/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:40:40,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:40:40,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:40:40,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 00:40:40,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:40:40,894 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:40:40,895 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:40:40,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:40:40,897 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:40:40,898 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:40:40,900 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:40:40,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:40:40,905 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:40:40,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:40:40,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:40:40,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:40:40,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 00:40:40,927 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 00:40:40,946 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:40:40,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:40:40,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:40:40,952 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:40:40,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:40:40,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:40:40,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:40:40,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:40:40,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:40:40,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:40:40,954 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:40:40,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:40:40,955 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:40:40,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:40:40,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:40:40,956 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:40:40,956 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:40:40,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:40:40,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:40:40,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:40:40,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:40:40,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:40:40,957 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:40:41,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:40:41,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:40:41,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:40:41,485 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:40:41,485 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:40:41,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c [2020-11-07 00:40:41,586 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73c627a23/656c054e447b4f67af61b16dd8ed5388/FLAGd621a242b [2020-11-07 00:40:42,352 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:40:42,352 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c [2020-11-07 00:40:42,361 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73c627a23/656c054e447b4f67af61b16dd8ed5388/FLAGd621a242b [2020-11-07 00:40:42,748 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73c627a23/656c054e447b4f67af61b16dd8ed5388 [2020-11-07 00:40:42,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:40:42,764 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:40:42,769 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:40:42,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:40:42,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:40:42,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:40:42" (1/1) ... [2020-11-07 00:40:42,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39d4b374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:40:42, skipping insertion in model container [2020-11-07 00:40:42,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:40:42" (1/1) ... [2020-11-07 00:40:42,789 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:40:42,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:40:43,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:40:43,087 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:40:43,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:40:43,135 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:40:43,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:40:43 WrapperNode [2020-11-07 00:40:43,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:40:43,139 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:40:43,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:40:43,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:40:43,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:40:43" (1/1) ... [2020-11-07 00:40:43,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:40:43" (1/1) ... [2020-11-07 00:40:43,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:40:43" (1/1) ... [2020-11-07 00:40:43,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:40:43" (1/1) ... [2020-11-07 00:40:43,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:40:43" (1/1) ... [2020-11-07 00:40:43,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:40:43" (1/1) ... [2020-11-07 00:40:43,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:40:43" (1/1) ... [2020-11-07 00:40:43,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:40:43,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:40:43,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:40:43,195 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:40:43,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:40:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:40:43,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:40:43,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:40:43,275 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:40:43,275 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-11-07 00:40:43,275 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-11-07 00:40:43,276 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:40:43,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:40:43,276 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:40:43,276 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:40:43,276 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:40:43,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:40:43,277 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-11-07 00:40:43,277 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-11-07 00:40:43,277 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:40:43,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:40:43,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:40:43,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:40:43,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:40:43,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:40:43,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:40:43,574 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:40:43,575 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-07 00:40:43,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:40:43 BoogieIcfgContainer [2020-11-07 00:40:43,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:40:43,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:40:43,580 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:40:43,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:40:43,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:40:42" (1/3) ... [2020-11-07 00:40:43,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e8dc692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:40:43, skipping insertion in model container [2020-11-07 00:40:43,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:40:43" (2/3) ... [2020-11-07 00:40:43,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e8dc692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:40:43, skipping insertion in model container [2020-11-07 00:40:43,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:40:43" (3/3) ... [2020-11-07 00:40:43,588 INFO L111 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-1.c [2020-11-07 00:40:43,608 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:40:43,613 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 00:40:43,637 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 00:40:43,709 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:40:43,710 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:40:43,710 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:40:43,710 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:40:43,710 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:40:43,710 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:40:43,711 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:40:43,711 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:40:43,753 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2020-11-07 00:40:43,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-07 00:40:43,763 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:40:43,764 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] [2020-11-07 00:40:43,764 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:40:43,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:40:43,771 INFO L82 PathProgramCache]: Analyzing trace with hash 775886402, now seen corresponding path program 1 times [2020-11-07 00:40:43,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:40:43,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [554747633] [2020-11-07 00:40:43,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:40:43,867 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:40:43,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:44,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:40:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:44,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 00:40:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:44,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:40:44,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [554747633] [2020-11-07 00:40:44,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:40:44,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:40:44,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713837449] [2020-11-07 00:40:44,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:40:44,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:40:44,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:40:44,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:40:44,172 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 6 states. [2020-11-07 00:40:44,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:40:44,592 INFO L93 Difference]: Finished difference Result 71 states and 81 transitions. [2020-11-07 00:40:44,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 00:40:44,595 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-11-07 00:40:44,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:40:44,607 INFO L225 Difference]: With dead ends: 71 [2020-11-07 00:40:44,607 INFO L226 Difference]: Without dead ends: 51 [2020-11-07 00:40:44,611 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:40:44,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-11-07 00:40:44,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-11-07 00:40:44,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-11-07 00:40:44,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2020-11-07 00:40:44,692 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 25 [2020-11-07 00:40:44,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:40:44,693 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2020-11-07 00:40:44,693 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:40:44,693 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2020-11-07 00:40:44,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-07 00:40:44,696 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:40:44,697 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] [2020-11-07 00:40:44,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:40:44,698 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:40:44,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:40:44,699 INFO L82 PathProgramCache]: Analyzing trace with hash 478831265, now seen corresponding path program 1 times [2020-11-07 00:40:44,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:40:44,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [724170180] [2020-11-07 00:40:44,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:40:44,704 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:40:44,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:44,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:40:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:44,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 00:40:44,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:44,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:40:44,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [724170180] [2020-11-07 00:40:44,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:40:44,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:40:44,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674433147] [2020-11-07 00:40:44,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:40:44,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:40:44,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:40:44,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:40:44,845 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand 6 states. [2020-11-07 00:40:45,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:40:45,192 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2020-11-07 00:40:45,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 00:40:45,193 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-11-07 00:40:45,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:40:45,195 INFO L225 Difference]: With dead ends: 60 [2020-11-07 00:40:45,196 INFO L226 Difference]: Without dead ends: 53 [2020-11-07 00:40:45,197 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:40:45,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-11-07 00:40:45,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2020-11-07 00:40:45,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-11-07 00:40:45,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2020-11-07 00:40:45,217 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 26 [2020-11-07 00:40:45,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:40:45,217 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2020-11-07 00:40:45,218 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:40:45,218 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2020-11-07 00:40:45,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-07 00:40:45,220 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:40:45,220 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:40:45,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:40:45,221 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:40:45,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:40:45,221 INFO L82 PathProgramCache]: Analyzing trace with hash -708858972, now seen corresponding path program 1 times [2020-11-07 00:40:45,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:40:45,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179897806] [2020-11-07 00:40:45,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:40:45,225 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:40:45,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:45,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:40:45,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:45,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 00:40:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:45,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:45,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:45,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-07 00:40:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:45,373 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-07 00:40:45,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1179897806] [2020-11-07 00:40:45,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:40:45,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 00:40:45,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491159527] [2020-11-07 00:40:45,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 00:40:45,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:40:45,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 00:40:45,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-07 00:40:45,376 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand 7 states. [2020-11-07 00:40:45,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:40:45,688 INFO L93 Difference]: Finished difference Result 92 states and 112 transitions. [2020-11-07 00:40:45,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-07 00:40:45,689 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2020-11-07 00:40:45,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:40:45,691 INFO L225 Difference]: With dead ends: 92 [2020-11-07 00:40:45,691 INFO L226 Difference]: Without dead ends: 55 [2020-11-07 00:40:45,692 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-11-07 00:40:45,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-11-07 00:40:45,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2020-11-07 00:40:45,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-11-07 00:40:45,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2020-11-07 00:40:45,708 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 42 [2020-11-07 00:40:45,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:40:45,709 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2020-11-07 00:40:45,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 00:40:45,709 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2020-11-07 00:40:45,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-07 00:40:45,711 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:40:45,711 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-07 00:40:45,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:40:45,712 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:40:45,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:40:45,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1629720462, now seen corresponding path program 1 times [2020-11-07 00:40:45,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:40:45,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [383458347] [2020-11-07 00:40:45,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:40:45,716 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:40:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:45,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:40:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:45,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 00:40:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:45,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:45,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:45,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:40:45,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:45,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-07 00:40:45,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [383458347] [2020-11-07 00:40:45,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:40:45,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-07 00:40:45,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963098324] [2020-11-07 00:40:45,944 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 00:40:45,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:40:45,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 00:40:45,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-11-07 00:40:45,946 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand 8 states. [2020-11-07 00:40:46,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:40:46,648 INFO L93 Difference]: Finished difference Result 84 states and 104 transitions. [2020-11-07 00:40:46,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 00:40:46,649 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-11-07 00:40:46,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:40:46,653 INFO L225 Difference]: With dead ends: 84 [2020-11-07 00:40:46,653 INFO L226 Difference]: Without dead ends: 77 [2020-11-07 00:40:46,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2020-11-07 00:40:46,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-11-07 00:40:46,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 75. [2020-11-07 00:40:46,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-11-07 00:40:46,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 92 transitions. [2020-11-07 00:40:46,677 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 92 transitions. Word has length 43 [2020-11-07 00:40:46,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:40:46,677 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 92 transitions. [2020-11-07 00:40:46,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 00:40:46,678 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 92 transitions. [2020-11-07 00:40:46,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-07 00:40:46,681 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:40:46,681 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:40:46,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:40:46,682 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:40:46,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:40:46,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1688308117, now seen corresponding path program 1 times [2020-11-07 00:40:46,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:40:46,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1212733] [2020-11-07 00:40:46,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:40:46,699 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:40:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:46,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:40:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:46,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 00:40:46,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:46,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:46,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:46,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:46,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-07 00:40:46,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:46,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-11-07 00:40:46,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:46,845 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-07 00:40:46,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1212733] [2020-11-07 00:40:46,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:40:46,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 00:40:46,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792383663] [2020-11-07 00:40:46,847 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 00:40:46,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:40:46,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 00:40:46,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-07 00:40:46,848 INFO L87 Difference]: Start difference. First operand 75 states and 92 transitions. Second operand 7 states. [2020-11-07 00:40:47,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:40:47,271 INFO L93 Difference]: Finished difference Result 140 states and 188 transitions. [2020-11-07 00:40:47,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-07 00:40:47,271 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 59 [2020-11-07 00:40:47,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:40:47,274 INFO L225 Difference]: With dead ends: 140 [2020-11-07 00:40:47,274 INFO L226 Difference]: Without dead ends: 79 [2020-11-07 00:40:47,276 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-11-07 00:40:47,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-11-07 00:40:47,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-11-07 00:40:47,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-11-07 00:40:47,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 98 transitions. [2020-11-07 00:40:47,301 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 98 transitions. Word has length 59 [2020-11-07 00:40:47,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:40:47,302 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 98 transitions. [2020-11-07 00:40:47,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 00:40:47,302 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 98 transitions. [2020-11-07 00:40:47,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-11-07 00:40:47,305 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:40:47,306 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:40:47,306 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:40:47,306 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:40:47,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:40:47,307 INFO L82 PathProgramCache]: Analyzing trace with hash -439427312, now seen corresponding path program 1 times [2020-11-07 00:40:47,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:40:47,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1020701071] [2020-11-07 00:40:47,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:40:47,310 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:40:47,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:47,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:40:47,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:47,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 00:40:47,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:47,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:47,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:47,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:40:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:47,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:40:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:47,513 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-07 00:40:47,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1020701071] [2020-11-07 00:40:47,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:40:47,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-07 00:40:47,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399196315] [2020-11-07 00:40:47,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 00:40:47,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:40:47,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 00:40:47,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-11-07 00:40:47,519 INFO L87 Difference]: Start difference. First operand 79 states and 98 transitions. Second operand 8 states. [2020-11-07 00:40:48,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:40:48,117 INFO L93 Difference]: Finished difference Result 152 states and 207 transitions. [2020-11-07 00:40:48,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-07 00:40:48,120 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 60 [2020-11-07 00:40:48,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:40:48,123 INFO L225 Difference]: With dead ends: 152 [2020-11-07 00:40:48,123 INFO L226 Difference]: Without dead ends: 87 [2020-11-07 00:40:48,125 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-11-07 00:40:48,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-11-07 00:40:48,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 81. [2020-11-07 00:40:48,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-11-07 00:40:48,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 101 transitions. [2020-11-07 00:40:48,152 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 101 transitions. Word has length 60 [2020-11-07 00:40:48,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:40:48,152 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 101 transitions. [2020-11-07 00:40:48,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 00:40:48,153 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 101 transitions. [2020-11-07 00:40:48,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-11-07 00:40:48,155 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:40:48,156 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:40:48,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 00:40:48,156 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:40:48,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:40:48,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1841264646, now seen corresponding path program 1 times [2020-11-07 00:40:48,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:40:48,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1294809378] [2020-11-07 00:40:48,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:40:48,159 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:40:48,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:48,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:40:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:48,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 00:40:48,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:48,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:48,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:48,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:48,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:48,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:40:48,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:48,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:40:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:48,329 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-07 00:40:48,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1294809378] [2020-11-07 00:40:48,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:40:48,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:40:48,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006797810] [2020-11-07 00:40:48,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:40:48,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:40:48,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:40:48,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:40:48,333 INFO L87 Difference]: Start difference. First operand 81 states and 101 transitions. Second operand 9 states. [2020-11-07 00:40:49,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:40:49,144 INFO L93 Difference]: Finished difference Result 128 states and 168 transitions. [2020-11-07 00:40:49,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 00:40:49,145 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2020-11-07 00:40:49,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:40:49,149 INFO L225 Difference]: With dead ends: 128 [2020-11-07 00:40:49,150 INFO L226 Difference]: Without dead ends: 121 [2020-11-07 00:40:49,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2020-11-07 00:40:49,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-11-07 00:40:49,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 115. [2020-11-07 00:40:49,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-07 00:40:49,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 154 transitions. [2020-11-07 00:40:49,190 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 154 transitions. Word has length 61 [2020-11-07 00:40:49,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:40:49,191 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 154 transitions. [2020-11-07 00:40:49,191 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:40:49,191 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 154 transitions. [2020-11-07 00:40:49,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-11-07 00:40:49,193 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:40:49,194 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:40:49,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-07 00:40:49,194 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:40:49,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:40:49,195 INFO L82 PathProgramCache]: Analyzing trace with hash 942662771, now seen corresponding path program 1 times [2020-11-07 00:40:49,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:40:49,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [924373608] [2020-11-07 00:40:49,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:40:49,197 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:40:49,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:49,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:40:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:49,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 00:40:49,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:49,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:49,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:49,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:49,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:40:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:49,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:40:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:49,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-11-07 00:40:49,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:49,444 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-07 00:40:49,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [924373608] [2020-11-07 00:40:49,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:40:49,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:40:49,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056529840] [2020-11-07 00:40:49,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:40:49,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:40:49,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:40:49,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:40:49,453 INFO L87 Difference]: Start difference. First operand 115 states and 154 transitions. Second operand 9 states. [2020-11-07 00:40:50,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:40:50,131 INFO L93 Difference]: Finished difference Result 237 states and 358 transitions. [2020-11-07 00:40:50,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 00:40:50,135 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-11-07 00:40:50,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:40:50,139 INFO L225 Difference]: With dead ends: 237 [2020-11-07 00:40:50,142 INFO L226 Difference]: Without dead ends: 136 [2020-11-07 00:40:50,144 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2020-11-07 00:40:50,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-11-07 00:40:50,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 124. [2020-11-07 00:40:50,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-11-07 00:40:50,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 170 transitions. [2020-11-07 00:40:50,183 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 170 transitions. Word has length 78 [2020-11-07 00:40:50,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:40:50,183 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 170 transitions. [2020-11-07 00:40:50,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:40:50,184 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 170 transitions. [2020-11-07 00:40:50,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-11-07 00:40:50,186 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:40:50,186 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:40:50,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-07 00:40:50,186 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:40:50,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:40:50,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1118264142, now seen corresponding path program 1 times [2020-11-07 00:40:50,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:40:50,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [909128477] [2020-11-07 00:40:50,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:40:50,190 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:40:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:50,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:40:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:50,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 00:40:50,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:50,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:50,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:50,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:50,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:50,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:40:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:50,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:40:50,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:50,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:40:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:50,410 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-07 00:40:50,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [909128477] [2020-11-07 00:40:50,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:40:50,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 00:40:50,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550474660] [2020-11-07 00:40:50,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 00:40:50,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:40:50,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 00:40:50,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-11-07 00:40:50,413 INFO L87 Difference]: Start difference. First operand 124 states and 170 transitions. Second operand 10 states. [2020-11-07 00:40:51,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:40:51,215 INFO L93 Difference]: Finished difference Result 267 states and 410 transitions. [2020-11-07 00:40:51,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 00:40:51,219 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 79 [2020-11-07 00:40:51,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:40:51,222 INFO L225 Difference]: With dead ends: 267 [2020-11-07 00:40:51,222 INFO L226 Difference]: Without dead ends: 160 [2020-11-07 00:40:51,226 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2020-11-07 00:40:51,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-11-07 00:40:51,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 142. [2020-11-07 00:40:51,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-11-07 00:40:51,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 200 transitions. [2020-11-07 00:40:51,302 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 200 transitions. Word has length 79 [2020-11-07 00:40:51,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:40:51,303 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 200 transitions. [2020-11-07 00:40:51,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 00:40:51,303 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 200 transitions. [2020-11-07 00:40:51,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-11-07 00:40:51,308 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:40:51,308 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:40:51,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-07 00:40:51,309 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:40:51,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:40:51,309 INFO L82 PathProgramCache]: Analyzing trace with hash 693727952, now seen corresponding path program 1 times [2020-11-07 00:40:51,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:40:51,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1642964104] [2020-11-07 00:40:51,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:40:51,313 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:40:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:51,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:40:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:51,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 00:40:51,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:51,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:51,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:51,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:51,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:51,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:51,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:40:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:51,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:40:51,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:51,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:40:51,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:51,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:51,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:51,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:40:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:51,596 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-11-07 00:40:51,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1642964104] [2020-11-07 00:40:51,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:40:51,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 00:40:51,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882110127] [2020-11-07 00:40:51,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 00:40:51,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:40:51,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 00:40:51,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 00:40:51,599 INFO L87 Difference]: Start difference. First operand 142 states and 200 transitions. Second operand 10 states. [2020-11-07 00:40:52,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:40:52,571 INFO L93 Difference]: Finished difference Result 223 states and 325 transitions. [2020-11-07 00:40:52,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-07 00:40:52,575 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 96 [2020-11-07 00:40:52,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:40:52,580 INFO L225 Difference]: With dead ends: 223 [2020-11-07 00:40:52,581 INFO L226 Difference]: Without dead ends: 216 [2020-11-07 00:40:52,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2020-11-07 00:40:52,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2020-11-07 00:40:52,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 210. [2020-11-07 00:40:52,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-11-07 00:40:52,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 311 transitions. [2020-11-07 00:40:52,637 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 311 transitions. Word has length 96 [2020-11-07 00:40:52,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:40:52,638 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 311 transitions. [2020-11-07 00:40:52,638 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 00:40:52,638 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 311 transitions. [2020-11-07 00:40:52,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-11-07 00:40:52,643 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:40:52,643 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:40:52,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-07 00:40:52,644 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:40:52,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:40:52,644 INFO L82 PathProgramCache]: Analyzing trace with hash -375801608, now seen corresponding path program 2 times [2020-11-07 00:40:52,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:40:52,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [373252570] [2020-11-07 00:40:52,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:40:52,647 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:40:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:52,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:40:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:52,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 00:40:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:52,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:52,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:52,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:52,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:52,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:52,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:40:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:52,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:40:52,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:52,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:40:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:52,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-07 00:40:52,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:52,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:52,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:52,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:52,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:52,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:40:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:52,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:40:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:52,920 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-07 00:40:52,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [373252570] [2020-11-07 00:40:52,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:40:52,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 00:40:52,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976231673] [2020-11-07 00:40:52,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 00:40:52,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:40:52,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 00:40:52,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-11-07 00:40:52,922 INFO L87 Difference]: Start difference. First operand 210 states and 311 transitions. Second operand 10 states. [2020-11-07 00:40:53,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:40:53,755 INFO L93 Difference]: Finished difference Result 455 states and 768 transitions. [2020-11-07 00:40:53,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 00:40:53,756 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 132 [2020-11-07 00:40:53,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:40:53,762 INFO L225 Difference]: With dead ends: 455 [2020-11-07 00:40:53,762 INFO L226 Difference]: Without dead ends: 262 [2020-11-07 00:40:53,766 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2020-11-07 00:40:53,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-11-07 00:40:53,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 232. [2020-11-07 00:40:53,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-11-07 00:40:53,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 359 transitions. [2020-11-07 00:40:53,847 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 359 transitions. Word has length 132 [2020-11-07 00:40:53,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:40:53,848 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 359 transitions. [2020-11-07 00:40:53,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 00:40:53,848 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 359 transitions. [2020-11-07 00:40:53,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-11-07 00:40:53,853 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:40:53,854 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-07 00:40:53,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-07 00:40:53,854 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:40:53,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:40:53,856 INFO L82 PathProgramCache]: Analyzing trace with hash -139933889, now seen corresponding path program 3 times [2020-11-07 00:40:53,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:40:53,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2146378066] [2020-11-07 00:40:53,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:40:53,862 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:40:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:53,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:40:53,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:53,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 00:40:53,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:54,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:54,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:54,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:54,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:54,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:40:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:54,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:40:54,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:54,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:40:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:54,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:54,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:40:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:54,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:40:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:54,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:54,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:54,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:54,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:40:54,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:54,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:40:54,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:54,256 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2020-11-07 00:40:54,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2146378066] [2020-11-07 00:40:54,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:40:54,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-07 00:40:54,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353476180] [2020-11-07 00:40:54,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-07 00:40:54,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:40:54,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-07 00:40:54,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-11-07 00:40:54,258 INFO L87 Difference]: Start difference. First operand 232 states and 359 transitions. Second operand 11 states. [2020-11-07 00:40:55,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:40:55,350 INFO L93 Difference]: Finished difference Result 359 states and 571 transitions. [2020-11-07 00:40:55,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-07 00:40:55,351 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 149 [2020-11-07 00:40:55,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:40:55,358 INFO L225 Difference]: With dead ends: 359 [2020-11-07 00:40:55,358 INFO L226 Difference]: Without dead ends: 352 [2020-11-07 00:40:55,361 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2020-11-07 00:40:55,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2020-11-07 00:40:55,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 340. [2020-11-07 00:40:55,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-11-07 00:40:55,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 550 transitions. [2020-11-07 00:40:55,469 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 550 transitions. Word has length 149 [2020-11-07 00:40:55,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:40:55,469 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 550 transitions. [2020-11-07 00:40:55,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-07 00:40:55,469 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 550 transitions. [2020-11-07 00:40:55,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-11-07 00:40:55,478 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:40:55,478 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 10, 10, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2020-11-07 00:40:55,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-07 00:40:55,479 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:40:55,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:40:55,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1947600562, now seen corresponding path program 4 times [2020-11-07 00:40:55,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:40:55,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1315323356] [2020-11-07 00:40:55,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:40:55,483 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:40:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:55,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:40:55,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:55,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 00:40:55,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:55,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:55,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:55,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:55,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:55,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:55,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:55,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:55,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:55,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:55,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:40:55,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:55,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:40:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:55,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:40:55,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:55,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:55,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:40:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:55,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:40:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:55,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:55,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:55,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:55,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:40:55,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:55,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:40:55,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:55,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:55,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:55,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:40:55,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:55,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-11-07 00:40:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:55,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:55,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:55,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:40:55,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:55,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:40:55,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:56,060 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 21 proven. 39 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2020-11-07 00:40:56,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1315323356] [2020-11-07 00:40:56,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:40:56,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-11-07 00:40:56,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49548568] [2020-11-07 00:40:56,062 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-07 00:40:56,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:40:56,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-07 00:40:56,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-11-07 00:40:56,063 INFO L87 Difference]: Start difference. First operand 340 states and 550 transitions. Second operand 14 states. [2020-11-07 00:40:57,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:40:57,979 INFO L93 Difference]: Finished difference Result 903 states and 1686 transitions. [2020-11-07 00:40:57,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-11-07 00:40:57,980 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 220 [2020-11-07 00:40:57,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:40:57,991 INFO L225 Difference]: With dead ends: 903 [2020-11-07 00:40:57,991 INFO L226 Difference]: Without dead ends: 554 [2020-11-07 00:40:58,000 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2020-11-07 00:40:58,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2020-11-07 00:40:58,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 461. [2020-11-07 00:40:58,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-11-07 00:40:58,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 689 transitions. [2020-11-07 00:40:58,131 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 689 transitions. Word has length 220 [2020-11-07 00:40:58,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:40:58,131 INFO L481 AbstractCegarLoop]: Abstraction has 461 states and 689 transitions. [2020-11-07 00:40:58,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-07 00:40:58,132 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 689 transitions. [2020-11-07 00:40:58,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-11-07 00:40:58,142 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:40:58,142 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 13, 12, 12, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2020-11-07 00:40:58,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-07 00:40:58,143 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:40:58,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:40:58,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1022217775, now seen corresponding path program 5 times [2020-11-07 00:40:58,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:40:58,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1857461918] [2020-11-07 00:40:58,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:40:58,156 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:40:58,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:40:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 00:40:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:58,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:58,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:40:58,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:40:58,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:40:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:58,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:40:58,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:40:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:40:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:40:58,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 00:40:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:58,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:58,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:40:58,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:40:58,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:40:58,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:58,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:40:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:40:58,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:40:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:40:58,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:40:58,790 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2020-11-07 00:40:58,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1857461918] [2020-11-07 00:40:58,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:40:58,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-07 00:40:58,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939871658] [2020-11-07 00:40:58,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-07 00:40:58,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:40:58,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-07 00:40:58,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-11-07 00:40:58,793 INFO L87 Difference]: Start difference. First operand 461 states and 689 transitions. Second operand 12 states. [2020-11-07 00:41:00,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:41:00,058 INFO L93 Difference]: Finished difference Result 750 states and 1162 transitions. [2020-11-07 00:41:00,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-07 00:41:00,059 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 273 [2020-11-07 00:41:00,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:41:00,074 INFO L225 Difference]: With dead ends: 750 [2020-11-07 00:41:00,074 INFO L226 Difference]: Without dead ends: 743 [2020-11-07 00:41:00,077 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=126, Invalid=524, Unknown=0, NotChecked=0, Total=650 [2020-11-07 00:41:00,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2020-11-07 00:41:00,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 731. [2020-11-07 00:41:00,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 731 states. [2020-11-07 00:41:00,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 1135 transitions. [2020-11-07 00:41:00,241 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 1135 transitions. Word has length 273 [2020-11-07 00:41:00,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:41:00,242 INFO L481 AbstractCegarLoop]: Abstraction has 731 states and 1135 transitions. [2020-11-07 00:41:00,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-07 00:41:00,242 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 1135 transitions. [2020-11-07 00:41:00,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2020-11-07 00:41:00,262 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:41:00,263 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 26, 26, 25, 22, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 8, 8, 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] [2020-11-07 00:41:00,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-07 00:41:00,263 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:41:00,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:41:00,264 INFO L82 PathProgramCache]: Analyzing trace with hash 837951302, now seen corresponding path program 6 times [2020-11-07 00:41:00,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:41:00,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [47925027] [2020-11-07 00:41:00,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:41:00,269 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:41:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:41:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 00:41:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:00,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:00,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:00,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:00,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:00,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:00,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:00,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-11-07 00:41:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:00,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:00,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:00,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:00,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:00,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-11-07 00:41:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:01,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:01,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:01,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:01,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:01,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:01,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:01,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:01,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-11-07 00:41:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:01,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:01,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:01,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:01,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:01,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:01,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:01,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:01,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 8 proven. 198 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2020-11-07 00:41:01,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [47925027] [2020-11-07 00:41:01,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:41:01,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-07 00:41:01,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505087375] [2020-11-07 00:41:01,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-07 00:41:01,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:41:01,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-07 00:41:01,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-11-07 00:41:01,628 INFO L87 Difference]: Start difference. First operand 731 states and 1135 transitions. Second operand 12 states. [2020-11-07 00:41:02,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:41:02,930 INFO L93 Difference]: Finished difference Result 1554 states and 2652 transitions. [2020-11-07 00:41:02,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-07 00:41:02,931 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 504 [2020-11-07 00:41:02,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:41:02,951 INFO L225 Difference]: With dead ends: 1554 [2020-11-07 00:41:02,952 INFO L226 Difference]: Without dead ends: 836 [2020-11-07 00:41:02,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=97, Invalid=455, Unknown=0, NotChecked=0, Total=552 [2020-11-07 00:41:02,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2020-11-07 00:41:03,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 717. [2020-11-07 00:41:03,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2020-11-07 00:41:03,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 1079 transitions. [2020-11-07 00:41:03,179 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 1079 transitions. Word has length 504 [2020-11-07 00:41:03,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:41:03,179 INFO L481 AbstractCegarLoop]: Abstraction has 717 states and 1079 transitions. [2020-11-07 00:41:03,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-07 00:41:03,180 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 1079 transitions. [2020-11-07 00:41:03,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2020-11-07 00:41:03,197 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:41:03,198 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 17, 17, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 7, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:41:03,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-07 00:41:03,198 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:41:03,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:41:03,198 INFO L82 PathProgramCache]: Analyzing trace with hash -70943467, now seen corresponding path program 7 times [2020-11-07 00:41:03,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:41:03,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2056168425] [2020-11-07 00:41:03,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:41:03,210 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:41:03,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:41:03,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 00:41:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:03,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:03,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:03,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:03,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-07 00:41:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:03,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-07 00:41:03,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:03,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:03,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:03,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:03,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:03,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-11-07 00:41:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:03,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:03,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:03,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:03,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:03,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:04,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:04,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:04,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:04,324 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2020-11-07 00:41:04,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2056168425] [2020-11-07 00:41:04,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:41:04,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-11-07 00:41:04,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277535866] [2020-11-07 00:41:04,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-07 00:41:04,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:41:04,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-07 00:41:04,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-11-07 00:41:04,327 INFO L87 Difference]: Start difference. First operand 717 states and 1079 transitions. Second operand 13 states. [2020-11-07 00:41:05,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:41:05,922 INFO L93 Difference]: Finished difference Result 1139 states and 1770 transitions. [2020-11-07 00:41:05,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-07 00:41:05,923 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 379 [2020-11-07 00:41:05,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:41:05,947 INFO L225 Difference]: With dead ends: 1139 [2020-11-07 00:41:05,947 INFO L226 Difference]: Without dead ends: 1132 [2020-11-07 00:41:05,953 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2020-11-07 00:41:05,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2020-11-07 00:41:06,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1111. [2020-11-07 00:41:06,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1111 states. [2020-11-07 00:41:06,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1734 transitions. [2020-11-07 00:41:06,237 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1734 transitions. Word has length 379 [2020-11-07 00:41:06,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:41:06,238 INFO L481 AbstractCegarLoop]: Abstraction has 1111 states and 1734 transitions. [2020-11-07 00:41:06,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-07 00:41:06,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1734 transitions. [2020-11-07 00:41:06,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2020-11-07 00:41:06,259 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:41:06,259 INFO L422 BasicCegarLoop]: trace histogram [32, 32, 31, 31, 26, 25, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 11, 11, 9, 9, 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] [2020-11-07 00:41:06,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-07 00:41:06,259 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:41:06,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:41:06,260 INFO L82 PathProgramCache]: Analyzing trace with hash -243817694, now seen corresponding path program 8 times [2020-11-07 00:41:06,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:41:06,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [557819757] [2020-11-07 00:41:06,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:41:06,268 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:41:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:06,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:41:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:06,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 00:41:06,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:06,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:06,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:06,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:06,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:06,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:06,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:06,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:07,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:07,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 00:41:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:07,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-11-07 00:41:07,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:07,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:07,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:07,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:07,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:07,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-11-07 00:41:07,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:07,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:07,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:07,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:07,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:07,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:07,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:07,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 00:41:07,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:07,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:07,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:07,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:08,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 199 proven. 131 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2020-11-07 00:41:08,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [557819757] [2020-11-07 00:41:08,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:41:08,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-07 00:41:08,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903659532] [2020-11-07 00:41:08,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-07 00:41:08,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:41:08,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-07 00:41:08,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2020-11-07 00:41:08,486 INFO L87 Difference]: Start difference. First operand 1111 states and 1734 transitions. Second operand 23 states. [2020-11-07 00:41:12,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:41:12,951 INFO L93 Difference]: Finished difference Result 3357 states and 7075 transitions. [2020-11-07 00:41:12,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-11-07 00:41:12,952 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 572 [2020-11-07 00:41:12,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:41:13,005 INFO L225 Difference]: With dead ends: 3357 [2020-11-07 00:41:13,005 INFO L226 Difference]: Without dead ends: 2254 [2020-11-07 00:41:13,044 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 809 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=437, Invalid=2869, Unknown=0, NotChecked=0, Total=3306 [2020-11-07 00:41:13,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2254 states. [2020-11-07 00:41:13,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2254 to 1834. [2020-11-07 00:41:13,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1834 states. [2020-11-07 00:41:13,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 3231 transitions. [2020-11-07 00:41:13,498 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 3231 transitions. Word has length 572 [2020-11-07 00:41:13,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:41:13,500 INFO L481 AbstractCegarLoop]: Abstraction has 1834 states and 3231 transitions. [2020-11-07 00:41:13,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-11-07 00:41:13,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 3231 transitions. [2020-11-07 00:41:13,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1568 [2020-11-07 00:41:13,547 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:41:13,548 INFO L422 BasicCegarLoop]: trace histogram [88, 88, 87, 87, 81, 69, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 38, 38, 25, 25, 18, 18, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:41:13,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-07 00:41:13,548 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:41:13,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:41:13,549 INFO L82 PathProgramCache]: Analyzing trace with hash 2066128172, now seen corresponding path program 9 times [2020-11-07 00:41:13,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:41:13,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2033300641] [2020-11-07 00:41:13,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:41:13,580 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:41:13,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:14,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:41:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:14,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 00:41:15,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:15,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:15,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:15,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:15,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:16,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 00:41:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:16,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-11-07 00:41:16,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:16,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:16,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-07 00:41:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:16,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:16,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:16,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-11-07 00:41:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-07 00:41:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:16,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:16,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:16,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2020-11-07 00:41:17,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:17,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:17,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:17,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:17,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:17,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:17,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 720 [2020-11-07 00:41:17,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:17,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:17,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:17,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:17,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:17,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:17,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:17,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-11-07 00:41:17,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:17,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:17,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:18,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:18,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:18,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:18,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2020-11-07 00:41:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:18,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:18,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-07 00:41:18,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:18,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:18,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-11-07 00:41:18,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-07 00:41:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:18,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:18,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2020-11-07 00:41:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:18,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:18,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:18,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:18,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:21,195 INFO L134 CoverageAnalysis]: Checked inductivity of 8877 backedges. 108 proven. 983 refuted. 0 times theorem prover too weak. 7786 trivial. 0 not checked. [2020-11-07 00:41:21,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2033300641] [2020-11-07 00:41:21,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:41:21,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-07 00:41:21,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629607866] [2020-11-07 00:41:21,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-07 00:41:21,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:41:21,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-07 00:41:21,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2020-11-07 00:41:21,198 INFO L87 Difference]: Start difference. First operand 1834 states and 3231 transitions. Second operand 23 states. [2020-11-07 00:41:25,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:41:25,537 INFO L93 Difference]: Finished difference Result 2484 states and 4751 transitions. [2020-11-07 00:41:25,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-11-07 00:41:25,538 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 1567 [2020-11-07 00:41:25,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:41:25,553 INFO L225 Difference]: With dead ends: 2484 [2020-11-07 00:41:25,553 INFO L226 Difference]: Without dead ends: 654 [2020-11-07 00:41:25,590 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1310 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=641, Invalid=3915, Unknown=0, NotChecked=0, Total=4556 [2020-11-07 00:41:25,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2020-11-07 00:41:25,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 553. [2020-11-07 00:41:25,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2020-11-07 00:41:25,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 801 transitions. [2020-11-07 00:41:25,768 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 801 transitions. Word has length 1567 [2020-11-07 00:41:25,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:41:25,769 INFO L481 AbstractCegarLoop]: Abstraction has 553 states and 801 transitions. [2020-11-07 00:41:25,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-11-07 00:41:25,769 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 801 transitions. [2020-11-07 00:41:25,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2020-11-07 00:41:25,775 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:41:25,775 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 28, 28, 23, 23, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 9, 9, 9, 9, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:41:25,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-07 00:41:25,776 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:41:25,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:41:25,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1477670013, now seen corresponding path program 10 times [2020-11-07 00:41:25,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:41:25,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [238080760] [2020-11-07 00:41:25,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:41:25,782 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:41:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:25,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:41:25,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:25,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 00:41:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:26,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:26,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:26,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:26,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:26,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:26,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 00:41:26,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:26,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:26,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-11-07 00:41:26,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:26,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-11-07 00:41:26,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:26,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:26,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:26,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:27,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1001 backedges. 55 proven. 71 refuted. 0 times theorem prover too weak. 875 trivial. 0 not checked. [2020-11-07 00:41:27,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [238080760] [2020-11-07 00:41:27,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:41:27,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-11-07 00:41:27,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423249614] [2020-11-07 00:41:27,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-11-07 00:41:27,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:41:27,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-11-07 00:41:27,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2020-11-07 00:41:27,202 INFO L87 Difference]: Start difference. First operand 553 states and 801 transitions. Second operand 19 states. [2020-11-07 00:41:30,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:41:30,421 INFO L93 Difference]: Finished difference Result 1184 states and 1816 transitions. [2020-11-07 00:41:30,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-11-07 00:41:30,422 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 519 [2020-11-07 00:41:30,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:41:30,436 INFO L225 Difference]: With dead ends: 1184 [2020-11-07 00:41:30,436 INFO L226 Difference]: Without dead ends: 652 [2020-11-07 00:41:30,443 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=352, Invalid=2300, Unknown=0, NotChecked=0, Total=2652 [2020-11-07 00:41:30,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2020-11-07 00:41:30,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 593. [2020-11-07 00:41:30,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-11-07 00:41:30,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 882 transitions. [2020-11-07 00:41:30,567 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 882 transitions. Word has length 519 [2020-11-07 00:41:30,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:41:30,568 INFO L481 AbstractCegarLoop]: Abstraction has 593 states and 882 transitions. [2020-11-07 00:41:30,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-11-07 00:41:30,569 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 882 transitions. [2020-11-07 00:41:30,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 749 [2020-11-07 00:41:30,575 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:41:30,576 INFO L422 BasicCegarLoop]: trace histogram [42, 42, 41, 41, 34, 33, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 14, 14, 12, 12, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:41:30,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-07 00:41:30,576 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:41:30,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:41:30,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1501432396, now seen corresponding path program 11 times [2020-11-07 00:41:30,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:41:30,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1920096068] [2020-11-07 00:41:30,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:41:30,583 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:41:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:30,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:41:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:30,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 00:41:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:31,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:31,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:31,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:31,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:31,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:31,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:31,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:31,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:31,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 00:41:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:31,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:31,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-11-07 00:41:31,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:31,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:31,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:31,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:31,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:31,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:31,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:31,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:31,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:31,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:31,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-11-07 00:41:31,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:31,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:31,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:31,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:31,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:31,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:32,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:32,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:32,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:32,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:32,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 00:41:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:32,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:32,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:32,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-11-07 00:41:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:32,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:32,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:32,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:32,759 INFO L134 CoverageAnalysis]: Checked inductivity of 2154 backedges. 33 proven. 192 refuted. 0 times theorem prover too weak. 1929 trivial. 0 not checked. [2020-11-07 00:41:32,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1920096068] [2020-11-07 00:41:32,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:41:32,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-11-07 00:41:32,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083409949] [2020-11-07 00:41:32,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-11-07 00:41:32,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:41:32,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-11-07 00:41:32,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2020-11-07 00:41:32,761 INFO L87 Difference]: Start difference. First operand 593 states and 882 transitions. Second operand 21 states. [2020-11-07 00:41:36,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:41:36,899 INFO L93 Difference]: Finished difference Result 976 states and 1519 transitions. [2020-11-07 00:41:36,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-11-07 00:41:36,905 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 748 [2020-11-07 00:41:36,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:41:36,913 INFO L225 Difference]: With dead ends: 976 [2020-11-07 00:41:36,913 INFO L226 Difference]: Without dead ends: 347 [2020-11-07 00:41:36,921 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1064 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=519, Invalid=3387, Unknown=0, NotChecked=0, Total=3906 [2020-11-07 00:41:36,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-11-07 00:41:37,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 293. [2020-11-07 00:41:37,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-11-07 00:41:37,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 404 transitions. [2020-11-07 00:41:37,022 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 404 transitions. Word has length 748 [2020-11-07 00:41:37,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:41:37,024 INFO L481 AbstractCegarLoop]: Abstraction has 293 states and 404 transitions. [2020-11-07 00:41:37,024 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-11-07 00:41:37,024 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 404 transitions. [2020-11-07 00:41:37,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2020-11-07 00:41:37,030 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:41:37,031 INFO L422 BasicCegarLoop]: trace histogram [34, 34, 33, 33, 27, 27, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 11, 11, 10, 10, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:41:37,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-07 00:41:37,031 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:41:37,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:41:37,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1417613262, now seen corresponding path program 12 times [2020-11-07 00:41:37,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:41:37,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285605833] [2020-11-07 00:41:37,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:41:37,037 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:41:37,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:37,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:41:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:37,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 00:41:37,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:37,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:37,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:37,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:37,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:37,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:37,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:38,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:38,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:38,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:38,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:38,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:38,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:38,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:38,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:38,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:38,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:38,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:38,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:38,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:38,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:38,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:38,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:38,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 00:41:38,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:38,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:38,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:38,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:38,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:38,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:38,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:38,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:38,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:38,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:38,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:38,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:38,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:38,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:38,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-11-07 00:41:38,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:39,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:39,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:39,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:39,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:39,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:39,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-11-07 00:41:39,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:39,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:39,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:39,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:39,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:39,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 00:41:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:39,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:39,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:39,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:39,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:40,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1259 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1259 trivial. 0 not checked. [2020-11-07 00:41:40,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1285605833] [2020-11-07 00:41:40,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:41:40,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2020-11-07 00:41:40,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908921579] [2020-11-07 00:41:40,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-11-07 00:41:40,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:41:40,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-11-07 00:41:40,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1561, Unknown=0, NotChecked=0, Total=1640 [2020-11-07 00:41:40,753 INFO L87 Difference]: Start difference. First operand 293 states and 404 transitions. Second operand 41 states. [2020-11-07 00:41:48,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:41:48,890 INFO L93 Difference]: Finished difference Result 309 states and 425 transitions. [2020-11-07 00:41:48,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-11-07 00:41:48,891 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 607 [2020-11-07 00:41:48,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:41:48,896 INFO L225 Difference]: With dead ends: 309 [2020-11-07 00:41:48,896 INFO L226 Difference]: Without dead ends: 302 [2020-11-07 00:41:48,900 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1236 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=370, Invalid=8002, Unknown=0, NotChecked=0, Total=8372 [2020-11-07 00:41:48,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-11-07 00:41:48,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 293. [2020-11-07 00:41:48,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-11-07 00:41:48,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 404 transitions. [2020-11-07 00:41:48,966 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 404 transitions. Word has length 607 [2020-11-07 00:41:48,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:41:48,967 INFO L481 AbstractCegarLoop]: Abstraction has 293 states and 404 transitions. [2020-11-07 00:41:48,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-11-07 00:41:48,967 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 404 transitions. [2020-11-07 00:41:48,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 661 [2020-11-07 00:41:48,975 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:41:48,975 INFO L422 BasicCegarLoop]: trace histogram [38, 38, 35, 35, 30, 29, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 13, 13, 10, 10, 8, 8, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:41:48,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-11-07 00:41:48,976 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:41:48,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:41:48,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1927969767, now seen corresponding path program 13 times [2020-11-07 00:41:48,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:41:48,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839066810] [2020-11-07 00:41:48,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:41:48,983 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:41:49,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:41:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 00:41:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:49,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:49,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 00:41:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:49,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:49,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:49,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:49,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:49,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:49,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-11-07 00:41:49,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:49,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:49,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:49,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:49,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:49,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:49,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:49,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:49,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:49,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:49,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:49,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:49,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-11-07 00:41:50,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:50,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:50,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:50,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:50,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:50,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 00:41:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:50,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:50,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:50,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:50,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:50,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:50,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:50,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:50,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:50,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:50,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:50,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:50,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:50,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:50,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1613 backedges. 199 proven. 164 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2020-11-07 00:41:50,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839066810] [2020-11-07 00:41:50,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:41:50,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-11-07 00:41:50,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311710897] [2020-11-07 00:41:50,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-11-07 00:41:50,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:41:50,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-11-07 00:41:50,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600 [2020-11-07 00:41:50,909 INFO L87 Difference]: Start difference. First operand 293 states and 404 transitions. Second operand 25 states. [2020-11-07 00:41:56,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:41:56,128 INFO L93 Difference]: Finished difference Result 604 states and 906 transitions. [2020-11-07 00:41:56,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-11-07 00:41:56,131 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 660 [2020-11-07 00:41:56,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:41:56,137 INFO L225 Difference]: With dead ends: 604 [2020-11-07 00:41:56,138 INFO L226 Difference]: Without dead ends: 333 [2020-11-07 00:41:56,142 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1813 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=806, Invalid=5046, Unknown=0, NotChecked=0, Total=5852 [2020-11-07 00:41:56,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2020-11-07 00:41:56,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 305. [2020-11-07 00:41:56,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-11-07 00:41:56,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 420 transitions. [2020-11-07 00:41:56,210 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 420 transitions. Word has length 660 [2020-11-07 00:41:56,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:41:56,210 INFO L481 AbstractCegarLoop]: Abstraction has 305 states and 420 transitions. [2020-11-07 00:41:56,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-11-07 00:41:56,211 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 420 transitions. [2020-11-07 00:41:56,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2020-11-07 00:41:56,218 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:41:56,219 INFO L422 BasicCegarLoop]: trace histogram [40, 40, 37, 37, 31, 31, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 13, 13, 11, 11, 9, 9, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:41:56,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-07 00:41:56,219 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:41:56,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:41:56,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1165044761, now seen corresponding path program 14 times [2020-11-07 00:41:56,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:41:56,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [147513312] [2020-11-07 00:41:56,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:41:56,225 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:41:56,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:56,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:41:56,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:56,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 00:41:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:56,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:56,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:56,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:56,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:56,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:56,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:56,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:56,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:56,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:57,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:57,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:57,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:57,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:57,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:57,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:57,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 00:41:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:57,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:57,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:57,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-11-07 00:41:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:57,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:57,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:57,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:57,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2020-11-07 00:41:57,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:57,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:57,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:57,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:57,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:57,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:57,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 451 [2020-11-07 00:41:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:57,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:41:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:57,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:57,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 00:41:57,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:57,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:41:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:41:57,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:41:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:57,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:41:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:41:58,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1804 backedges. 21 proven. 189 refuted. 0 times theorem prover too weak. 1594 trivial. 0 not checked. [2020-11-07 00:41:58,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [147513312] [2020-11-07 00:41:58,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:41:58,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-11-07 00:41:58,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508581207] [2020-11-07 00:41:58,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-07 00:41:58,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:41:58,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-07 00:41:58,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2020-11-07 00:41:58,122 INFO L87 Difference]: Start difference. First operand 305 states and 420 transitions. Second operand 17 states. [2020-11-07 00:42:00,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:42:00,669 INFO L93 Difference]: Finished difference Result 597 states and 851 transitions. [2020-11-07 00:42:00,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-11-07 00:42:00,670 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 695 [2020-11-07 00:42:00,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:42:00,674 INFO L225 Difference]: With dead ends: 597 [2020-11-07 00:42:00,675 INFO L226 Difference]: Without dead ends: 314 [2020-11-07 00:42:00,677 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=236, Invalid=1404, Unknown=0, NotChecked=0, Total=1640 [2020-11-07 00:42:00,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-11-07 00:42:00,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 301. [2020-11-07 00:42:00,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-11-07 00:42:00,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 410 transitions. [2020-11-07 00:42:00,740 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 410 transitions. Word has length 695 [2020-11-07 00:42:00,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:42:00,740 INFO L481 AbstractCegarLoop]: Abstraction has 301 states and 410 transitions. [2020-11-07 00:42:00,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-07 00:42:00,741 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 410 transitions. [2020-11-07 00:42:00,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2020-11-07 00:42:00,751 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:42:00,752 INFO L422 BasicCegarLoop]: trace histogram [55, 55, 54, 54, 45, 43, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 18, 18, 16, 16, 11, 11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:42:00,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-11-07 00:42:00,752 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:42:00,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:42:00,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1455506331, now seen corresponding path program 15 times [2020-11-07 00:42:00,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:42:00,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [677205983] [2020-11-07 00:42:00,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:42:00,761 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:42:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:01,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:42:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:01,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 00:42:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:01,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:01,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:01,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:01,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:01,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:01,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:01,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:01,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:01,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:01,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:01,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:01,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:42:02,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:42:02,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:42:02,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:42:02,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:42:02,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:42:02,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:42:02,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 00:42:02,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:42:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:42:02,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:42:02,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:42:02,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-11-07 00:42:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:42:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:42:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:42:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:42:02,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:42:02,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:42:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:42:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-11-07 00:42:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:42:02,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:42:02,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:42:02,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:42:02,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:42:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:42:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:42:02,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 00:42:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:42:02,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:42:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:42:02,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:42:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-11-07 00:42:02,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:42:02,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:42:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:42:02,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:42:02,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:42:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:42:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:42:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-11-07 00:42:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:02,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:03,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:03,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:03,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:42:03,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:03,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:42:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:03,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:42:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:03,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:03,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:42:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:03,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 00:42:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:03,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:03,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:03,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:03,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:42:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:03,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:42:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:03,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 00:42:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:03,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:03,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:03,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:03,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:03,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:03,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:42:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:03,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 00:42:03,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:03,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 00:42:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:03,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:42:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:03,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:42:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:42:03,934 INFO L134 CoverageAnalysis]: Checked inductivity of 3573 backedges. 158 proven. 196 refuted. 0 times theorem prover too weak. 3219 trivial. 0 not checked. [2020-11-07 00:42:03,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [677205983] [2020-11-07 00:42:03,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:42:03,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-11-07 00:42:03,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039788610] [2020-11-07 00:42:03,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-11-07 00:42:03,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:42:03,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-11-07 00:42:03,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2020-11-07 00:42:03,938 INFO L87 Difference]: Start difference. First operand 301 states and 410 transitions. Second operand 21 states. [2020-11-07 00:42:07,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:42:07,955 INFO L93 Difference]: Finished difference Result 560 states and 791 transitions. [2020-11-07 00:42:07,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-11-07 00:42:07,963 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 977 [2020-11-07 00:42:07,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:42:07,967 INFO L225 Difference]: With dead ends: 560 [2020-11-07 00:42:07,968 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 00:42:07,973 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 889 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=451, Invalid=3089, Unknown=0, NotChecked=0, Total=3540 [2020-11-07 00:42:07,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 00:42:07,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 00:42:07,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 00:42:07,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 00:42:07,974 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 977 [2020-11-07 00:42:07,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:42:07,974 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 00:42:07,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-11-07 00:42:07,975 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 00:42:07,975 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 00:42:07,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-11-07 00:42:07,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 00:42:12,967 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 146 [2020-11-07 00:42:13,887 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 146 [2020-11-07 00:42:15,562 WARN L194 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 122 [2020-11-07 00:42:15,870 WARN L194 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 140 [2020-11-07 00:42:16,075 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 146 [2020-11-07 00:42:16,328 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 151 [2020-11-07 00:42:21,725 WARN L194 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 112 [2020-11-07 00:42:21,974 WARN L194 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 124 [2020-11-07 00:42:22,394 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 125 [2020-11-07 00:42:25,888 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 135 [2020-11-07 00:42:26,607 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 124 [2020-11-07 00:42:26,791 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 135 [2020-11-07 00:42:28,414 WARN L194 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 119 [2020-11-07 00:42:28,701 WARN L194 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 00:42:29,117 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 138 [2020-11-07 00:42:32,455 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 124 [2020-11-07 00:42:32,639 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 135 [2020-11-07 00:42:34,251 WARN L194 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 119 [2020-11-07 00:42:34,530 WARN L194 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 00:42:34,701 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 135 [2020-11-07 00:42:34,978 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 138 [2020-11-07 00:42:48,077 WARN L194 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 128 [2020-11-07 00:42:49,590 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 121 [2020-11-07 00:42:49,895 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 128 [2020-11-07 00:42:53,397 WARN L194 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 124 [2020-11-07 00:42:53,824 WARN L194 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 129 [2020-11-07 00:42:54,087 WARN L194 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 128 [2020-11-07 00:42:54,591 WARN L194 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 135 [2020-11-07 00:43:06,278 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 121 [2020-11-07 00:43:06,632 WARN L194 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 128 [2020-11-07 00:43:08,198 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 121 [2020-11-07 00:43:08,502 WARN L194 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 128 [2020-11-07 00:43:12,128 WARN L194 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 124 [2020-11-07 00:43:12,555 WARN L194 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 129 [2020-11-07 00:43:12,821 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 128 [2020-11-07 00:43:13,278 WARN L194 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 135 [2020-11-07 00:43:15,754 WARN L194 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 9 [2020-11-07 00:43:16,184 WARN L194 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 6 [2020-11-07 00:43:16,697 WARN L194 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 6 [2020-11-07 00:43:18,641 WARN L194 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 187 DAG size of output: 38 [2020-11-07 00:43:22,749 WARN L194 SmtUtils]: Spent 4.05 s on a formula simplification. DAG size of input: 373 DAG size of output: 65 [2020-11-07 00:43:23,214 WARN L194 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 6 [2020-11-07 00:43:25,952 WARN L194 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 348 DAG size of output: 36 [2020-11-07 00:43:27,795 WARN L194 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 187 DAG size of output: 38 [2020-11-07 00:43:31,397 WARN L194 SmtUtils]: Spent 3.59 s on a formula simplification. DAG size of input: 360 DAG size of output: 51 [2020-11-07 00:43:35,110 WARN L194 SmtUtils]: Spent 3.70 s on a formula simplification. DAG size of input: 360 DAG size of output: 51 [2020-11-07 00:43:35,439 WARN L194 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 6 [2020-11-07 00:43:35,655 WARN L194 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 1 [2020-11-07 00:43:36,760 WARN L194 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 171 DAG size of output: 36 [2020-11-07 00:43:37,159 WARN L194 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 3 [2020-11-07 00:43:38,252 WARN L194 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 178 DAG size of output: 54 [2020-11-07 00:43:39,554 WARN L194 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 180 DAG size of output: 42 [2020-11-07 00:43:40,637 WARN L194 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 178 DAG size of output: 54 [2020-11-07 00:43:41,033 WARN L194 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 6 [2020-11-07 00:43:45,223 WARN L194 SmtUtils]: Spent 4.18 s on a formula simplification. DAG size of input: 393 DAG size of output: 47 [2020-11-07 00:43:45,624 WARN L194 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 7 [2020-11-07 00:43:46,678 WARN L194 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 171 DAG size of output: 36 [2020-11-07 00:43:46,872 WARN L194 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 1 [2020-11-07 00:43:48,157 WARN L194 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 180 DAG size of output: 42 [2020-11-07 00:43:49,394 WARN L194 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 193 DAG size of output: 55 [2020-11-07 00:43:50,480 WARN L194 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 166 DAG size of output: 39 [2020-11-07 00:43:50,817 WARN L194 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 8 [2020-11-07 00:43:55,056 WARN L194 SmtUtils]: Spent 4.16 s on a formula simplification. DAG size of input: 393 DAG size of output: 47 [2020-11-07 00:43:55,549 WARN L194 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 3 [2020-11-07 00:43:55,557 INFO L269 CegarLoopResult]: At program point reach_errorEXIT(line 4) the Hoare annotation is: true [2020-11-07 00:43:55,558 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-11-07 00:43:55,558 INFO L269 CegarLoopResult]: At program point reach_errorFINAL(line 4) the Hoare annotation is: true [2020-11-07 00:43:55,558 INFO L269 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) the Hoare annotation is: true [2020-11-07 00:43:55,558 INFO L269 CegarLoopResult]: At program point L4-3(line 4) the Hoare annotation is: true [2020-11-07 00:43:55,558 INFO L269 CegarLoopResult]: At program point L4-4(line 4) the Hoare annotation is: true [2020-11-07 00:43:55,558 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 00:43:55,558 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-11-07 00:43:55,558 INFO L269 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 4) the Hoare annotation is: true [2020-11-07 00:43:55,559 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-11-07 00:43:55,559 INFO L269 CegarLoopResult]: At program point L4(line 4) the Hoare annotation is: true [2020-11-07 00:43:55,559 INFO L269 CegarLoopResult]: At program point L4-1(line 4) the Hoare annotation is: true [2020-11-07 00:43:55,559 INFO L269 CegarLoopResult]: At program point L4-2(line 4) the Hoare annotation is: true [2020-11-07 00:43:55,559 INFO L269 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-11-07 00:43:55,559 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-11-07 00:43:55,559 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 00:43:55,559 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-07 00:43:55,559 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-11-07 00:43:55,559 INFO L269 CegarLoopResult]: At program point mainENTRY(lines 37 44) the Hoare annotation is: true [2020-11-07 00:43:55,560 INFO L262 CegarLoopResult]: At program point mainEXIT(lines 37 44) the Hoare annotation is: (<= 8 main_~x~0) [2020-11-07 00:43:55,560 INFO L262 CegarLoopResult]: At program point mainFINAL(lines 37 44) the Hoare annotation is: (<= 8 main_~x~0) [2020-11-07 00:43:55,560 INFO L262 CegarLoopResult]: At program point L41(line 41) the Hoare annotation is: false [2020-11-07 00:43:55,560 INFO L262 CegarLoopResult]: At program point L40(lines 40 42) the Hoare annotation is: (and (<= 8 main_~x~0) (<= main_~result~0 21) (<= main_~x~0 8) (<= 21 main_~result~0)) [2020-11-07 00:43:55,560 INFO L262 CegarLoopResult]: At program point L41-1(line 41) the Hoare annotation is: false [2020-11-07 00:43:55,561 INFO L262 CegarLoopResult]: At program point L39(line 39) the Hoare annotation is: (and (<= 8 main_~x~0) (<= main_~x~0 8)) [2020-11-07 00:43:55,561 INFO L262 CegarLoopResult]: At program point L39-1(line 39) the Hoare annotation is: (and (<= 8 main_~x~0) (<= 21 |main_#t~ret11|) (<= |main_#t~ret11| 21) (<= main_~x~0 8)) [2020-11-07 00:43:55,561 INFO L262 CegarLoopResult]: At program point L40-2(lines 40 42) the Hoare annotation is: (<= 8 main_~x~0) [2020-11-07 00:43:55,561 INFO L262 CegarLoopResult]: At program point L39-2(line 39) the Hoare annotation is: (and (<= 8 main_~x~0) (<= 21 |main_#t~ret11|) (<= |main_#t~ret11| 21) (<= main_~x~0 8)) [2020-11-07 00:43:55,561 INFO L262 CegarLoopResult]: At program point L39-3(line 39) the Hoare annotation is: (and (<= 8 main_~x~0) (<= main_~result~0 21) (<= 21 |main_#t~ret11|) (<= |main_#t~ret11| 21) (<= main_~x~0 8) (<= 21 main_~result~0)) [2020-11-07 00:43:55,561 INFO L269 CegarLoopResult]: At program point fibo2ENTRY(lines 19 27) the Hoare annotation is: true [2020-11-07 00:43:55,561 INFO L262 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (and (= fibo2_~n |fibo2_#in~n|) (not (<= |fibo2_#in~n| 1))) [2020-11-07 00:43:55,561 INFO L262 CegarLoopResult]: At program point L25-1(line 25) the Hoare annotation is: (let ((.cse1 (<= 4 |fibo2_#in~n|)) (.cse2 (= fibo2_~n |fibo2_#in~n|))) (let ((.cse0 (and (<= |fibo2_#t~ret9| 2) .cse1 (<= |fibo2_#in~n| 4) .cse2 (<= 2 |fibo2_#t~ret9|)))) (and (or (and (<= |fibo2_#t~ret9| 1) (<= 1 |fibo2_#t~ret9|) (<= |fibo2_#in~n| 2)) .cse0 (not (<= |fibo2_#in~n| 5))) (or (not .cse1) .cse0 (and (<= fibo2_~n 6) (<= |fibo2_#t~ret9| 5) (<= 5 |fibo2_#t~ret9|)) (and (<= 8 |fibo2_#t~ret9|) (<= |fibo2_#t~ret9| 8) (<= 7 |fibo2_#in~n|)) (<= 8 |fibo2_#in~n|)) .cse2 (< 1 fibo2_~n)))) [2020-11-07 00:43:55,562 INFO L262 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (= fibo2_~n |fibo2_#in~n|) (<= |fibo2_#in~n| 1) (< 0 fibo2_~n)) [2020-11-07 00:43:55,562 INFO L262 CegarLoopResult]: At program point L25-2(line 25) the Hoare annotation is: (let ((.cse1 (<= 4 |fibo2_#in~n|)) (.cse2 (= fibo2_~n |fibo2_#in~n|))) (let ((.cse0 (and (<= |fibo2_#t~ret9| 2) .cse1 (<= |fibo2_#in~n| 4) .cse2 (<= 2 |fibo2_#t~ret9|)))) (and (or (and (<= |fibo2_#t~ret9| 1) (<= 1 |fibo2_#t~ret9|) (<= |fibo2_#in~n| 2)) .cse0 (not (<= |fibo2_#in~n| 5))) (or (not .cse1) .cse0 (and (<= fibo2_~n 6) (<= |fibo2_#t~ret9| 5) (<= 5 |fibo2_#t~ret9|)) (and (<= 8 |fibo2_#t~ret9|) (<= |fibo2_#t~ret9| 8) (<= 7 |fibo2_#in~n|)) (<= 8 |fibo2_#in~n|)) .cse2 (< 1 fibo2_~n)))) [2020-11-07 00:43:55,562 INFO L262 CegarLoopResult]: At program point L22(lines 22 26) the Hoare annotation is: (and (= fibo2_~n |fibo2_#in~n|) (< 0 fibo2_~n)) [2020-11-07 00:43:55,562 INFO L262 CegarLoopResult]: At program point L25-3(line 25) the Hoare annotation is: (let ((.cse2 (= fibo2_~n |fibo2_#in~n|)) (.cse0 (+ |fibo2_#t~ret9| |fibo2_#t~ret10|))) (let ((.cse1 (not (<= 3 |fibo2_#in~n|))) (.cse3 (and (<= .cse0 3) (<= |fibo2_#t~ret9| 2) (<= 4 |fibo2_#in~n|) (<= |fibo2_#in~n| 4) .cse2 (<= 3 .cse0) (<= 2 |fibo2_#t~ret9|)))) (and (or (and (<= 8 .cse0) (<= |fibo2_#in~n| 6) (<= fibo2_~n 6) (<= .cse0 8) (<= |fibo2_#t~ret9| 5) (<= 6 fibo2_~n) (<= 5 |fibo2_#t~ret9|)) .cse1 (and (<= 8 |fibo2_#t~ret9|) (<= |fibo2_#t~ret9| 8) (<= 7 |fibo2_#in~n|) (<= .cse0 13) .cse2 (<= 13 .cse0)) (and .cse2 (<= 8 |fibo2_#in~n|)) .cse3) (or .cse1 (not (<= |fibo2_#in~n| 5)) .cse3) (< 1 fibo2_~n) (or (and (<= |fibo2_#t~ret9| 1) .cse2 (<= .cse0 1) (<= 1 |fibo2_#t~ret9|) (<= 1 .cse0)) (not (<= |fibo2_#in~n| 2)))))) [2020-11-07 00:43:55,562 INFO L262 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (and (= fibo2_~n |fibo2_#in~n|) (<= |fibo2_#in~n| 0)) [2020-11-07 00:43:55,562 INFO L262 CegarLoopResult]: At program point L25-4(line 25) the Hoare annotation is: (let ((.cse2 (= fibo2_~n |fibo2_#in~n|)) (.cse0 (+ |fibo2_#t~ret9| |fibo2_#t~ret10|))) (let ((.cse1 (not (<= 3 |fibo2_#in~n|))) (.cse3 (and (<= .cse0 3) (<= |fibo2_#t~ret9| 2) (<= 4 |fibo2_#in~n|) (<= |fibo2_#in~n| 4) .cse2 (<= 3 .cse0) (<= 2 |fibo2_#t~ret9|)))) (and (or (and (<= 8 .cse0) (<= |fibo2_#in~n| 6) (<= fibo2_~n 6) (<= .cse0 8) (<= |fibo2_#t~ret9| 5) (<= 6 fibo2_~n) (<= 5 |fibo2_#t~ret9|)) .cse1 (and (<= 8 |fibo2_#t~ret9|) (<= |fibo2_#t~ret9| 8) (<= 7 |fibo2_#in~n|) (<= .cse0 13) .cse2 (<= 13 .cse0)) (and .cse2 (<= 8 |fibo2_#in~n|)) .cse3) (or .cse1 (not (<= |fibo2_#in~n| 5)) .cse3) (< 1 fibo2_~n) (or (and (<= |fibo2_#t~ret9| 1) .cse2 (<= .cse0 1) (<= 1 |fibo2_#t~ret9|) (<= 1 .cse0)) (not (<= |fibo2_#in~n| 2)))))) [2020-11-07 00:43:55,563 INFO L262 CegarLoopResult]: At program point L20(lines 20 26) the Hoare annotation is: (= fibo2_~n |fibo2_#in~n|) [2020-11-07 00:43:55,563 INFO L262 CegarLoopResult]: At program point L25-5(line 25) the Hoare annotation is: (and (let ((.cse0 (+ |fibo2_#t~ret9| |fibo2_#t~ret10|)) (.cse1 (= fibo2_~n |fibo2_#in~n|))) (or (and (<= 8 .cse0) (<= fibo2_~n 6) (<= .cse0 8) (<= |fibo2_#res| 8) (<= |fibo2_#t~ret9| 5) (<= 6 fibo2_~n) (<= 8 |fibo2_#res|) .cse1 (<= 5 |fibo2_#t~ret9|)) (and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1) (<= |fibo2_#t~ret9| 1) .cse1 (<= .cse0 1) (<= 1 |fibo2_#t~ret9|) (<= 1 .cse0) (<= |fibo2_#in~n| 2)) (and (<= 8 |fibo2_#t~ret9|) (<= |fibo2_#t~ret9| 8) (<= 13 |fibo2_#res|) (<= 7 |fibo2_#in~n|) (<= .cse0 13) (<= |fibo2_#res| 13) .cse1 (<= 13 .cse0)) (and (<= .cse0 3) (<= |fibo2_#t~ret9| 2) (<= 4 |fibo2_#in~n|) (<= |fibo2_#in~n| 4) (<= 3 |fibo2_#res|) (<= |fibo2_#res| 3) .cse1 (<= 3 .cse0) (<= 2 |fibo2_#t~ret9|)) (and .cse1 (<= 8 |fibo2_#in~n|)))) (< 1 fibo2_~n)) [2020-11-07 00:43:55,563 INFO L262 CegarLoopResult]: At program point L25-6(line 25) the Hoare annotation is: (let ((.cse0 (<= |fibo2_#in~n| 6)) (.cse1 (= fibo2_~n |fibo2_#in~n|))) (and (or .cse0 (and (<= 13 |fibo2_#res|) (<= |fibo2_#res| 13) .cse1) (and .cse1 (<= 8 |fibo2_#in~n|))) (or (and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1) .cse1) (not (<= |fibo2_#in~n| 2))) (or (and (<= 4 |fibo2_#in~n|) (<= |fibo2_#in~n| 4) (<= 3 |fibo2_#res|) (<= |fibo2_#res| 3) .cse1) (not (<= 3 |fibo2_#in~n|)) (not .cse0) (and (<= |fibo2_#res| 8) (<= 6 fibo2_~n) (<= 8 |fibo2_#res|) .cse1)) (< 1 fibo2_~n))) [2020-11-07 00:43:55,563 INFO L262 CegarLoopResult]: At program point fibo2FINAL(lines 19 27) the Hoare annotation is: (and (let ((.cse0 (= fibo2_~n |fibo2_#in~n|))) (or (and (<= 4 |fibo2_#in~n|) (<= |fibo2_#in~n| 4) (<= 3 |fibo2_#res|) (<= |fibo2_#res| 3) .cse0) (and .cse0 (<= |fibo2_#in~n| 0)) (and (<= 13 |fibo2_#res|) (<= 7 |fibo2_#in~n|) (<= |fibo2_#res| 13) .cse0) (and (<= fibo2_~n 6) (<= |fibo2_#res| 8) (<= 6 fibo2_~n) (<= 8 |fibo2_#res|) .cse0) (and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1) .cse0 (<= |fibo2_#in~n| 2)) (and .cse0 (<= 8 |fibo2_#in~n|)))) (or (and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|)) (< 0 fibo2_~n))) [2020-11-07 00:43:55,563 INFO L262 CegarLoopResult]: At program point fibo2EXIT(lines 19 27) the Hoare annotation is: (and (let ((.cse0 (= fibo2_~n |fibo2_#in~n|))) (or (and (<= 4 |fibo2_#in~n|) (<= |fibo2_#in~n| 4) (<= 3 |fibo2_#res|) (<= |fibo2_#res| 3) .cse0) (and .cse0 (<= |fibo2_#in~n| 0)) (and (<= 13 |fibo2_#res|) (<= 7 |fibo2_#in~n|) (<= |fibo2_#res| 13) .cse0) (and (<= fibo2_~n 6) (<= |fibo2_#res| 8) (<= 6 fibo2_~n) (<= 8 |fibo2_#res|) .cse0) (and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1) .cse0 (<= |fibo2_#in~n| 2)) (and .cse0 (<= 8 |fibo2_#in~n|)))) (or (and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|)) (< 0 fibo2_~n))) [2020-11-07 00:43:55,563 INFO L269 CegarLoopResult]: At program point fibo1ENTRY(lines 9 17) the Hoare annotation is: true [2020-11-07 00:43:55,563 INFO L262 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (<= 2 |fibo1_#in~n|) (= fibo1_~n |fibo1_#in~n|)) [2020-11-07 00:43:55,564 INFO L262 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: (let ((.cse0 (= fibo1_~n |fibo1_#in~n|))) (and (or (<= 5 |fibo1_#in~n|) (and (<= 1 |fibo1_#t~ret7|) (<= |fibo1_#t~ret7| 1) .cse0)) (or (and (<= 7 fibo1_~n) .cse0 (<= |fibo1_#in~n| 7)) (and (<= 9 fibo1_~n) .cse0) (and (<= |fibo1_#in~n| 5) (<= 3 |fibo1_#t~ret7|) (<= 5 fibo1_~n) (<= fibo1_~n 5) (<= |fibo1_#t~ret7| 3)) (and (<= 8 fibo1_~n) .cse0 (<= 13 |fibo1_#t~ret7|) (<= |fibo1_#t~ret7| 13)) (not (<= 4 |fibo1_#in~n|))) (<= 2 |fibo1_#in~n|))) [2020-11-07 00:43:55,564 INFO L262 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (<= |fibo1_#in~n| 1) (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|)) [2020-11-07 00:43:55,564 INFO L262 CegarLoopResult]: At program point L15-2(line 15) the Hoare annotation is: (let ((.cse0 (= fibo1_~n |fibo1_#in~n|))) (and (or (<= 5 |fibo1_#in~n|) (and (<= 1 |fibo1_#t~ret7|) (<= |fibo1_#t~ret7| 1) .cse0)) (or (and (<= 7 fibo1_~n) .cse0 (<= |fibo1_#in~n| 7)) (and (<= 9 fibo1_~n) .cse0) (and (<= |fibo1_#in~n| 5) (<= 3 |fibo1_#t~ret7|) (<= 5 fibo1_~n) (<= fibo1_~n 5) (<= |fibo1_#t~ret7| 3)) (and (<= 8 fibo1_~n) .cse0 (<= 13 |fibo1_#t~ret7|) (<= |fibo1_#t~ret7| 13)) (not (<= 4 |fibo1_#in~n|))) (<= 2 |fibo1_#in~n|))) [2020-11-07 00:43:55,564 INFO L262 CegarLoopResult]: At program point L12(lines 12 16) the Hoare annotation is: (and (= fibo1_~n |fibo1_#in~n|) (< 0 fibo1_~n)) [2020-11-07 00:43:55,564 INFO L262 CegarLoopResult]: At program point L15-3(line 15) the Hoare annotation is: (let ((.cse0 (<= 1 |fibo1_#t~ret7|)) (.cse1 (+ |fibo1_#t~ret7| |fibo1_#t~ret8|)) (.cse2 (<= |fibo1_#t~ret7| 1))) (let ((.cse3 (<= 5 |fibo1_#in~n|)) (.cse4 (and (<= |fibo1_#in~n| 3) .cse0 (<= 2 .cse1) (<= .cse1 2) .cse2 (<= 3 |fibo1_#in~n|)))) (and (or (and .cse0 (<= 1 .cse1) .cse2 (<= .cse1 1)) .cse3 .cse4) (not (<= |fibo1_#in~n| 1)) (or .cse3 (<= |fibo1_#in~n| 2) .cse4) (or (and (<= 7 |fibo1_#in~n|) (or (and (<= .cse1 21) (<= 21 .cse1) (<= 13 |fibo1_#t~ret7|) (<= |fibo1_#t~ret7| 13)) (<= |fibo1_#in~n| 7))) (<= 9 fibo1_~n) (not (<= 4 |fibo1_#in~n|)) (and (<= 3 |fibo1_#t~ret7|) (<= 5 .cse1) (<= fibo1_~n 5) (<= |fibo1_#t~ret7| 3) (<= .cse1 5))) (= fibo1_~n |fibo1_#in~n|)))) [2020-11-07 00:43:55,564 INFO L262 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (and (<= |fibo1_#in~n| 0) (= fibo1_~n |fibo1_#in~n|)) [2020-11-07 00:43:55,564 INFO L262 CegarLoopResult]: At program point L15-4(line 15) the Hoare annotation is: (let ((.cse0 (<= 1 |fibo1_#t~ret7|)) (.cse1 (+ |fibo1_#t~ret7| |fibo1_#t~ret8|)) (.cse2 (<= |fibo1_#t~ret7| 1))) (let ((.cse3 (<= 5 |fibo1_#in~n|)) (.cse4 (and (<= |fibo1_#in~n| 3) .cse0 (<= 2 .cse1) (<= .cse1 2) .cse2 (<= 3 |fibo1_#in~n|)))) (and (or (and .cse0 (<= 1 .cse1) .cse2 (<= .cse1 1)) .cse3 .cse4) (not (<= |fibo1_#in~n| 1)) (or .cse3 (<= |fibo1_#in~n| 2) .cse4) (or (and (<= 7 |fibo1_#in~n|) (or (and (<= .cse1 21) (<= 21 .cse1) (<= 13 |fibo1_#t~ret7|) (<= |fibo1_#t~ret7| 13)) (<= |fibo1_#in~n| 7))) (<= 9 fibo1_~n) (not (<= 4 |fibo1_#in~n|)) (and (<= 3 |fibo1_#t~ret7|) (<= 5 .cse1) (<= fibo1_~n 5) (<= |fibo1_#t~ret7| 3) (<= .cse1 5))) (= fibo1_~n |fibo1_#in~n|)))) [2020-11-07 00:43:55,565 INFO L262 CegarLoopResult]: At program point fibo1FINAL(lines 9 17) the Hoare annotation is: (let ((.cse0 (= fibo1_~n |fibo1_#in~n|))) (and (or (and .cse0 (<= |fibo1_#res| 1) (<= 1 |fibo1_#res|)) (not (<= |fibo1_#in~n| 2)) (and (<= |fibo1_#in~n| 0) .cse0)) (or (not (<= 3 |fibo1_#in~n|)) (and (<= 7 |fibo1_#in~n|) .cse0 (or (and (<= |fibo1_#res| 21) (<= 21 |fibo1_#res|)) (<= |fibo1_#in~n| 7))) (and (<= 9 fibo1_~n) .cse0) (and (<= 2 |fibo1_#res|) (<= |fibo1_#in~n| 3) (<= |fibo1_#res| 2) .cse0) (and (<= 5 |fibo1_#in~n|) (<= 5 |fibo1_#res|) (<= fibo1_~n 5) (<= |fibo1_#res| 5) .cse0)) (or (and (<= 0 |fibo1_#res|) (<= |fibo1_#res| 0)) (< 0 fibo1_~n)))) [2020-11-07 00:43:55,565 INFO L262 CegarLoopResult]: At program point L10(lines 10 16) the Hoare annotation is: (= fibo1_~n |fibo1_#in~n|) [2020-11-07 00:43:55,565 INFO L262 CegarLoopResult]: At program point L15-5(line 15) the Hoare annotation is: (let ((.cse0 (<= |fibo1_#in~n| 2)) (.cse1 (<= 1 |fibo1_#t~ret7|)) (.cse3 (<= |fibo1_#t~ret7| 1)) (.cse2 (+ |fibo1_#t~ret7| |fibo1_#t~ret8|))) (and (or .cse0 (and (<= 2 |fibo1_#res|) .cse1 (<= 2 .cse2) (<= .cse2 2) .cse3 (<= |fibo1_#res| 2)) (not (<= |fibo1_#in~n| 3))) (not (<= |fibo1_#in~n| 1)) (or (and (<= 3 |fibo1_#t~ret7|) (<= 5 .cse2) (<= 5 |fibo1_#in~n|) (<= 5 |fibo1_#res|) (<= |fibo1_#res| 5) (<= fibo1_~n 5) (<= |fibo1_#t~ret7| 3) (<= .cse2 5)) (not (<= |fibo1_#in~n| 6)) (not (<= 4 |fibo1_#in~n|))) (or (not .cse0) (and .cse1 (<= 1 .cse2) .cse3 (<= |fibo1_#res| 1) (<= .cse2 1) (<= 1 |fibo1_#res|))) (let ((.cse4 (= fibo1_~n |fibo1_#in~n|))) (or (and (or (and (<= |fibo1_#res| 21) (<= 21 |fibo1_#res|) (<= .cse2 21) (<= 21 .cse2) (<= 13 |fibo1_#t~ret7|) (<= |fibo1_#t~ret7| 13)) (<= |fibo1_#in~n| 7)) .cse4) (and (<= 9 fibo1_~n) .cse4))))) [2020-11-07 00:43:55,565 INFO L262 CegarLoopResult]: At program point L15-6(line 15) the Hoare annotation is: (let ((.cse0 (= fibo1_~n |fibo1_#in~n|))) (or (and (<= |fibo1_#in~n| 2) (<= 2 |fibo1_#in~n|) .cse0 (<= |fibo1_#res| 1) (<= 1 |fibo1_#res|)) (and (<= 7 |fibo1_#in~n|) .cse0 (or (and (<= |fibo1_#res| 21) (<= 21 |fibo1_#res|)) (<= |fibo1_#in~n| 7))) (and (<= 9 fibo1_~n) .cse0) (and (<= |fibo1_#in~n| 3) (<= 2 |fibo1_#res|) (<= |fibo1_#res| 2) .cse0 (<= 3 |fibo1_#in~n|)) (and (<= 5 |fibo1_#in~n|) (<= 5 |fibo1_#res|) (<= fibo1_~n 5) (<= |fibo1_#res| 5) .cse0))) [2020-11-07 00:43:55,565 INFO L262 CegarLoopResult]: At program point fibo1EXIT(lines 9 17) the Hoare annotation is: (let ((.cse0 (= fibo1_~n |fibo1_#in~n|))) (and (or (and .cse0 (<= |fibo1_#res| 1) (<= 1 |fibo1_#res|)) (not (<= |fibo1_#in~n| 2)) (and (<= |fibo1_#in~n| 0) .cse0)) (or (not (<= 3 |fibo1_#in~n|)) (and (<= 7 |fibo1_#in~n|) .cse0 (or (and (<= |fibo1_#res| 21) (<= 21 |fibo1_#res|)) (<= |fibo1_#in~n| 7))) (and (<= 9 fibo1_~n) .cse0) (and (<= 2 |fibo1_#res|) (<= |fibo1_#in~n| 3) (<= |fibo1_#res| 2) .cse0) (and (<= 5 |fibo1_#in~n|) (<= 5 |fibo1_#res|) (<= fibo1_~n 5) (<= |fibo1_#res| 5) .cse0)) (or (and (<= 0 |fibo1_#res|) (<= |fibo1_#res| 0)) (< 0 fibo1_~n)))) [2020-11-07 00:43:55,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:43:55 BoogieIcfgContainer [2020-11-07 00:43:55,591 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:43:55,592 INFO L168 Benchmark]: Toolchain (without parser) took 192834.08 ms. Allocated memory was 153.1 MB in the beginning and 2.2 GB in the end (delta: 2.0 GB). Free memory was 129.7 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.4 GB. Max. memory is 8.0 GB. [2020-11-07 00:43:55,593 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 153.1 MB. Free memory is still 126.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:43:55,593 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.56 ms. Allocated memory is still 153.1 MB. Free memory was 129.1 MB in the beginning and 119.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-07 00:43:55,594 INFO L168 Benchmark]: Boogie Preprocessor took 51.27 ms. Allocated memory is still 153.1 MB. Free memory was 119.7 MB in the beginning and 118.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:43:55,594 INFO L168 Benchmark]: RCFGBuilder took 383.25 ms. Allocated memory is still 153.1 MB. Free memory was 118.3 MB in the beginning and 103.0 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-11-07 00:43:55,595 INFO L168 Benchmark]: TraceAbstraction took 192010.76 ms. Allocated memory was 153.1 MB in the beginning and 2.2 GB in the end (delta: 2.0 GB). Free memory was 102.7 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. [2020-11-07 00:43:55,597 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 153.1 MB. Free memory is still 126.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 367.56 ms. Allocated memory is still 153.1 MB. Free memory was 129.1 MB in the beginning and 119.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 51.27 ms. Allocated memory is still 153.1 MB. Free memory was 119.7 MB in the beginning and 118.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 383.25 ms. Allocated memory is still 153.1 MB. Free memory was 118.3 MB in the beginning and 103.0 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 192010.76 ms. Allocated memory was 153.1 MB in the beginning and 2.2 GB in the end (delta: 2.0 GB). Free memory was 102.7 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 4]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 37]: Procedure Contract for main Derived contract for procedure main: 8 <= x - ProcedureContractResult [Line: 19]: Procedure Contract for fibo2 Derived contract for procedure fibo2: (((((((((4 <= \old(n) && \old(n) <= 4) && 3 <= \result) && \result <= 3) && n == \old(n)) || (n == \old(n) && \old(n) <= 0)) || (((13 <= \result && 7 <= \old(n)) && \result <= 13) && n == \old(n))) || ((((n <= 6 && \result <= 8) && 6 <= n) && 8 <= \result) && n == \old(n))) || (((1 <= \result && \result <= 1) && n == \old(n)) && \old(n) <= 2)) || (n == \old(n) && 8 <= \old(n))) && ((\result <= 0 && 0 <= \result) || 0 < n) - ProcedureContractResult [Line: 9]: Procedure Contract for fibo1 Derived contract for procedure fibo1: (((((n == \old(n) && \result <= 1) && 1 <= \result) || !(\old(n) <= 2)) || (\old(n) <= 0 && n == \old(n))) && ((((!(3 <= \old(n)) || ((7 <= \old(n) && n == \old(n)) && ((\result <= 21 && 21 <= \result) || \old(n) <= 7))) || (9 <= n && n == \old(n))) || (((2 <= \result && \old(n) <= 3) && \result <= 2) && n == \old(n))) || ((((5 <= \old(n) && 5 <= \result) && n <= 5) && \result <= 5) && n == \old(n)))) && ((0 <= \result && \result <= 0) || 0 < n) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 84.2s, OverallIterations: 24, TraceHistogramMax: 88, AutomataDifference: 50.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 107.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1511 SDtfs, 3266 SDslu, 4452 SDs, 0 SdLazy, 19395 SolverSat, 1982 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2784 GetRequests, 2032 SyntacticMatches, 0 SemanticMatches, 752 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8889 ImplicationChecksByTransitivity, 30.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1834occurred in iteration=17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.3s AutomataMinimizationTime, 24 MinimizatonAttempts, 1025 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 57 LocationsWithAnnotation, 16319 PreInvPairs, 37338 NumberOfFragments, 1853 HoareAnnotationTreeSize, 16319 FomulaSimplifications, 8817479 FormulaSimplificationTreeSizeReduction, 67.1s HoareSimplificationTime, 57 FomulaSimplificationsInter, 657679 FormulaSimplificationTreeSizeReductionInter, 39.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...