/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_10-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 15:42:12,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 15:42:12,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 15:42:12,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 15:42:12,527 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 15:42:12,536 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 15:42:12,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 15:42:12,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 15:42:12,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 15:42:12,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 15:42:12,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 15:42:12,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 15:42:12,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 15:42:12,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 15:42:12,556 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 15:42:12,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 15:42:12,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 15:42:12,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 15:42:12,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 15:42:12,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 15:42:12,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 15:42:12,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 15:42:12,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 15:42:12,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 15:42:12,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 15:42:12,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 15:42:12,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 15:42:12,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 15:42:12,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 15:42:12,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 15:42:12,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 15:42:12,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 15:42:12,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 15:42:12,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 15:42:12,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 15:42:12,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 15:42:12,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 15:42:12,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 15:42:12,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 15:42:12,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 15:42:12,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 15:42:12,601 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 15:42:12,641 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 15:42:12,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 15:42:12,643 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 15:42:12,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 15:42:12,644 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 15:42:12,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 15:42:12,644 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 15:42:12,645 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 15:42:12,645 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 15:42:12,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 15:42:12,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 15:42:12,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 15:42:12,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 15:42:12,647 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 15:42:12,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 15:42:12,647 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 15:42:12,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 15:42:12,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 15:42:12,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 15:42:12,648 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 15:42:12,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 15:42:12,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 15:42:12,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 15:42:12,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 15:42:12,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 15:42:12,649 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 15:42:12,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 15:42:12,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 15:42:12,650 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 15:42:12,650 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-08-21 15:42:12,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 15:42:12,973 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 15:42:12,979 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 15:42:12,983 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 15:42:12,983 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 15:42:12,984 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_10-1.c [2020-08-21 15:42:13,063 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d7fef533/9ce30c7f8ace4ad78723e18e3bfce2ea/FLAGd64bc97d1 [2020-08-21 15:42:13,555 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 15:42:13,556 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_10-1.c [2020-08-21 15:42:13,563 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d7fef533/9ce30c7f8ace4ad78723e18e3bfce2ea/FLAGd64bc97d1 [2020-08-21 15:42:13,927 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d7fef533/9ce30c7f8ace4ad78723e18e3bfce2ea [2020-08-21 15:42:13,936 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 15:42:13,938 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 15:42:13,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 15:42:13,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 15:42:13,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 15:42:13,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 03:42:13" (1/1) ... [2020-08-21 15:42:13,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@240fc400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:42:13, skipping insertion in model container [2020-08-21 15:42:13,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 03:42:13" (1/1) ... [2020-08-21 15:42:13,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 15:42:13,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 15:42:14,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 15:42:14,152 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 15:42:14,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 15:42:14,180 INFO L208 MainTranslator]: Completed translation [2020-08-21 15:42:14,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:42:14 WrapperNode [2020-08-21 15:42:14,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 15:42:14,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 15:42:14,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 15:42:14,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 15:42:14,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:42:14" (1/1) ... [2020-08-21 15:42:14,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:42:14" (1/1) ... [2020-08-21 15:42:14,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:42:14" (1/1) ... [2020-08-21 15:42:14,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:42:14" (1/1) ... [2020-08-21 15:42:14,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:42:14" (1/1) ... [2020-08-21 15:42:14,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:42:14" (1/1) ... [2020-08-21 15:42:14,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:42:14" (1/1) ... [2020-08-21 15:42:14,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 15:42:14,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 15:42:14,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 15:42:14,286 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 15:42:14,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:42:14" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-21 15:42:14,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 15:42:14,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 15:42:14,353 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-08-21 15:42:14,354 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-08-21 15:42:14,354 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 15:42:14,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 15:42:14,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 15:42:14,354 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-08-21 15:42:14,354 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-08-21 15:42:14,354 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 15:42:14,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 15:42:14,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 15:42:14,543 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 15:42:14,544 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-21 15:42:14,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 03:42:14 BoogieIcfgContainer [2020-08-21 15:42:14,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 15:42:14,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 15:42:14,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 15:42:14,553 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 15:42:14,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 03:42:13" (1/3) ... [2020-08-21 15:42:14,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71686d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 03:42:14, skipping insertion in model container [2020-08-21 15:42:14,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:42:14" (2/3) ... [2020-08-21 15:42:14,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71686d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 03:42:14, skipping insertion in model container [2020-08-21 15:42:14,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 03:42:14" (3/3) ... [2020-08-21 15:42:14,557 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_10-1.c [2020-08-21 15:42:14,569 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 15:42:14,577 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 15:42:14,592 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 15:42:14,657 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 15:42:14,657 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 15:42:14,657 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 15:42:14,658 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 15:42:14,658 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 15:42:14,658 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 15:42:14,658 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 15:42:14,659 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 15:42:14,705 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-08-21 15:42:14,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-08-21 15:42:14,720 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:14,721 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:42:14,722 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:14,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:14,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1464461757, now seen corresponding path program 1 times [2020-08-21 15:42:14,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:14,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1026851223] [2020-08-21 15:42:14,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:14,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:14,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:14,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 15:42:14,944 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1026851223] [2020-08-21 15:42:14,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 15:42:14,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 15:42:14,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236442673] [2020-08-21 15:42:14,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 15:42:14,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:14,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 15:42:14,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 15:42:14,971 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2020-08-21 15:42:15,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:15,090 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2020-08-21 15:42:15,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 15:42:15,093 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-08-21 15:42:15,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:15,105 INFO L225 Difference]: With dead ends: 44 [2020-08-21 15:42:15,106 INFO L226 Difference]: Without dead ends: 30 [2020-08-21 15:42:15,110 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-21 15:42:15,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-08-21 15:42:15,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-08-21 15:42:15,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-08-21 15:42:15,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-08-21 15:42:15,163 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 13 [2020-08-21 15:42:15,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:15,164 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-08-21 15:42:15,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 15:42:15,164 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-08-21 15:42:15,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-21 15:42:15,166 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:15,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:42:15,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 15:42:15,167 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:15,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:15,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1134800479, now seen corresponding path program 1 times [2020-08-21 15:42:15,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:15,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1068931968] [2020-08-21 15:42:15,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:15,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:15,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:15,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:15,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 15:42:15,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1068931968] [2020-08-21 15:42:15,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 15:42:15,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 15:42:15,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054541453] [2020-08-21 15:42:15,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 15:42:15,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:15,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 15:42:15,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 15:42:15,236 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 5 states. [2020-08-21 15:42:15,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:15,300 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2020-08-21 15:42:15,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 15:42:15,301 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-08-21 15:42:15,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:15,304 INFO L225 Difference]: With dead ends: 36 [2020-08-21 15:42:15,304 INFO L226 Difference]: Without dead ends: 32 [2020-08-21 15:42:15,305 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-21 15:42:15,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-08-21 15:42:15,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2020-08-21 15:42:15,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-08-21 15:42:15,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-08-21 15:42:15,316 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 14 [2020-08-21 15:42:15,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:15,316 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-08-21 15:42:15,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 15:42:15,317 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-08-21 15:42:15,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-21 15:42:15,318 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:15,318 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:42:15,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 15:42:15,319 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:15,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:15,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1592795560, now seen corresponding path program 1 times [2020-08-21 15:42:15,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:15,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [707080397] [2020-08-21 15:42:15,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:15,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:15,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:15,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:15,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 15:42:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:15,441 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 15:42:15,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [707080397] [2020-08-21 15:42:15,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:42:15,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 15:42:15,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764657249] [2020-08-21 15:42:15,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 15:42:15,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:15,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 15:42:15,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-21 15:42:15,444 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 7 states. [2020-08-21 15:42:15,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:15,540 INFO L93 Difference]: Finished difference Result 58 states and 78 transitions. [2020-08-21 15:42:15,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 15:42:15,541 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2020-08-21 15:42:15,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:15,543 INFO L225 Difference]: With dead ends: 58 [2020-08-21 15:42:15,543 INFO L226 Difference]: Without dead ends: 34 [2020-08-21 15:42:15,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-21 15:42:15,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-08-21 15:42:15,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-08-21 15:42:15,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-08-21 15:42:15,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2020-08-21 15:42:15,554 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 26 [2020-08-21 15:42:15,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:15,555 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2020-08-21 15:42:15,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 15:42:15,555 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2020-08-21 15:42:15,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-08-21 15:42:15,557 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:15,557 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] [2020-08-21 15:42:15,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 15:42:15,558 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:15,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:15,559 INFO L82 PathProgramCache]: Analyzing trace with hash 746633022, now seen corresponding path program 1 times [2020-08-21 15:42:15,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:15,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682425233] [2020-08-21 15:42:15,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:15,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:15,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:15,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:15,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:15,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:15,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:15,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:15,672 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 15:42:15,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682425233] [2020-08-21 15:42:15,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:42:15,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 15:42:15,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31345035] [2020-08-21 15:42:15,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 15:42:15,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:15,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 15:42:15,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-21 15:42:15,676 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand 7 states. [2020-08-21 15:42:15,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:15,907 INFO L93 Difference]: Finished difference Result 54 states and 74 transitions. [2020-08-21 15:42:15,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 15:42:15,908 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-08-21 15:42:15,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:15,911 INFO L225 Difference]: With dead ends: 54 [2020-08-21 15:42:15,911 INFO L226 Difference]: Without dead ends: 50 [2020-08-21 15:42:15,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-21 15:42:15,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-08-21 15:42:15,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2020-08-21 15:42:15,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-08-21 15:42:15,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 65 transitions. [2020-08-21 15:42:15,926 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 65 transitions. Word has length 27 [2020-08-21 15:42:15,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:15,927 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 65 transitions. [2020-08-21 15:42:15,927 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 15:42:15,927 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 65 transitions. [2020-08-21 15:42:15,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-08-21 15:42:15,929 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:15,929 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] [2020-08-21 15:42:15,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 15:42:15,930 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:15,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:15,930 INFO L82 PathProgramCache]: Analyzing trace with hash 986908919, now seen corresponding path program 1 times [2020-08-21 15:42:15,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:15,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1107503635] [2020-08-21 15:42:15,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:15,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:15,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:15,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:15,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:16,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:16,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:16,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 15:42:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:16,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 15:42:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:16,075 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-08-21 15:42:16,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1107503635] [2020-08-21 15:42:16,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:42:16,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-21 15:42:16,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117456052] [2020-08-21 15:42:16,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 15:42:16,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:16,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 15:42:16,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 15:42:16,078 INFO L87 Difference]: Start difference. First operand 48 states and 65 transitions. Second operand 6 states. [2020-08-21 15:42:16,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:16,157 INFO L93 Difference]: Finished difference Result 94 states and 142 transitions. [2020-08-21 15:42:16,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 15:42:16,158 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-08-21 15:42:16,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:16,160 INFO L225 Difference]: With dead ends: 94 [2020-08-21 15:42:16,160 INFO L226 Difference]: Without dead ends: 52 [2020-08-21 15:42:16,161 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 15:42:16,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-08-21 15:42:16,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-08-21 15:42:16,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-08-21 15:42:16,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2020-08-21 15:42:16,174 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 39 [2020-08-21 15:42:16,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:16,174 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2020-08-21 15:42:16,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 15:42:16,174 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2020-08-21 15:42:16,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-08-21 15:42:16,177 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:16,177 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] [2020-08-21 15:42:16,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 15:42:16,178 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:16,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:16,178 INFO L82 PathProgramCache]: Analyzing trace with hash -2100495745, now seen corresponding path program 1 times [2020-08-21 15:42:16,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:16,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [175944248] [2020-08-21 15:42:16,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:16,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:16,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:16,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:16,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:16,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:16,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:16,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:16,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:16,311 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-08-21 15:42:16,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [175944248] [2020-08-21 15:42:16,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:42:16,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-21 15:42:16,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621276278] [2020-08-21 15:42:16,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 15:42:16,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:16,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 15:42:16,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-21 15:42:16,314 INFO L87 Difference]: Start difference. First operand 52 states and 71 transitions. Second operand 8 states. [2020-08-21 15:42:16,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:16,420 INFO L93 Difference]: Finished difference Result 103 states and 158 transitions. [2020-08-21 15:42:16,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 15:42:16,421 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2020-08-21 15:42:16,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:16,423 INFO L225 Difference]: With dead ends: 103 [2020-08-21 15:42:16,423 INFO L226 Difference]: Without dead ends: 57 [2020-08-21 15:42:16,425 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-21 15:42:16,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-08-21 15:42:16,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2020-08-21 15:42:16,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-08-21 15:42:16,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 74 transitions. [2020-08-21 15:42:16,436 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 74 transitions. Word has length 40 [2020-08-21 15:42:16,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:16,437 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 74 transitions. [2020-08-21 15:42:16,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 15:42:16,437 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 74 transitions. [2020-08-21 15:42:16,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-08-21 15:42:16,440 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:16,440 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] [2020-08-21 15:42:16,441 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 15:42:16,441 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:16,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:16,441 INFO L82 PathProgramCache]: Analyzing trace with hash 208191613, now seen corresponding path program 1 times [2020-08-21 15:42:16,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:16,442 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [430846901] [2020-08-21 15:42:16,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:16,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:16,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:16,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:16,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:16,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:16,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:16,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:16,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:16,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:16,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:16,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:16,634 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-08-21 15:42:16,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [430846901] [2020-08-21 15:42:16,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:42:16,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-21 15:42:16,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186581472] [2020-08-21 15:42:16,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 15:42:16,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:16,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 15:42:16,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-21 15:42:16,639 INFO L87 Difference]: Start difference. First operand 54 states and 74 transitions. Second operand 8 states. [2020-08-21 15:42:16,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:16,840 INFO L93 Difference]: Finished difference Result 86 states and 126 transitions. [2020-08-21 15:42:16,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 15:42:16,840 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-08-21 15:42:16,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:16,843 INFO L225 Difference]: With dead ends: 86 [2020-08-21 15:42:16,843 INFO L226 Difference]: Without dead ends: 82 [2020-08-21 15:42:16,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-08-21 15:42:16,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-08-21 15:42:16,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 79. [2020-08-21 15:42:16,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-08-21 15:42:16,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 118 transitions. [2020-08-21 15:42:16,861 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 118 transitions. Word has length 41 [2020-08-21 15:42:16,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:16,861 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 118 transitions. [2020-08-21 15:42:16,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 15:42:16,862 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 118 transitions. [2020-08-21 15:42:16,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-08-21 15:42:16,865 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:16,865 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:42:16,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 15:42:16,866 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:16,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:16,866 INFO L82 PathProgramCache]: Analyzing trace with hash -405677468, now seen corresponding path program 1 times [2020-08-21 15:42:16,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:16,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730806830] [2020-08-21 15:42:16,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:16,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:16,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:16,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:16,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:16,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:16,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:16,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:16,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:16,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:16,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:17,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-21 15:42:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:17,017 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-08-21 15:42:17,018 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730806830] [2020-08-21 15:42:17,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:42:17,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-21 15:42:17,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028011185] [2020-08-21 15:42:17,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 15:42:17,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:17,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 15:42:17,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-21 15:42:17,020 INFO L87 Difference]: Start difference. First operand 79 states and 118 transitions. Second operand 8 states. [2020-08-21 15:42:17,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:17,145 INFO L93 Difference]: Finished difference Result 167 states and 288 transitions. [2020-08-21 15:42:17,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 15:42:17,146 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2020-08-21 15:42:17,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:17,148 INFO L225 Difference]: With dead ends: 167 [2020-08-21 15:42:17,148 INFO L226 Difference]: Without dead ends: 94 [2020-08-21 15:42:17,149 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-21 15:42:17,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-08-21 15:42:17,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 88. [2020-08-21 15:42:17,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-08-21 15:42:17,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 134 transitions. [2020-08-21 15:42:17,166 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 134 transitions. Word has length 54 [2020-08-21 15:42:17,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:17,167 INFO L479 AbstractCegarLoop]: Abstraction has 88 states and 134 transitions. [2020-08-21 15:42:17,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 15:42:17,167 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 134 transitions. [2020-08-21 15:42:17,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-08-21 15:42:17,170 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:17,170 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 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] [2020-08-21 15:42:17,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 15:42:17,171 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:17,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:17,171 INFO L82 PathProgramCache]: Analyzing trace with hash -242988780, now seen corresponding path program 1 times [2020-08-21 15:42:17,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:17,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1884647470] [2020-08-21 15:42:17,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:17,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:17,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:17,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:17,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:17,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:17,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:17,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:17,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:17,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:17,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:17,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:17,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:17,316 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-08-21 15:42:17,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1884647470] [2020-08-21 15:42:17,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:42:17,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 15:42:17,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788681577] [2020-08-21 15:42:17,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 15:42:17,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:17,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 15:42:17,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-08-21 15:42:17,319 INFO L87 Difference]: Start difference. First operand 88 states and 134 transitions. Second operand 10 states. [2020-08-21 15:42:17,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:17,532 INFO L93 Difference]: Finished difference Result 188 states and 331 transitions. [2020-08-21 15:42:17,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-21 15:42:17,533 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 55 [2020-08-21 15:42:17,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:17,535 INFO L225 Difference]: With dead ends: 188 [2020-08-21 15:42:17,535 INFO L226 Difference]: Without dead ends: 109 [2020-08-21 15:42:17,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-08-21 15:42:17,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-08-21 15:42:17,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 100. [2020-08-21 15:42:17,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-08-21 15:42:17,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 158 transitions. [2020-08-21 15:42:17,553 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 158 transitions. Word has length 55 [2020-08-21 15:42:17,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:17,554 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 158 transitions. [2020-08-21 15:42:17,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 15:42:17,554 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 158 transitions. [2020-08-21 15:42:17,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-08-21 15:42:17,556 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:17,556 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:42:17,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 15:42:17,557 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:17,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:17,557 INFO L82 PathProgramCache]: Analyzing trace with hash -908952008, now seen corresponding path program 2 times [2020-08-21 15:42:17,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:17,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [420562017] [2020-08-21 15:42:17,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:17,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:17,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:17,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:17,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:17,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:17,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:17,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:17,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:17,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:17,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:17,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:17,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:17,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:17,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:17,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:17,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:17,850 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 30 proven. 52 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-08-21 15:42:17,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [420562017] [2020-08-21 15:42:17,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:42:17,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-21 15:42:17,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080202233] [2020-08-21 15:42:17,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 15:42:17,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:17,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 15:42:17,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-08-21 15:42:17,855 INFO L87 Difference]: Start difference. First operand 100 states and 158 transitions. Second operand 12 states. [2020-08-21 15:42:18,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:18,270 INFO L93 Difference]: Finished difference Result 199 states and 354 transitions. [2020-08-21 15:42:18,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-21 15:42:18,270 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 82 [2020-08-21 15:42:18,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:18,274 INFO L225 Difference]: With dead ends: 199 [2020-08-21 15:42:18,274 INFO L226 Difference]: Without dead ends: 86 [2020-08-21 15:42:18,276 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-08-21 15:42:18,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-08-21 15:42:18,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 71. [2020-08-21 15:42:18,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-08-21 15:42:18,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 93 transitions. [2020-08-21 15:42:18,295 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 93 transitions. Word has length 82 [2020-08-21 15:42:18,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:18,295 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 93 transitions. [2020-08-21 15:42:18,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-21 15:42:18,296 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 93 transitions. [2020-08-21 15:42:18,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-08-21 15:42:18,297 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:18,298 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:42:18,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-21 15:42:18,298 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:18,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:18,299 INFO L82 PathProgramCache]: Analyzing trace with hash -2119203654, now seen corresponding path program 2 times [2020-08-21 15:42:18,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:18,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2084601432] [2020-08-21 15:42:18,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:18,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:18,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:18,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:18,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:18,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:18,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:18,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:18,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:18,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:18,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:18,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-21 15:42:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:18,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:18,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:18,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:18,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:18,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:18,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:18,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:18,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:18,612 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 44 proven. 79 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2020-08-21 15:42:18,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2084601432] [2020-08-21 15:42:18,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:42:18,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 15:42:18,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127893686] [2020-08-21 15:42:18,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 15:42:18,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:18,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 15:42:18,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-08-21 15:42:18,615 INFO L87 Difference]: Start difference. First operand 71 states and 93 transitions. Second operand 10 states. [2020-08-21 15:42:18,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:18,824 INFO L93 Difference]: Finished difference Result 142 states and 204 transitions. [2020-08-21 15:42:18,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 15:42:18,825 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 110 [2020-08-21 15:42:18,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:18,826 INFO L225 Difference]: With dead ends: 142 [2020-08-21 15:42:18,826 INFO L226 Difference]: Without dead ends: 78 [2020-08-21 15:42:18,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-08-21 15:42:18,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-08-21 15:42:18,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-08-21 15:42:18,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-08-21 15:42:18,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2020-08-21 15:42:18,844 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 110 [2020-08-21 15:42:18,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:18,844 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2020-08-21 15:42:18,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 15:42:18,845 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2020-08-21 15:42:18,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-08-21 15:42:18,847 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:18,847 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 13, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:42:18,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-21 15:42:18,847 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:18,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:18,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1263382818, now seen corresponding path program 3 times [2020-08-21 15:42:18,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:18,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1898528735] [2020-08-21 15:42:18,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:18,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:18,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:18,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:18,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:18,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:19,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:19,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:19,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:19,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:19,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:19,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:19,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:19,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:19,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:19,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:19,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:19,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:19,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:19,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:19,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:19,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-21 15:42:19,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:19,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:19,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:19,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:19,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:19,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 15:42:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:19,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:19,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:19,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:19,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:19,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:19,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:19,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:19,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:19,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:19,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:19,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:19,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:19,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-21 15:42:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:19,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:19,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:19,468 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 133 proven. 373 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2020-08-21 15:42:19,469 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1898528735] [2020-08-21 15:42:19,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:42:19,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-08-21 15:42:19,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832949203] [2020-08-21 15:42:19,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-21 15:42:19,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:19,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-21 15:42:19,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2020-08-21 15:42:19,471 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand 15 states. [2020-08-21 15:42:20,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:20,035 INFO L93 Difference]: Finished difference Result 184 states and 282 transitions. [2020-08-21 15:42:20,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-08-21 15:42:20,035 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 192 [2020-08-21 15:42:20,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:20,037 INFO L225 Difference]: With dead ends: 184 [2020-08-21 15:42:20,037 INFO L226 Difference]: Without dead ends: 111 [2020-08-21 15:42:20,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=675, Unknown=0, NotChecked=0, Total=812 [2020-08-21 15:42:20,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-08-21 15:42:20,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 99. [2020-08-21 15:42:20,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-08-21 15:42:20,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 133 transitions. [2020-08-21 15:42:20,048 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 133 transitions. Word has length 192 [2020-08-21 15:42:20,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:20,049 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 133 transitions. [2020-08-21 15:42:20,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-21 15:42:20,049 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 133 transitions. [2020-08-21 15:42:20,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-08-21 15:42:20,051 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:20,051 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 8, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:42:20,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-21 15:42:20,051 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:20,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:20,052 INFO L82 PathProgramCache]: Analyzing trace with hash -2102107778, now seen corresponding path program 1 times [2020-08-21 15:42:20,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:20,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070178951] [2020-08-21 15:42:20,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:20,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:20,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:20,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:20,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:20,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:20,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 15:42:20,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:20,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:20,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,323 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 109 proven. 85 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2020-08-21 15:42:20,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070178951] [2020-08-21 15:42:20,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:42:20,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-21 15:42:20,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103391465] [2020-08-21 15:42:20,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 15:42:20,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:20,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 15:42:20,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-08-21 15:42:20,326 INFO L87 Difference]: Start difference. First operand 99 states and 133 transitions. Second operand 11 states. [2020-08-21 15:42:20,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:20,592 INFO L93 Difference]: Finished difference Result 188 states and 266 transitions. [2020-08-21 15:42:20,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-21 15:42:20,593 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 136 [2020-08-21 15:42:20,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:20,595 INFO L225 Difference]: With dead ends: 188 [2020-08-21 15:42:20,596 INFO L226 Difference]: Without dead ends: 101 [2020-08-21 15:42:20,598 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-08-21 15:42:20,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-08-21 15:42:20,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 98. [2020-08-21 15:42:20,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-08-21 15:42:20,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 130 transitions. [2020-08-21 15:42:20,615 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 130 transitions. Word has length 136 [2020-08-21 15:42:20,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:20,618 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 130 transitions. [2020-08-21 15:42:20,618 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 15:42:20,618 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 130 transitions. [2020-08-21 15:42:20,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-08-21 15:42:20,621 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:20,622 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:42:20,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-21 15:42:20,622 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:20,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:20,623 INFO L82 PathProgramCache]: Analyzing trace with hash 677703633, now seen corresponding path program 2 times [2020-08-21 15:42:20,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:20,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [909940080] [2020-08-21 15:42:20,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:20,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:20,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:20,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:20,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:20,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:20,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:20,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:20,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:20,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:20,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:21,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:21,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:21,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:21,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:21,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:21,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:21,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:21,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:21,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-21 15:42:21,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:21,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:21,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:21,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:21,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:21,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:21,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:21,131 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 138 proven. 250 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2020-08-21 15:42:21,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [909940080] [2020-08-21 15:42:21,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:42:21,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-08-21 15:42:21,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228077894] [2020-08-21 15:42:21,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-21 15:42:21,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:21,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-21 15:42:21,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-08-21 15:42:21,134 INFO L87 Difference]: Start difference. First operand 98 states and 130 transitions. Second operand 14 states. [2020-08-21 15:42:21,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:21,719 INFO L93 Difference]: Finished difference Result 224 states and 343 transitions. [2020-08-21 15:42:21,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-21 15:42:21,719 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 177 [2020-08-21 15:42:21,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:21,721 INFO L225 Difference]: With dead ends: 224 [2020-08-21 15:42:21,722 INFO L226 Difference]: Without dead ends: 131 [2020-08-21 15:42:21,724 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=625, Unknown=0, NotChecked=0, Total=756 [2020-08-21 15:42:21,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-08-21 15:42:21,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 114. [2020-08-21 15:42:21,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-08-21 15:42:21,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 154 transitions. [2020-08-21 15:42:21,742 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 154 transitions. Word has length 177 [2020-08-21 15:42:21,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:21,743 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 154 transitions. [2020-08-21 15:42:21,743 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-21 15:42:21,743 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 154 transitions. [2020-08-21 15:42:21,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-08-21 15:42:21,746 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:21,746 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:42:21,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-21 15:42:21,747 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:21,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:21,747 INFO L82 PathProgramCache]: Analyzing trace with hash 307857833, now seen corresponding path program 3 times [2020-08-21 15:42:21,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:21,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1497388156] [2020-08-21 15:42:21,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:21,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:21,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:21,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:21,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:21,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:21,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:21,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:21,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:21,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:21,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:22,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:22,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:22,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:22,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:22,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:22,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:22,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,156 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 45 proven. 260 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2020-08-21 15:42:22,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1497388156] [2020-08-21 15:42:22,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:42:22,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-21 15:42:22,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875823075] [2020-08-21 15:42:22,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 15:42:22,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:22,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 15:42:22,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-08-21 15:42:22,159 INFO L87 Difference]: Start difference. First operand 114 states and 154 transitions. Second operand 11 states. [2020-08-21 15:42:22,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:22,458 INFO L93 Difference]: Finished difference Result 244 states and 371 transitions. [2020-08-21 15:42:22,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-21 15:42:22,459 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 177 [2020-08-21 15:42:22,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:22,463 INFO L225 Difference]: With dead ends: 244 [2020-08-21 15:42:22,463 INFO L226 Difference]: Without dead ends: 240 [2020-08-21 15:42:22,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2020-08-21 15:42:22,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-08-21 15:42:22,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 220. [2020-08-21 15:42:22,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-08-21 15:42:22,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 331 transitions. [2020-08-21 15:42:22,490 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 331 transitions. Word has length 177 [2020-08-21 15:42:22,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:22,491 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 331 transitions. [2020-08-21 15:42:22,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 15:42:22,491 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 331 transitions. [2020-08-21 15:42:22,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-08-21 15:42:22,496 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:22,496 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 18, 18, 17, 16, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 6, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:42:22,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-08-21 15:42:22,497 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:22,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:22,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1318955698, now seen corresponding path program 4 times [2020-08-21 15:42:22,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:22,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [690145712] [2020-08-21 15:42:22,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:22,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:22,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:22,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:22,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:22,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:22,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:22,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 15:42:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:22,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-08-21 15:42:22,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:22,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:22,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:22,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:22,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:22,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:22,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 15:42:22,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:22,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,107 INFO L134 CoverageAnalysis]: Checked inductivity of 2032 backedges. 167 proven. 362 refuted. 0 times theorem prover too weak. 1503 trivial. 0 not checked. [2020-08-21 15:42:23,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [690145712] [2020-08-21 15:42:23,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:42:23,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-21 15:42:23,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683982874] [2020-08-21 15:42:23,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 15:42:23,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:23,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 15:42:23,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-08-21 15:42:23,110 INFO L87 Difference]: Start difference. First operand 220 states and 331 transitions. Second operand 11 states. [2020-08-21 15:42:23,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:23,347 INFO L93 Difference]: Finished difference Result 429 states and 677 transitions. [2020-08-21 15:42:23,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-21 15:42:23,348 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 274 [2020-08-21 15:42:23,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:23,352 INFO L225 Difference]: With dead ends: 429 [2020-08-21 15:42:23,352 INFO L226 Difference]: Without dead ends: 225 [2020-08-21 15:42:23,354 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-08-21 15:42:23,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-08-21 15:42:23,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 222. [2020-08-21 15:42:23,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-08-21 15:42:23,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 316 transitions. [2020-08-21 15:42:23,373 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 316 transitions. Word has length 274 [2020-08-21 15:42:23,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:23,374 INFO L479 AbstractCegarLoop]: Abstraction has 222 states and 316 transitions. [2020-08-21 15:42:23,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 15:42:23,374 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 316 transitions. [2020-08-21 15:42:23,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-08-21 15:42:23,379 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:23,379 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 17, 16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 6, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:42:23,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-08-21 15:42:23,380 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:23,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:23,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1614185823, now seen corresponding path program 5 times [2020-08-21 15:42:23,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:23,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1785301166] [2020-08-21 15:42:23,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:23,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:23,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:23,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:23,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:23,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:23,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:23,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:23,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 15:42:23,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:23,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:23,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:23,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:23,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:23,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:24,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:24,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:24,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:24,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:24,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:24,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:24,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:24,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:24,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:24,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:24,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2216 backedges. 94 proven. 558 refuted. 0 times theorem prover too weak. 1564 trivial. 0 not checked. [2020-08-21 15:42:24,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1785301166] [2020-08-21 15:42:24,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:42:24,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-21 15:42:24,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349559314] [2020-08-21 15:42:24,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 15:42:24,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:24,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 15:42:24,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-08-21 15:42:24,131 INFO L87 Difference]: Start difference. First operand 222 states and 316 transitions. Second operand 12 states. [2020-08-21 15:42:24,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:24,466 INFO L93 Difference]: Finished difference Result 469 states and 720 transitions. [2020-08-21 15:42:24,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-21 15:42:24,466 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 286 [2020-08-21 15:42:24,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:24,477 INFO L225 Difference]: With dead ends: 469 [2020-08-21 15:42:24,478 INFO L226 Difference]: Without dead ends: 465 [2020-08-21 15:42:24,480 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2020-08-21 15:42:24,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-08-21 15:42:24,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 445. [2020-08-21 15:42:24,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 445 states. [2020-08-21 15:42:24,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 682 transitions. [2020-08-21 15:42:24,537 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 682 transitions. Word has length 286 [2020-08-21 15:42:24,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:24,537 INFO L479 AbstractCegarLoop]: Abstraction has 445 states and 682 transitions. [2020-08-21 15:42:24,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-21 15:42:24,538 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 682 transitions. [2020-08-21 15:42:24,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2020-08-21 15:42:24,545 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:24,545 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 26, 26, 22, 21, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 9, 8, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:42:24,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-08-21 15:42:24,546 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:24,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:24,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1485391483, now seen corresponding path program 6 times [2020-08-21 15:42:24,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:24,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1544807585] [2020-08-21 15:42:24,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:24,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:24,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:24,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:24,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:24,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:24,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:24,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:24,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:24,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:24,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:24,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:24,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:25,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:25,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:25,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:25,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:25,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-08-21 15:42:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:25,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:25,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:25,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:25,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:25,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:25,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-08-21 15:42:25,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:25,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:25,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:25,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:25,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:25,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:25,712 INFO L134 CoverageAnalysis]: Checked inductivity of 3769 backedges. 297 proven. 795 refuted. 0 times theorem prover too weak. 2677 trivial. 0 not checked. [2020-08-21 15:42:25,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1544807585] [2020-08-21 15:42:25,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:42:25,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-08-21 15:42:25,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937057649] [2020-08-21 15:42:25,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-21 15:42:25,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:25,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-21 15:42:25,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-08-21 15:42:25,727 INFO L87 Difference]: Start difference. First operand 445 states and 682 transitions. Second operand 14 states. [2020-08-21 15:42:26,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:26,356 INFO L93 Difference]: Finished difference Result 924 states and 1512 transitions. [2020-08-21 15:42:26,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-21 15:42:26,357 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 368 [2020-08-21 15:42:26,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:26,375 INFO L225 Difference]: With dead ends: 924 [2020-08-21 15:42:26,375 INFO L226 Difference]: Without dead ends: 493 [2020-08-21 15:42:26,382 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2020-08-21 15:42:26,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2020-08-21 15:42:26,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 439. [2020-08-21 15:42:26,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 439 states. [2020-08-21 15:42:26,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 658 transitions. [2020-08-21 15:42:26,432 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 658 transitions. Word has length 368 [2020-08-21 15:42:26,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:26,433 INFO L479 AbstractCegarLoop]: Abstraction has 439 states and 658 transitions. [2020-08-21 15:42:26,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-21 15:42:26,433 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 658 transitions. [2020-08-21 15:42:26,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2020-08-21 15:42:26,447 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:26,448 INFO L422 BasicCegarLoop]: trace histogram [43, 43, 40, 40, 34, 33, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 13, 13, 10, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:42:26,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-08-21 15:42:26,448 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:26,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:26,449 INFO L82 PathProgramCache]: Analyzing trace with hash -1718075054, now seen corresponding path program 7 times [2020-08-21 15:42:26,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:26,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [573898837] [2020-08-21 15:42:26,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:26,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:26,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:26,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:26,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:27,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:27,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:27,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:27,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:27,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:27,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 15:42:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:27,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:27,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:27,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:27,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:27,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2020-08-21 15:42:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:27,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:27,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:28,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:28,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:28,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:28,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:28,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:28,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:28,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:28,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:28,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 15:42:28,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:28,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:28,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:28,681 INFO L134 CoverageAnalysis]: Checked inductivity of 9421 backedges. 593 proven. 1863 refuted. 0 times theorem prover too weak. 6965 trivial. 0 not checked. [2020-08-21 15:42:28,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [573898837] [2020-08-21 15:42:28,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:42:28,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-08-21 15:42:28,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145208507] [2020-08-21 15:42:28,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-21 15:42:28,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:28,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-21 15:42:28,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-08-21 15:42:28,686 INFO L87 Difference]: Start difference. First operand 439 states and 658 transitions. Second operand 18 states. [2020-08-21 15:42:29,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:29,789 INFO L93 Difference]: Finished difference Result 836 states and 1442 transitions. [2020-08-21 15:42:29,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-08-21 15:42:29,790 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 572 [2020-08-21 15:42:29,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:29,800 INFO L225 Difference]: With dead ends: 836 [2020-08-21 15:42:29,800 INFO L226 Difference]: Without dead ends: 395 [2020-08-21 15:42:29,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=261, Invalid=1545, Unknown=0, NotChecked=0, Total=1806 [2020-08-21 15:42:29,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-08-21 15:42:29,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 327. [2020-08-21 15:42:29,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2020-08-21 15:42:29,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 502 transitions. [2020-08-21 15:42:29,848 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 502 transitions. Word has length 572 [2020-08-21 15:42:29,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:29,849 INFO L479 AbstractCegarLoop]: Abstraction has 327 states and 502 transitions. [2020-08-21 15:42:29,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-21 15:42:29,850 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 502 transitions. [2020-08-21 15:42:29,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2020-08-21 15:42:29,860 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:29,860 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 24, 24, 21, 20, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 9, 7, 6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:42:29,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-08-21 15:42:29,861 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:29,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:29,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1572493120, now seen corresponding path program 8 times [2020-08-21 15:42:29,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:29,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [32898772] [2020-08-21 15:42:29,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:29,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:29,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:30,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:30,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:30,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:30,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:30,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:30,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:30,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:30,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:30,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:30,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:30,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:30,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:30,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:30,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 15:42:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:30,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:30,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:30,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:30,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-21 15:42:30,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:30,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:30,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:30,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:30,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:30,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:30,881 INFO L134 CoverageAnalysis]: Checked inductivity of 3484 backedges. 422 proven. 756 refuted. 0 times theorem prover too weak. 2306 trivial. 0 not checked. [2020-08-21 15:42:30,881 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [32898772] [2020-08-21 15:42:30,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:42:30,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-21 15:42:30,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756562388] [2020-08-21 15:42:30,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-21 15:42:30,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:30,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-21 15:42:30,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-08-21 15:42:30,883 INFO L87 Difference]: Start difference. First operand 327 states and 502 transitions. Second operand 16 states. [2020-08-21 15:42:31,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:31,526 INFO L93 Difference]: Finished difference Result 720 states and 1202 transitions. [2020-08-21 15:42:31,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-21 15:42:31,526 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 354 [2020-08-21 15:42:31,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:31,533 INFO L225 Difference]: With dead ends: 720 [2020-08-21 15:42:31,533 INFO L226 Difference]: Without dead ends: 415 [2020-08-21 15:42:31,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=738, Unknown=0, NotChecked=0, Total=870 [2020-08-21 15:42:31,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-08-21 15:42:31,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 375. [2020-08-21 15:42:31,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-08-21 15:42:31,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 561 transitions. [2020-08-21 15:42:31,570 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 561 transitions. Word has length 354 [2020-08-21 15:42:31,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:31,571 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 561 transitions. [2020-08-21 15:42:31,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-21 15:42:31,571 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 561 transitions. [2020-08-21 15:42:31,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2020-08-21 15:42:31,575 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:31,576 INFO L422 BasicCegarLoop]: trace histogram [42, 42, 41, 41, 34, 33, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 14, 12, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:42:31,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-08-21 15:42:31,576 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:31,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:31,577 INFO L82 PathProgramCache]: Analyzing trace with hash 2122481566, now seen corresponding path program 9 times [2020-08-21 15:42:31,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:31,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [603524307] [2020-08-21 15:42:31,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:31,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:31,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:31,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:32,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:32,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:32,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 15:42:32,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:32,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:32,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-21 15:42:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:32,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:32,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 15:42:32,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:32,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:32,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:32,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:32,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:33,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:33,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:33,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:33,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:33,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:33,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:33,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:33,357 INFO L134 CoverageAnalysis]: Checked inductivity of 9413 backedges. 913 proven. 1781 refuted. 0 times theorem prover too weak. 6719 trivial. 0 not checked. [2020-08-21 15:42:33,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [603524307] [2020-08-21 15:42:33,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:42:33,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-08-21 15:42:33,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763330385] [2020-08-21 15:42:33,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-08-21 15:42:33,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:33,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-08-21 15:42:33,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2020-08-21 15:42:33,360 INFO L87 Difference]: Start difference. First operand 375 states and 561 transitions. Second operand 20 states. [2020-08-21 15:42:34,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:34,727 INFO L93 Difference]: Finished difference Result 620 states and 1014 transitions. [2020-08-21 15:42:34,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-08-21 15:42:34,728 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 572 [2020-08-21 15:42:34,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:34,733 INFO L225 Difference]: With dead ends: 620 [2020-08-21 15:42:34,733 INFO L226 Difference]: Without dead ends: 227 [2020-08-21 15:42:34,737 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=343, Invalid=2207, Unknown=0, NotChecked=0, Total=2550 [2020-08-21 15:42:34,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2020-08-21 15:42:34,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 180. [2020-08-21 15:42:34,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-08-21 15:42:34,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 258 transitions. [2020-08-21 15:42:34,753 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 258 transitions. Word has length 572 [2020-08-21 15:42:34,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:34,754 INFO L479 AbstractCegarLoop]: Abstraction has 180 states and 258 transitions. [2020-08-21 15:42:34,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-08-21 15:42:34,755 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 258 transitions. [2020-08-21 15:42:34,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 751 [2020-08-21 15:42:34,762 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:34,762 INFO L422 BasicCegarLoop]: trace histogram [56, 56, 53, 53, 46, 43, 28, 28, 28, 28, 28, 28, 28, 26, 26, 26, 26, 26, 26, 26, 20, 15, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:42:34,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-08-21 15:42:34,763 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:34,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:34,763 INFO L82 PathProgramCache]: Analyzing trace with hash 184907743, now seen corresponding path program 10 times [2020-08-21 15:42:34,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:34,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [3000271] [2020-08-21 15:42:34,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:35,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:35,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:35,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:35,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:35,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:35,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:35,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:35,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:35,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:35,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:35,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:35,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:35,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-08-21 15:42:35,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:35,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:35,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:35,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:35,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:35,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:35,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:35,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:35,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2020-08-21 15:42:36,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:36,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:36,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:36,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:36,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-08-21 15:42:36,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:36,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:36,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:36,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:36,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:36,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:36,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:36,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:36,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 596 [2020-08-21 15:42:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:36,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:36,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:36,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:36,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:36,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:36,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:36,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:36,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:36,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:36,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:37,077 INFO L134 CoverageAnalysis]: Checked inductivity of 16422 backedges. 530 proven. 2094 refuted. 0 times theorem prover too weak. 13798 trivial. 0 not checked. [2020-08-21 15:42:37,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [3000271] [2020-08-21 15:42:37,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:42:37,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-08-21 15:42:37,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838942084] [2020-08-21 15:42:37,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-21 15:42:37,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:37,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-21 15:42:37,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-08-21 15:42:37,080 INFO L87 Difference]: Start difference. First operand 180 states and 258 transitions. Second operand 14 states. [2020-08-21 15:42:37,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:37,554 INFO L93 Difference]: Finished difference Result 348 states and 520 transitions. [2020-08-21 15:42:37,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-08-21 15:42:37,556 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 750 [2020-08-21 15:42:37,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:37,559 INFO L225 Difference]: With dead ends: 348 [2020-08-21 15:42:37,559 INFO L226 Difference]: Without dead ends: 190 [2020-08-21 15:42:37,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2020-08-21 15:42:37,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-08-21 15:42:37,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 187. [2020-08-21 15:42:37,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-08-21 15:42:37,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 264 transitions. [2020-08-21 15:42:37,580 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 264 transitions. Word has length 750 [2020-08-21 15:42:37,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:37,581 INFO L479 AbstractCegarLoop]: Abstraction has 187 states and 264 transitions. [2020-08-21 15:42:37,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-21 15:42:37,581 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 264 transitions. [2020-08-21 15:42:37,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1199 [2020-08-21 15:42:37,595 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:37,595 INFO L422 BasicCegarLoop]: trace histogram [90, 90, 85, 85, 72, 69, 45, 45, 45, 45, 45, 45, 45, 42, 42, 42, 42, 42, 42, 42, 30, 24, 18, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:42:37,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-08-21 15:42:37,596 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:37,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:37,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1119291118, now seen corresponding path program 11 times [2020-08-21 15:42:37,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:37,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1196958893] [2020-08-21 15:42:37,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:38,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:38,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:38,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:38,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:38,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:38,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:39,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 15:42:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:39,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:39,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:39,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-21 15:42:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:39,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:39,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:39,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:39,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:39,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 15:42:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:39,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:39,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:39,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-21 15:42:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:39,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:39,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:39,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 595 [2020-08-21 15:42:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:40,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:40,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:40,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:40,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:40,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:40,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:40,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 15:42:40,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:40,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-21 15:42:40,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:40,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:40,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 15:42:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:40,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-21 15:42:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:40,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:40,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:40,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:41,981 INFO L134 CoverageAnalysis]: Checked inductivity of 42606 backedges. 731 proven. 4268 refuted. 0 times theorem prover too weak. 37607 trivial. 0 not checked. [2020-08-21 15:42:41,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1196958893] [2020-08-21 15:42:41,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:42:41,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-21 15:42:41,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124192729] [2020-08-21 15:42:41,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-21 15:42:41,983 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:41,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-21 15:42:41,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-08-21 15:42:41,984 INFO L87 Difference]: Start difference. First operand 187 states and 264 transitions. Second operand 16 states. [2020-08-21 15:42:42,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:42,638 INFO L93 Difference]: Finished difference Result 373 states and 556 transitions. [2020-08-21 15:42:42,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-21 15:42:42,639 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 1198 [2020-08-21 15:42:42,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:42,642 INFO L225 Difference]: With dead ends: 373 [2020-08-21 15:42:42,642 INFO L226 Difference]: Without dead ends: 208 [2020-08-21 15:42:42,644 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=738, Unknown=0, NotChecked=0, Total=870 [2020-08-21 15:42:42,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-08-21 15:42:42,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 191. [2020-08-21 15:42:42,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-08-21 15:42:42,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 270 transitions. [2020-08-21 15:42:42,658 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 270 transitions. Word has length 1198 [2020-08-21 15:42:42,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:42,658 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 270 transitions. [2020-08-21 15:42:42,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-21 15:42:42,659 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 270 transitions. [2020-08-21 15:42:42,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 900 [2020-08-21 15:42:42,668 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:42,668 INFO L422 BasicCegarLoop]: trace histogram [66, 66, 65, 65, 53, 53, 33, 33, 33, 33, 33, 33, 33, 32, 32, 32, 32, 32, 32, 32, 21, 20, 13, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:42:42,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-08-21 15:42:42,669 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:42,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:42,669 INFO L82 PathProgramCache]: Analyzing trace with hash -15983332, now seen corresponding path program 12 times [2020-08-21 15:42:42,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:42,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1468843987] [2020-08-21 15:42:42,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:43,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:43,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:43,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:43,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:43,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:43,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:43,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:43,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:44,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 15:42:44,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:44,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:44,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:44,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:44,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-21 15:42:44,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:44,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:44,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:44,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2020-08-21 15:42:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:44,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:44,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:44,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:44,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:44,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:44,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:44,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:44,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:44,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:44,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 15:42:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:45,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:45,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:45,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:45,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:45,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:45,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:45,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:45,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:45,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:45,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-21 15:42:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:45,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:45,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:45,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:45,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2020-08-21 15:42:45,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:45,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:45,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:45,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:45,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:45,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:45,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:45,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:45,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:45,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:45,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:45,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:45,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:46,185 INFO L134 CoverageAnalysis]: Checked inductivity of 23752 backedges. 899 proven. 3213 refuted. 0 times theorem prover too weak. 19640 trivial. 0 not checked. [2020-08-21 15:42:46,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1468843987] [2020-08-21 15:42:46,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:42:46,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-08-21 15:42:46,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133945341] [2020-08-21 15:42:46,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-21 15:42:46,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:46,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-21 15:42:46,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-08-21 15:42:46,189 INFO L87 Difference]: Start difference. First operand 191 states and 270 transitions. Second operand 18 states. [2020-08-21 15:42:47,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:47,011 INFO L93 Difference]: Finished difference Result 371 states and 552 transitions. [2020-08-21 15:42:47,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-08-21 15:42:47,011 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 899 [2020-08-21 15:42:47,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:47,015 INFO L225 Difference]: With dead ends: 371 [2020-08-21 15:42:47,015 INFO L226 Difference]: Without dead ends: 202 [2020-08-21 15:42:47,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=196, Invalid=1210, Unknown=0, NotChecked=0, Total=1406 [2020-08-21 15:42:47,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-08-21 15:42:47,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 184. [2020-08-21 15:42:47,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-08-21 15:42:47,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 255 transitions. [2020-08-21 15:42:47,034 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 255 transitions. Word has length 899 [2020-08-21 15:42:47,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:47,034 INFO L479 AbstractCegarLoop]: Abstraction has 184 states and 255 transitions. [2020-08-21 15:42:47,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-21 15:42:47,035 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 255 transitions. [2020-08-21 15:42:47,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2020-08-21 15:42:47,040 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:47,040 INFO L422 BasicCegarLoop]: trace histogram [47, 47, 46, 46, 38, 37, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 15, 14, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:42:47,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-08-21 15:42:47,044 INFO L427 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:47,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:47,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1983594753, now seen corresponding path program 13 times [2020-08-21 15:42:47,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:47,045 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1489730715] [2020-08-21 15:42:47,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:47,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:47,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:47,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:47,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:47,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:47,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:47,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:47,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:47,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:47,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:47,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:47,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:47,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:47,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:47,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:47,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:47,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:47,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:47,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:47,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:47,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:47,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:47,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:47,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:47,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:47,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:47,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:47,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:47,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:47,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:47,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:47,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:47,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:47,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:47,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:47,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:47,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:48,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:48,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:48,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 15:42:48,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:48,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:48,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-21 15:42:48,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:48,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:48,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:48,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:48,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:48,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:48,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:48,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:48,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2020-08-21 15:42:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:48,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:48,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:48,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:48,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:48,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:48,863 INFO L134 CoverageAnalysis]: Checked inductivity of 11857 backedges. 1376 proven. 1699 refuted. 0 times theorem prover too weak. 8782 trivial. 0 not checked. [2020-08-21 15:42:48,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1489730715] [2020-08-21 15:42:48,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:42:48,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-08-21 15:42:48,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374526177] [2020-08-21 15:42:48,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-08-21 15:42:48,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:48,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-08-21 15:42:48,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2020-08-21 15:42:48,865 INFO L87 Difference]: Start difference. First operand 184 states and 255 transitions. Second operand 20 states. [2020-08-21 15:42:49,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:49,972 INFO L93 Difference]: Finished difference Result 395 states and 605 transitions. [2020-08-21 15:42:49,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-08-21 15:42:49,974 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 640 [2020-08-21 15:42:49,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:49,983 INFO L225 Difference]: With dead ends: 395 [2020-08-21 15:42:49,984 INFO L226 Difference]: Without dead ends: 229 [2020-08-21 15:42:49,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=261, Invalid=1719, Unknown=0, NotChecked=0, Total=1980 [2020-08-21 15:42:49,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-08-21 15:42:49,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 192. [2020-08-21 15:42:49,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-08-21 15:42:50,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 264 transitions. [2020-08-21 15:42:50,000 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 264 transitions. Word has length 640 [2020-08-21 15:42:50,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:50,001 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 264 transitions. [2020-08-21 15:42:50,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-08-21 15:42:50,001 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 264 transitions. [2020-08-21 15:42:50,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 968 [2020-08-21 15:42:50,010 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:50,011 INFO L422 BasicCegarLoop]: trace histogram [71, 71, 70, 70, 57, 57, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 22, 22, 14, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:42:50,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-08-21 15:42:50,011 INFO L427 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:50,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:50,012 INFO L82 PathProgramCache]: Analyzing trace with hash 801018439, now seen corresponding path program 14 times [2020-08-21 15:42:50,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:50,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1203756649] [2020-08-21 15:42:50,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:50,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:50,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:50,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:50,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:50,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:50,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:51,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:51,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:51,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:51,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:51,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:51,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:51,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:51,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 15:42:51,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:51,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:51,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:51,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:51,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:51,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-21 15:42:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:51,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:51,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:51,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:51,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:51,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:51,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:51,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 15:42:51,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:51,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:51,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:51,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:51,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:51,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-21 15:42:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:51,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:51,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:51,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 677 [2020-08-21 15:42:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:52,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:52,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:52,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:52,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:52,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:52,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:52,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:52,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 15:42:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:52,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:52,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:52,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:52,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:52,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:52,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:52,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:52,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:53,084 INFO L134 CoverageAnalysis]: Checked inductivity of 27552 backedges. 1354 proven. 4110 refuted. 0 times theorem prover too weak. 22088 trivial. 0 not checked. [2020-08-21 15:42:53,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1203756649] [2020-08-21 15:42:53,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:42:53,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-08-21 15:42:53,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571048076] [2020-08-21 15:42:53,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-08-21 15:42:53,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:53,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-08-21 15:42:53,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2020-08-21 15:42:53,087 INFO L87 Difference]: Start difference. First operand 192 states and 264 transitions. Second operand 20 states. [2020-08-21 15:42:54,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:54,359 INFO L93 Difference]: Finished difference Result 440 states and 693 transitions. [2020-08-21 15:42:54,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-08-21 15:42:54,360 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 967 [2020-08-21 15:42:54,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:54,364 INFO L225 Difference]: With dead ends: 440 [2020-08-21 15:42:54,364 INFO L226 Difference]: Without dead ends: 262 [2020-08-21 15:42:54,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=382, Invalid=2480, Unknown=0, NotChecked=0, Total=2862 [2020-08-21 15:42:54,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-08-21 15:42:54,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 224. [2020-08-21 15:42:54,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-08-21 15:42:54,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 318 transitions. [2020-08-21 15:42:54,381 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 318 transitions. Word has length 967 [2020-08-21 15:42:54,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:54,382 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 318 transitions. [2020-08-21 15:42:54,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-08-21 15:42:54,382 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 318 transitions. [2020-08-21 15:42:54,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 927 [2020-08-21 15:42:54,391 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:54,392 INFO L422 BasicCegarLoop]: trace histogram [69, 69, 66, 66, 55, 54, 34, 34, 34, 34, 34, 34, 34, 33, 33, 33, 33, 33, 33, 33, 22, 20, 14, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:42:54,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-08-21 15:42:54,392 INFO L427 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:54,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:54,393 INFO L82 PathProgramCache]: Analyzing trace with hash 2005403070, now seen corresponding path program 15 times [2020-08-21 15:42:54,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:54,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1019423811] [2020-08-21 15:42:54,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:54,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:54,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:54,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:55,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:55,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:55,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:55,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:55,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:55,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:55,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 15:42:55,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:55,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-21 15:42:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:55,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:55,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:55,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:55,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:55,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:55,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2020-08-21 15:42:55,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:55,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:55,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:56,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:56,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:56,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:56,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:56,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:56,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 15:42:56,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:56,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:56,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:56,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-21 15:42:56,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:56,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:56,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:56,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:56,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:56,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:56,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:56,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:56,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:56,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:56,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:56,932 INFO L134 CoverageAnalysis]: Checked inductivity of 25236 backedges. 1773 proven. 3546 refuted. 0 times theorem prover too weak. 19917 trivial. 0 not checked. [2020-08-21 15:42:56,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1019423811] [2020-08-21 15:42:56,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:42:56,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-08-21 15:42:56,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488833047] [2020-08-21 15:42:56,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-08-21 15:42:56,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:42:56,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-08-21 15:42:56,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2020-08-21 15:42:56,934 INFO L87 Difference]: Start difference. First operand 224 states and 318 transitions. Second operand 22 states. [2020-08-21 15:42:58,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:42:58,493 INFO L93 Difference]: Finished difference Result 471 states and 747 transitions. [2020-08-21 15:42:58,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-08-21 15:42:58,494 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 926 [2020-08-21 15:42:58,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:42:58,503 INFO L225 Difference]: With dead ends: 471 [2020-08-21 15:42:58,503 INFO L226 Difference]: Without dead ends: 274 [2020-08-21 15:42:58,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 903 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=436, Invalid=2986, Unknown=0, NotChecked=0, Total=3422 [2020-08-21 15:42:58,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-08-21 15:42:58,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 233. [2020-08-21 15:42:58,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-08-21 15:42:58,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 329 transitions. [2020-08-21 15:42:58,530 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 329 transitions. Word has length 926 [2020-08-21 15:42:58,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:42:58,531 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 329 transitions. [2020-08-21 15:42:58,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-08-21 15:42:58,531 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 329 transitions. [2020-08-21 15:42:58,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 859 [2020-08-21 15:42:58,541 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:42:58,542 INFO L422 BasicCegarLoop]: trace histogram [63, 63, 62, 62, 51, 50, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 20, 19, 13, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:42:58,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-08-21 15:42:58,542 INFO L427 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:42:58,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:42:58,543 INFO L82 PathProgramCache]: Analyzing trace with hash -259331037, now seen corresponding path program 16 times [2020-08-21 15:42:58,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:42:58,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1599276167] [2020-08-21 15:42:58,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:42:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:58,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:42:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:58,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:42:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:59,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:59,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:59,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:59,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:59,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 15:42:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:59,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:59,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-21 15:42:59,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:59,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:59,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:59,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2020-08-21 15:42:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:59,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:59,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:59,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:42:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:59,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:42:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:42:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:42:59,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:42:59,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:42:59,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:42:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 568 [2020-08-21 15:43:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:43:00,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:43:00,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:43:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:43:00,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:43:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:43:00,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:43:00,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:43:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:43:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:43:00,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:43:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:43:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:43:00,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:43:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:43:00,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:43:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 15:43:00,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:43:00,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:43:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:43:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:43:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:43:00,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:43:00,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:43:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:43:00,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 15:43:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:43:00,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:43:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:43:00,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:43:00,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:43:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:43:00,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:43:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:43:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:43:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 15:43:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:43:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 15:43:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 15:43:00,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 15:43:00,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:00,861 INFO L134 CoverageAnalysis]: Checked inductivity of 21596 backedges. 1045 proven. 3041 refuted. 0 times theorem prover too weak. 17510 trivial. 0 not checked. [2020-08-21 15:43:00,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1599276167] [2020-08-21 15:43:00,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:43:00,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-08-21 15:43:00,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878180434] [2020-08-21 15:43:00,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-21 15:43:00,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:43:00,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-21 15:43:00,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-08-21 15:43:00,872 INFO L87 Difference]: Start difference. First operand 233 states and 329 transitions. Second operand 18 states. [2020-08-21 15:43:01,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:43:01,766 INFO L93 Difference]: Finished difference Result 452 states and 652 transitions. [2020-08-21 15:43:01,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-08-21 15:43:01,767 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 858 [2020-08-21 15:43:01,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:43:01,773 INFO L225 Difference]: With dead ends: 452 [2020-08-21 15:43:01,773 INFO L226 Difference]: Without dead ends: 251 [2020-08-21 15:43:01,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=196, Invalid=1210, Unknown=0, NotChecked=0, Total=1406 [2020-08-21 15:43:01,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-08-21 15:43:01,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 221. [2020-08-21 15:43:01,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-08-21 15:43:01,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 308 transitions. [2020-08-21 15:43:01,797 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 308 transitions. Word has length 858 [2020-08-21 15:43:01,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:43:01,798 INFO L479 AbstractCegarLoop]: Abstraction has 221 states and 308 transitions. [2020-08-21 15:43:01,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-21 15:43:01,799 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 308 transitions. [2020-08-21 15:43:01,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1499 [2020-08-21 15:43:01,835 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:43:01,836 INFO L422 BasicCegarLoop]: trace histogram [110, 110, 109, 109, 89, 88, 55, 55, 55, 55, 55, 55, 55, 54, 54, 54, 54, 54, 54, 54, 34, 34, 22, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:43:01,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-08-21 15:43:01,837 INFO L427 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:43:01,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:43:01,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1471629456, now seen corresponding path program 17 times [2020-08-21 15:43:01,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:43:01,838 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770528511] [2020-08-21 15:43:01,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:43:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:03,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:43:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:43:03,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 15:43:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat