cse17 (= |ackermann_#in~m| 0))) (let ((.cse5 (<= |ackermann_#res| 5)) (.cse8 (<= 3 ackermann_~m)) (.cse1 (<= 7 |ackermann_#res|)) (.cse2 (<= |ackermann_#res| 7)) (.cse6 (<= 3 |ackermann_#in~n|)) (.cse7 (<= 1 |ackermann_#in~m|)) (.cse11 (<= |ackermann_#res| 3)) (.cse14 (<= 1 |ackermann_#in~n|)) (.cse4 (<= 5 |ackermann_#res|)) (.cse0 (<= |ackermann_#in~n| 1)) (.cse3 (<= |ackermann_#in~m| 1)) (.cse9 (= |ackermann_#in~n| 0)) (.cse10 (<= 2 |ackermann_#in~m|)) (.cse15 (and .cse12 .cse13 .cse17))) (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 (and .cse8 .cse0 .cse4) (and .cse9 (<= |ackermann_#in~m| 2) .cse10 .cse11) (and (<= 2 |ackermann_#in~n|) .cse4 .cse12 .cse13 .cse10) (and .cse0 .cse14 .cse5) (and .cse3 .cse12 .cse7 .cse13) .cse15) (or .cse8 .cse0 (and .cse1 .cse2) (not .cse10) .cse6) (or (let ((.cse16 (+ |ackermann_#in~n| 1))) (and (<= .cse16 |ackermann_#res|) (<= |ackermann_#res| .cse16))) (not .cse17)) (let ((.cse18 (<= 3 |ackermann_#res|))) (or (and .cse3 .cse14 .cse18 .cse12 .cse7 .cse13 .cse11) (and .cse14 .cse4 .cse12 .cse13 .cse10) (not .cse0) (and (<= 2 |ackermann_#res|) .cse3 .cse9 (<= |ackermann_#res| 2)) (and .cse9 .cse18 .cse12 .cse13 .cse10) .cse15))))) [2020-10-24 00:39:01,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:39:01 BoogieIcfgContainer [2020-10-24 00:39:01,706 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 00:39:01,707 INFO L168 Benchmark]: Toolchain (without parser) took 180648.60 ms. Allocated memory was 152.0 MB in the beginning and 791.7 MB in the end (delta: 639.6 MB). Free memory was 128.6 MB in the beginning and 482.3 MB in the end (delta: -353.7 MB). Peak memory consumption was 490.9 MB. Max. memory is 8.0 GB. [2020-10-24 00:39:01,708 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory was 105.2 MB in the beginning and 105.1 MB in the end (delta: 69.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 00:39:01,708 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.17 ms. Allocated memory is still 152.0 MB. Free memory was 128.0 MB in the beginning and 118.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-24 00:39:01,709 INFO L168 Benchmark]: Boogie Preprocessor took 33.69 ms. Allocated memory is still 152.0 MB. Free memory was 118.7 MB in the beginning and 117.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-24 00:39:01,709 INFO L168 Benchmark]: RCFGBuilder took 540.56 ms. Allocated memory is still 152.0 MB. Free memory was 117.2 MB in the beginning and 132.5 MB in the end (delta: -15.2 MB). Peak memory consumption was 15.9 MB. Max. memory is 8.0 GB. [2020-10-24 00:39:01,709 INFO L168 Benchmark]: TraceAbstraction took 179825.59 ms. Allocated memory was 152.0 MB in the beginning and 791.7 MB in the end (delta: 639.6 MB). Free memory was 132.0 MB in the beginning and 482.3 MB in the end (delta: -350.3 MB). Peak memory consumption was 493.8 MB. Max. memory is 8.0 GB. [2020-10-24 00:39:01,711 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory was 105.2 MB in the beginning and 105.1 MB in the end (delta: 69.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 237.17 ms. Allocated memory is still 152.0 MB. Free memory was 128.0 MB in the beginning and 118.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 33.69 ms. Allocated memory is still 152.0 MB. Free memory was 118.7 MB in the beginning and 117.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 540.56 ms. Allocated memory is still 152.0 MB. Free memory was 117.2 MB in the beginning and 132.5 MB in the end (delta: -15.2 MB). Peak memory consumption was 15.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 179825.59 ms. Allocated memory was 152.0 MB in the beginning and 791.7 MB in the end (delta: 639.6 MB). Free memory was 132.0 MB in the beginning and 482.3 MB in the end (delta: -350.3 MB). Peak memory consumption was 493.8 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(m) <= 1 && 1 <= \old(n)) && 3 <= \result) && n == \old(n)) && 1 <= \old(m)) && m == \old(m)) && \result <= 3) || ((((1 <= \old(n) && 5 <= \result) && n == \old(n)) && m == \old(m)) && 2 <= \old(m))) || !(\old(n) <= 1)) || ((((\old(n) == 0 && 3 <= \result) && n == \old(n)) && m == \old(m)) && 2 <= \old(m))) || (((((2 <= \result && \old(m) <= 1) && \old(n) == 0) && \result <= 2) && n == \old(n)) && m == \old(m))) || ((n == \old(n) && m == \old(m)) && \old(m) == 0)) && (((((((\old(n) <= 1 || !(\old(m) <= 1)) || (((((\old(n) <= 3 && \result <= 5) && 3 <= \old(n)) && 5 <= \result) && n == \old(n)) && m == \old(m))) || ((((7 <= \result && \result <= 7) && 5 <= \old(n)) && n == \old(n)) && m == \old(m))) || (((((\result <= 6 && 4 <= \old(n)) && 6 <= \result) && n == \old(n)) && m == \old(m)) && \old(n) <= 4)) || ((((4 <= \result && \old(n) <= 2) && n == \old(n)) && m == \old(m)) && \result <= 4)) || (((6 <= \old(n) && 5 <= \result) && n == \old(n)) && m == \old(m))) || !(1 <= \old(m)))) && (((((((3 <= m && \old(n) <= 1) && 5 <= \result) || (\old(m) <= 1 && 1 <= \old(m))) || (((\old(n) == 0 && \old(m) <= 2) && 2 <= \old(m)) && \result <= 3)) || ((((2 <= \old(n) && 5 <= \result) && n == \old(n)) && m == \old(m)) && 2 <= \old(m))) || ((\old(n) <= 1 && 1 <= \old(n)) && \result <= 5)) || ((n == \old(n) && m == \old(m)) && \old(m) == 0))) && ((((3 <= m || \old(n) <= 1) || (7 <= \result && \result <= 7)) || !(2 <= \old(m))) || 3 <= \old(n))) && ((\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: 56.0s, OverallIterations: 16, TraceHistogramMax: 43, AutomataDifference: 42.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 123.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 954 SDtfs, 2278 SDslu, 1833 SDs, 0 SdLazy, 11483 SolverSat, 1854 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1544 GetRequests, 839 SyntacticMatches, 0 SemanticMatches, 705 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12289 ImplicationChecksByTransitivity, 31.9s 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, 483 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 56 LocationsWithAnnotation, 4778 PreInvPairs, 24744 NumberOfFragments, 2342 HoareAnnotationTreeSize, 4778 FomulaSimplifications, 216975873 FormulaSimplificationTreeSizeReduction, 73.2s HoareSimplificationTime, 56 FomulaSimplificationsInter, 9742585 FormulaSimplificationTreeSizeReductionInter, 50.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 10.1s InterpolantComputationTime, 3597 NumberOfCodeBlocks, 3597 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3581 ConstructedInterpolants, 0 QuantifiedInterpolants, 1964955 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 1 PerfectInterpolantSequences, 24668/32402 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...