/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 --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --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/sum_20x0-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:49:11,170 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:49:11,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:49:11,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:49:11,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:49:11,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:49:11,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:49:11,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:49:11,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:49:11,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:49:11,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:49:11,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:49:11,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:49:11,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:49:11,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:49:11,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:49:11,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:49:11,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:49:11,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:49:11,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:49:11,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:49:11,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:49:11,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:49:11,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:49:11,256 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:49:11,256 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:49:11,256 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:49:11,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:49:11,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:49:11,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:49:11,259 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:49:11,260 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:49:11,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:49:11,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:49:11,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:49:11,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:49:11,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:49:11,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:49:11,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:49:11,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:49:11,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:49:11,267 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 [2020-09-24 23:49:11,293 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:49:11,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:49:11,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:49:11,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:49:11,295 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:49:11,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:49:11,296 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:49:11,296 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:49:11,296 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:49:11,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:49:11,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:49:11,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:49:11,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:49:11,297 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:49:11,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:49:11,298 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:49:11,298 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:49:11,298 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:49:11,298 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:49:11,298 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:49:11,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:49:11,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:49:11,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:49:11,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:49:11,299 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:49:11,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:49:11,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:49:11,300 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:49:11,300 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:49:11,300 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.rcfgbuilder: Size of a code block -> SingleStatement 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 -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; [2020-09-24 23:49:11,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:49:11,802 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:49:11,807 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:49:11,809 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:49:11,810 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:49:11,811 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_20x0-2.c [2020-09-24 23:49:11,901 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/248b0c26f/b9687982dc0e4e6f9ccade621ed66902/FLAG0c98cbe4e [2020-09-24 23:49:12,434 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:49:12,435 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/sum_20x0-2.c [2020-09-24 23:49:12,443 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/248b0c26f/b9687982dc0e4e6f9ccade621ed66902/FLAG0c98cbe4e [2020-09-24 23:49:12,754 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/248b0c26f/b9687982dc0e4e6f9ccade621ed66902 [2020-09-24 23:49:12,769 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:49:12,775 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:49:12,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:49:12,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:49:12,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:49:12,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:49:12" (1/1) ... [2020-09-24 23:49:12,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1987833a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:12, skipping insertion in model container [2020-09-24 23:49:12,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:49:12" (1/1) ... [2020-09-24 23:49:12,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:49:12,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:49:13,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:49:13,041 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:49:13,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:49:13,077 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:49:13,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:13 WrapperNode [2020-09-24 23:49:13,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:49:13,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:49:13,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:49:13,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:49:13,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:13" (1/1) ... [2020-09-24 23:49:13,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:13" (1/1) ... [2020-09-24 23:49:13,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:13" (1/1) ... [2020-09-24 23:49:13,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:13" (1/1) ... [2020-09-24 23:49:13,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:13" (1/1) ... [2020-09-24 23:49:13,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:13" (1/1) ... [2020-09-24 23:49:13,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:13" (1/1) ... [2020-09-24 23:49:13,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:49:13,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:49:13,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:49:13,109 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:49:13,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:13" (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 [2020-09-24 23:49:13,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:49:13,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:49:13,279 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-09-24 23:49:13,279 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:49:13,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:49:13,281 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-09-24 23:49:13,281 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:49:13,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:49:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:49:13,487 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:49:13,488 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 23:49:13,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:49:13 BoogieIcfgContainer [2020-09-24 23:49:13,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:49:13,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:49:13,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:49:13,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:49:13,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:49:12" (1/3) ... [2020-09-24 23:49:13,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a01a83f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:49:13, skipping insertion in model container [2020-09-24 23:49:13,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:13" (2/3) ... [2020-09-24 23:49:13,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a01a83f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:49:13, skipping insertion in model container [2020-09-24 23:49:13,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:49:13" (3/3) ... [2020-09-24 23:49:13,527 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_20x0-2.c [2020-09-24 23:49:13,555 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:49:13,577 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:49:13,606 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:49:13,635 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:49:13,636 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:49:13,636 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:49:13,636 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:49:13,636 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:49:13,636 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:49:13,637 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:49:13,637 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:49:13,656 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-09-24 23:49:13,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-24 23:49:13,663 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:13,664 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:13,664 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:13,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:13,671 INFO L82 PathProgramCache]: Analyzing trace with hash 989240825, now seen corresponding path program 1 times [2020-09-24 23:49:13,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:13,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1993550524] [2020-09-24 23:49:13,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:13,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:13,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:13,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:14,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:14,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:49:14,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:49:14,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-09-24 23:49:14,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:14,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:49:14,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:49:14,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:49:14,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:49:14,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:14,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:14,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:14,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:49:14,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:14,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:49:14,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:14,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:14,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:14,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:14,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:14,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:49:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:14,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:14,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:14,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:49:14,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:14,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 23:49:14,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:14,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:49:14,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:49:14,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:49:14,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:14,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:49:14,341 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1993550524] [2020-09-24 23:49:14,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:49:14,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:49:14,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525053594] [2020-09-24 23:49:14,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:49:14,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:14,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:49:14,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:49:14,376 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 5 states. [2020-09-24 23:49:14,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:14,498 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2020-09-24 23:49:14,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:49:14,501 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-24 23:49:14,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:14,520 INFO L225 Difference]: With dead ends: 39 [2020-09-24 23:49:14,520 INFO L226 Difference]: Without dead ends: 25 [2020-09-24 23:49:14,524 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 [2020-09-24 23:49:14,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-09-24 23:49:14,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-09-24 23:49:14,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-09-24 23:49:14,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2020-09-24 23:49:14,583 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 18 [2020-09-24 23:49:14,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:14,584 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2020-09-24 23:49:14,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:49:14,584 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2020-09-24 23:49:14,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-24 23:49:14,587 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:14,587 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:14,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:49:14,588 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:14,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:14,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1852726759, now seen corresponding path program 1 times [2020-09-24 23:49:14,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:14,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1759962831] [2020-09-24 23:49:14,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:14,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:14,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:15,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:15,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 23:49:15,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:49:15,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 496 [2020-09-24 23:49:15,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:15,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:49:15,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:49:15,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:49:15,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:15,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:15,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:15,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:15,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:15,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:49:15,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:15,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:49:15,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:15,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:15,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:15,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:15,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:15,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:49:15,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:15,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:15,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:15,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:49:15,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:15,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-24 23:49:15,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:15,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:49:15,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:49:15,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 23:49:15,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:15,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:15,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:15,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:15,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:15,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:49:15,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:15,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 23:49:15,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:15,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:49:15,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:15,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:49:15,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:15,332 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 23:49:15,333 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1759962831] [2020-09-24 23:49:15,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:49:15,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 23:49:15,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220110461] [2020-09-24 23:49:15,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:49:15,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:15,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:49:15,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:49:15,338 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 7 states. [2020-09-24 23:49:15,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:15,413 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2020-09-24 23:49:15,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 23:49:15,414 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-09-24 23:49:15,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:15,416 INFO L225 Difference]: With dead ends: 36 [2020-09-24 23:49:15,416 INFO L226 Difference]: Without dead ends: 30 [2020-09-24 23:49:15,418 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:49:15,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-24 23:49:15,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-24 23:49:15,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-24 23:49:15,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-09-24 23:49:15,426 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 27 [2020-09-24 23:49:15,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:15,427 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-09-24 23:49:15,427 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:49:15,427 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-09-24 23:49:15,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-24 23:49:15,429 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:15,429 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:15,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:49:15,429 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:15,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:15,430 INFO L82 PathProgramCache]: Analyzing trace with hash -175020829, now seen corresponding path program 2 times [2020-09-24 23:49:15,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:15,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2000933555] [2020-09-24 23:49:15,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:15,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:15,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:15,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:15,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:15,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-24 23:49:15,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:49:15,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 528 [2020-09-24 23:49:15,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:15,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:49:15,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:49:15,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 23:49:15,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:15,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:15,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:15,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:15,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:49:15,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:15,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:49:15,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:15,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:15,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:15,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:15,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:15,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:49:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:16,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:16,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:16,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:49:16,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:16,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 23:49:16,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:16,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:49:16,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:49:16,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 23:49:16,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:16,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:16,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:16,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:16,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:49:16,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:16,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 23:49:16,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:16,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:49:16,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:16,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 23:49:16,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:16,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:16,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:16,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:16,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:16,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:49:16,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:16,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 23:49:16,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:16,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:49:16,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:16,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:49:16,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:16,290 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-24 23:49:16,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2000933555] [2020-09-24 23:49:16,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:49:16,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 23:49:16,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138691185] [2020-09-24 23:49:16,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:49:16,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:16,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:49:16,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:49:16,296 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 7 states. [2020-09-24 23:49:16,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:16,405 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2020-09-24 23:49:16,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 23:49:16,407 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-09-24 23:49:16,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:16,409 INFO L225 Difference]: With dead ends: 41 [2020-09-24 23:49:16,409 INFO L226 Difference]: Without dead ends: 35 [2020-09-24 23:49:16,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:49:16,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-09-24 23:49:16,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-09-24 23:49:16,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-24 23:49:16,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2020-09-24 23:49:16,428 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 36 [2020-09-24 23:49:16,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:16,429 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2020-09-24 23:49:16,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:49:16,429 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2020-09-24 23:49:16,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-24 23:49:16,434 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:16,435 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:16,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:49:16,435 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:16,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:16,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1021564803, now seen corresponding path program 3 times [2020-09-24 23:49:16,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:16,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [937113185] [2020-09-24 23:49:16,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:16,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:16,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:16,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:17,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:17,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 23:49:17,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:49:17,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 875 [2020-09-24 23:49:17,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:17,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:49:17,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:49:17,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 23:49:17,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:17,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:17,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:17,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:17,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:17,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:49:17,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:17,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:49:17,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:17,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:17,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:17,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:17,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:17,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:49:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:17,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:17,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:17,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 23:49:17,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:17,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-24 23:49:17,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:17,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:49:17,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:49:17,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-24 23:49:17,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:17,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:17,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:17,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:17,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:49:17,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:17,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 23:49:17,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:17,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:49:17,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:17,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 23:49:17,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:17,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:17,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:17,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:17,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:49:17,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:17,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 23:49:17,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:17,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:49:17,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:17,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 23:49:17,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:17,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:17,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:17,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:17,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:17,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:49:17,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:17,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 23:49:17,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:17,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:49:17,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:17,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:49:17,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:17,799 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-24 23:49:17,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [937113185] [2020-09-24 23:49:17,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:49:17,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 23:49:17,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371910114] [2020-09-24 23:49:17,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:49:17,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:17,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:49:17,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:49:17,803 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 9 states. [2020-09-24 23:49:17,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:17,910 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-09-24 23:49:17,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 23:49:17,910 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2020-09-24 23:49:17,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:17,912 INFO L225 Difference]: With dead ends: 46 [2020-09-24 23:49:17,912 INFO L226 Difference]: Without dead ends: 40 [2020-09-24 23:49:17,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-24 23:49:17,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-24 23:49:17,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-09-24 23:49:17,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-24 23:49:17,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2020-09-24 23:49:17,921 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 45 [2020-09-24 23:49:17,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:17,922 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2020-09-24 23:49:17,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:49:17,922 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2020-09-24 23:49:17,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-24 23:49:17,924 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:17,924 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:17,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:49:17,924 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:17,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:17,925 INFO L82 PathProgramCache]: Analyzing trace with hash -263249715, now seen corresponding path program 4 times [2020-09-24 23:49:17,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:17,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [245022108] [2020-09-24 23:49:17,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:17,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:18,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:19,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:19,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 23:49:19,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:49:19,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1166 [2020-09-24 23:49:19,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:19,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:49:19,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:49:19,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-24 23:49:19,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:19,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:19,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:19,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:19,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:49:19,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:19,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:49:19,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:19,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:19,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:19,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:19,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:19,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:49:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:19,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:19,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:19,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:49:19,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:19,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-09-24 23:49:19,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:19,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:49:19,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:49:19,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 23:49:19,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:19,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:19,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:19,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:19,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 23:49:19,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:19,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-09-24 23:49:19,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:19,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:49:19,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:19,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:49:19,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:19,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:19,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:19,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:19,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:19,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:49:19,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:19,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-24 23:49:19,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:19,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:49:19,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:19,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 23:49:19,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:19,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:19,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:19,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:19,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:19,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:49:19,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:19,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 23:49:19,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:19,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:49:19,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:19,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 23:49:19,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:19,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:19,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:19,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:19,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:49:19,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:19,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 23:49:19,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:19,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:49:19,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:19,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:49:19,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:19,851 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-24 23:49:19,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [245022108] [2020-09-24 23:49:19,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:49:19,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 23:49:19,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287650361] [2020-09-24 23:49:19,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:49:19,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:19,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:49:19,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:49:19,854 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 10 states. [2020-09-24 23:49:19,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:19,968 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2020-09-24 23:49:19,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 23:49:19,968 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2020-09-24 23:49:19,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:19,970 INFO L225 Difference]: With dead ends: 51 [2020-09-24 23:49:19,970 INFO L226 Difference]: Without dead ends: 45 [2020-09-24 23:49:19,971 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-24 23:49:19,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-24 23:49:19,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-09-24 23:49:19,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-24 23:49:19,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2020-09-24 23:49:19,980 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 54 [2020-09-24 23:49:19,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:19,980 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2020-09-24 23:49:19,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:49:19,981 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2020-09-24 23:49:19,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-24 23:49:19,982 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:19,982 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:19,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 23:49:19,983 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:19,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:19,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1884999187, now seen corresponding path program 5 times [2020-09-24 23:49:19,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:19,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2059409487] [2020-09-24 23:49:19,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:20,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:20,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:21,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:21,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-24 23:49:21,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:49:21,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1715 [2020-09-24 23:49:21,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:21,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 23:49:21,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:49:21,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 23:49:21,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:21,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:21,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:21,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:21,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:21,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:49:21,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:21,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:49:21,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:21,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:21,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:21,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:21,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:21,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:49:21,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:21,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:22,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:22,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 23:49:22,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:22,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-09-24 23:49:22,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:22,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 23:49:22,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:49:22,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-24 23:49:22,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:22,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:22,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:22,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:22,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:49:22,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:22,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 319 [2020-09-24 23:49:22,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:22,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:49:22,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:22,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 23:49:22,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:22,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:22,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:22,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:22,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 23:49:22,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:22,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-09-24 23:49:22,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:22,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:49:22,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:22,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:49:22,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:22,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:22,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:22,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:22,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:49:22,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:22,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 23:49:22,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:22,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:49:22,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:22,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 23:49:22,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:22,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:22,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:22,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:22,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:22,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:49:22,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:22,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 23:49:22,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:22,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:49:22,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:22,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 23:49:22,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:22,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:22,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:22,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:22,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:49:22,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:22,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 23:49:22,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:22,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:49:22,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:22,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:49:22,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:22,961 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-09-24 23:49:22,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2059409487] [2020-09-24 23:49:22,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:49:22,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 23:49:22,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768352116] [2020-09-24 23:49:22,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:49:22,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:22,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:49:22,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:49:22,965 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 10 states. [2020-09-24 23:49:23,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:23,108 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2020-09-24 23:49:23,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 23:49:23,109 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 63 [2020-09-24 23:49:23,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:23,110 INFO L225 Difference]: With dead ends: 56 [2020-09-24 23:49:23,111 INFO L226 Difference]: Without dead ends: 50 [2020-09-24 23:49:23,112 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2020-09-24 23:49:23,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-24 23:49:23,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-09-24 23:49:23,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-24 23:49:23,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-09-24 23:49:23,126 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 63 [2020-09-24 23:49:23,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:23,127 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-09-24 23:49:23,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:49:23,127 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-09-24 23:49:23,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-24 23:49:23,132 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:23,133 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:23,134 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 23:49:23,134 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:23,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:23,135 INFO L82 PathProgramCache]: Analyzing trace with hash -441437769, now seen corresponding path program 6 times [2020-09-24 23:49:23,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:23,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1710526606] [2020-09-24 23:49:23,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:23,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:23,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:25,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:25,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 23:49:25,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:49:25,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1987 [2020-09-24 23:49:25,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:25,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:49:25,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:49:25,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-24 23:49:25,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:25,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:25,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:25,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:25,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:25,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:49:25,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:25,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:49:25,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:25,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:25,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:25,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:25,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:25,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:49:25,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:25,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:25,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:25,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 23:49:25,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:25,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 362 [2020-09-24 23:49:25,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:25,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:49:25,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:49:25,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:49:25,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:25,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:25,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:25,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:25,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:25,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 23:49:25,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:25,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 316 [2020-09-24 23:49:25,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:25,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:49:25,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:25,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 23:49:25,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:25,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:25,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:26,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:26,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:49:26,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:26,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-09-24 23:49:26,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:26,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:49:26,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:26,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 23:49:26,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:26,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:26,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:26,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:26,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:26,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 23:49:26,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:26,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-09-24 23:49:26,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:26,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:49:26,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:26,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:49:26,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:26,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:26,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:26,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:26,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:26,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:49:26,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:26,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 23:49:26,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:26,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:49:26,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:26,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 23:49:26,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:26,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:26,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:26,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:26,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:49:26,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:26,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 23:49:26,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:26,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:49:26,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:26,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 23:49:26,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:26,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:26,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:26,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:26,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:49:26,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:26,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 23:49:26,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:26,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:49:26,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:26,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:49:26,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:26,709 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 15 proven. 100 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-09-24 23:49:26,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1710526606] [2020-09-24 23:49:26,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:49:26,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 23:49:26,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145578056] [2020-09-24 23:49:26,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 23:49:26,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:26,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 23:49:26,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:49:26,714 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 12 states. [2020-09-24 23:49:26,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:26,881 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-09-24 23:49:26,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 23:49:26,881 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 72 [2020-09-24 23:49:26,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:26,883 INFO L225 Difference]: With dead ends: 61 [2020-09-24 23:49:26,883 INFO L226 Difference]: Without dead ends: 55 [2020-09-24 23:49:26,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=222, Unknown=0, NotChecked=0, Total=342 [2020-09-24 23:49:26,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-24 23:49:26,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-09-24 23:49:26,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-24 23:49:26,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2020-09-24 23:49:26,905 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 72 [2020-09-24 23:49:26,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:26,906 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2020-09-24 23:49:26,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 23:49:26,906 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2020-09-24 23:49:26,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-24 23:49:26,911 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:26,911 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:26,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 23:49:26,911 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:26,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:26,912 INFO L82 PathProgramCache]: Analyzing trace with hash 999943849, now seen corresponding path program 7 times [2020-09-24 23:49:26,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:26,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [222940900] [2020-09-24 23:49:26,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:26,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:26,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:27,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:28,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:28,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-09-24 23:49:28,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:49:28,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1965 [2020-09-24 23:49:28,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:28,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 23:49:28,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:49:28,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-24 23:49:28,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:28,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:28,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:28,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:28,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:28,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:49:28,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:28,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:49:28,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:28,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:28,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:28,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:28,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:28,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:49:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:28,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:29,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:29,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 23:49:29,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:29,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 476 [2020-09-24 23:49:29,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:29,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 23:49:29,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:49:29,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-24 23:49:29,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:29,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:29,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:29,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:29,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:29,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 23:49:29,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:29,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369 [2020-09-24 23:49:29,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:29,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:49:29,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:29,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:49:29,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:29,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:29,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:30,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:30,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 23:49:30,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:30,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-09-24 23:49:30,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:30,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:49:30,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:30,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 23:49:30,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:30,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:30,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:30,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:30,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:30,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:49:30,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:30,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-09-24 23:49:30,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:30,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:49:30,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:30,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 23:49:30,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:30,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:30,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:30,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:30,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 23:49:30,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:30,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-09-24 23:49:30,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:30,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:49:30,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:30,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:49:30,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:30,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:30,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:30,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:30,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:49:30,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:30,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-24 23:49:30,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:30,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:49:30,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:30,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 23:49:30,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:30,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:30,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:30,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:30,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:30,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:49:30,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:30,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 23:49:30,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:30,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:49:30,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:30,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 23:49:30,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:30,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:30,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:30,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:30,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:30,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:49:30,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:30,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:49:30,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:30,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:49:30,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:30,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:49:30,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:30,835 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 15 proven. 124 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-09-24 23:49:30,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [222940900] [2020-09-24 23:49:30,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:49:30,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 23:49:30,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815998525] [2020-09-24 23:49:30,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 23:49:30,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:30,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 23:49:30,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-24 23:49:30,838 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand 13 states. [2020-09-24 23:49:30,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:30,993 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions. [2020-09-24 23:49:30,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 23:49:30,993 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 81 [2020-09-24 23:49:30,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:30,995 INFO L225 Difference]: With dead ends: 66 [2020-09-24 23:49:30,995 INFO L226 Difference]: Without dead ends: 60 [2020-09-24 23:49:30,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-09-24 23:49:30,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-24 23:49:31,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-09-24 23:49:31,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-09-24 23:49:31,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2020-09-24 23:49:31,003 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 81 [2020-09-24 23:49:31,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:31,004 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2020-09-24 23:49:31,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 23:49:31,004 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2020-09-24 23:49:31,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-09-24 23:49:31,005 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:31,005 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:31,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 23:49:31,006 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:31,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:31,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1356134305, now seen corresponding path program 8 times [2020-09-24 23:49:31,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:31,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1964008001] [2020-09-24 23:49:31,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:31,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:31,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:31,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:34,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:34,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-24 23:49:34,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:49:34,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3397 [2020-09-24 23:49:34,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:34,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-24 23:49:34,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:49:34,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-24 23:49:34,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:34,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:34,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:34,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:34,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:49:34,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:34,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:49:34,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:34,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:34,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:34,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:34,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:34,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:49:34,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:34,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:35,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:35,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 23:49:35,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:35,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 603 [2020-09-24 23:49:35,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:35,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-24 23:49:35,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:49:35,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 23:49:35,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:35,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:35,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:35,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:35,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:35,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 23:49:35,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:35,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 491 [2020-09-24 23:49:35,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:35,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 23:49:35,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:35,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 23:49:35,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:35,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:35,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:35,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:36,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:36,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 23:49:36,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:36,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 376 [2020-09-24 23:49:36,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:36,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:49:36,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:36,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:49:36,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:36,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:36,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:36,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:36,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 23:49:36,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:36,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269 [2020-09-24 23:49:36,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:36,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:49:36,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:36,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 23:49:36,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:36,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:36,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:36,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:36,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:49:36,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:36,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-09-24 23:49:36,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:36,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:49:36,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:36,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 23:49:36,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:36,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:36,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:36,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:36,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:36,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 23:49:36,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:36,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-24 23:49:36,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:36,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:49:36,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:36,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:49:36,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:36,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:36,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:36,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:36,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:49:36,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:36,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 23:49:36,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:36,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:49:36,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:36,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 23:49:36,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:36,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:36,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:36,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:36,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:36,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:49:36,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:36,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 23:49:36,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:36,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:49:36,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:36,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 23:49:36,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:37,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:37,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:37,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:37,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:37,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:49:37,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:37,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:49:37,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:37,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:49:37,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:37,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:49:37,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:37,065 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 18 proven. 178 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-09-24 23:49:37,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1964008001] [2020-09-24 23:49:37,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:49:37,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-24 23:49:37,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768655015] [2020-09-24 23:49:37,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 23:49:37,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:37,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 23:49:37,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-09-24 23:49:37,074 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 14 states. [2020-09-24 23:49:37,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:37,246 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2020-09-24 23:49:37,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 23:49:37,247 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 90 [2020-09-24 23:49:37,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:37,249 INFO L225 Difference]: With dead ends: 71 [2020-09-24 23:49:37,252 INFO L226 Difference]: Without dead ends: 65 [2020-09-24 23:49:37,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=327, Unknown=0, NotChecked=0, Total=506 [2020-09-24 23:49:37,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-09-24 23:49:37,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-09-24 23:49:37,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-09-24 23:49:37,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2020-09-24 23:49:37,267 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 90 [2020-09-24 23:49:37,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:37,268 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2020-09-24 23:49:37,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 23:49:37,268 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2020-09-24 23:49:37,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-24 23:49:37,272 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:37,272 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:37,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 23:49:37,273 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:37,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:37,273 INFO L82 PathProgramCache]: Analyzing trace with hash -928437697, now seen corresponding path program 9 times [2020-09-24 23:49:37,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:37,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2016161974] [2020-09-24 23:49:37,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:37,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:37,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:39,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:39,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-09-24 23:49:39,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:49:39,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2037 [2020-09-24 23:49:39,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:39,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 23:49:39,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:49:39,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 23:49:39,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:39,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:39,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:39,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:39,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:39,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:49:39,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:39,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:49:39,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:39,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:39,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:39,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:39,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:39,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:49:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:39,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:39,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:39,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 23:49:39,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:39,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 611 [2020-09-24 23:49:39,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:39,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 23:49:39,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:49:39,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-24 23:49:39,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:40,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:40,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:40,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:40,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:40,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 23:49:40,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:40,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 481 [2020-09-24 23:49:40,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:40,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 23:49:40,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:40,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 23:49:40,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:40,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:40,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:40,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:40,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 23:49:40,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:40,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 383 [2020-09-24 23:49:40,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:40,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 23:49:40,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:40,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 23:49:40,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:40,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:40,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:41,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:41,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:41,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 23:49:41,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:41,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-09-24 23:49:41,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:41,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:49:41,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:41,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:49:41,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:41,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:41,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:41,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:41,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 23:49:41,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:41,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-09-24 23:49:41,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:41,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:49:41,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:41,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 23:49:41,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:41,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:41,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:41,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:41,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:49:41,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:41,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-09-24 23:49:41,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:41,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:49:41,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:41,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 23:49:41,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:41,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:41,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:41,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:41,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:41,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 23:49:41,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:41,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-24 23:49:41,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:41,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:49:41,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:41,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:49:41,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:41,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:41,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:42,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:42,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:49:42,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:42,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-24 23:49:42,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:42,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:49:42,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:42,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 23:49:42,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:42,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:42,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:42,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:42,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:49:42,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:42,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 23:49:42,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:42,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:49:42,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:42,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 23:49:42,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:42,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:42,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:42,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:42,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:42,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:49:42,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:42,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:49:42,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:42,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:49:42,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:42,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:49:42,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:42,203 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 18 proven. 226 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2020-09-24 23:49:42,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2016161974] [2020-09-24 23:49:42,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:49:42,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 23:49:42,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031577473] [2020-09-24 23:49:42,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 23:49:42,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:42,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 23:49:42,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-24 23:49:42,206 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand 15 states. [2020-09-24 23:49:42,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:42,396 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-09-24 23:49:42,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 23:49:42,397 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 99 [2020-09-24 23:49:42,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:42,399 INFO L225 Difference]: With dead ends: 76 [2020-09-24 23:49:42,399 INFO L226 Difference]: Without dead ends: 70 [2020-09-24 23:49:42,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2020-09-24 23:49:42,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-24 23:49:42,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-09-24 23:49:42,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-24 23:49:42,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2020-09-24 23:49:42,406 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 99 [2020-09-24 23:49:42,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:42,407 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2020-09-24 23:49:42,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 23:49:42,407 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2020-09-24 23:49:42,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-09-24 23:49:42,408 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:42,408 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:42,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 23:49:42,408 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:42,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:42,409 INFO L82 PathProgramCache]: Analyzing trace with hash -276966773, now seen corresponding path program 10 times [2020-09-24 23:49:42,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:42,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808868055] [2020-09-24 23:49:42,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:42,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:42,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:45,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:45,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-24 23:49:45,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:49:45,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3145 [2020-09-24 23:49:45,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:45,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 23:49:45,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:49:45,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 23:49:45,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:45,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:45,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:45,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:45,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:49:45,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:45,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:49:45,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:45,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:45,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:45,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:45,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:45,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:49:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:45,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:46,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:46,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 23:49:46,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:46,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 630 [2020-09-24 23:49:46,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:46,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 23:49:46,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:49:46,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 23:49:46,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:46,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:46,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:46,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:46,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:46,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 23:49:46,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:46,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 541 [2020-09-24 23:49:46,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:46,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 23:49:46,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:46,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 23:49:46,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:46,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:46,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:47,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:47,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 23:49:47,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:47,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 440 [2020-09-24 23:49:47,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:47,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 23:49:47,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:47,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 23:49:47,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:47,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:47,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:47,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:47,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:47,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 23:49:47,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:47,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 461 [2020-09-24 23:49:47,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:47,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 23:49:47,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:47,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 23:49:47,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:47,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:47,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:48,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:48,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 23:49:48,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:48,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 397 [2020-09-24 23:49:48,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:48,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:49:48,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:48,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:49:48,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:48,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:48,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:48,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:48,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 23:49:48,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:48,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-09-24 23:49:48,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:48,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:49:48,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:48,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 23:49:48,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:48,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:48,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:48,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:48,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:49:48,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:48,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-09-24 23:49:48,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:48,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:49:48,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:48,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 23:49:48,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:48,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:48,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:48,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:48,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:48,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 23:49:48,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:48,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 23:49:48,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:48,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:49:48,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:48,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:49:48,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:48,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:48,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:48,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:48,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:49:48,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:48,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 23:49:48,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:48,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:49:48,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:48,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 23:49:48,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:49,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:49,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:49,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:49,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:49:49,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:49,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 23:49:49,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:49,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:49:49,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:49,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 23:49:49,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:49,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:49,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:49,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:49,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:49:49,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:49,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:49:49,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:49,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:49:49,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:49,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:49:49,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:49,140 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 24 proven. 301 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2020-09-24 23:49:49,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1808868055] [2020-09-24 23:49:49,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:49:49,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-24 23:49:49,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538064148] [2020-09-24 23:49:49,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-24 23:49:49,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:49,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-24 23:49:49,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-09-24 23:49:49,142 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand 16 states. [2020-09-24 23:49:49,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:49,361 INFO L93 Difference]: Finished difference Result 81 states and 82 transitions. [2020-09-24 23:49:49,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 23:49:49,361 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 108 [2020-09-24 23:49:49,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:49,363 INFO L225 Difference]: With dead ends: 81 [2020-09-24 23:49:49,363 INFO L226 Difference]: Without dead ends: 75 [2020-09-24 23:49:49,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=250, Invalid=452, Unknown=0, NotChecked=0, Total=702 [2020-09-24 23:49:49,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-09-24 23:49:49,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-09-24 23:49:49,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-24 23:49:49,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 76 transitions. [2020-09-24 23:49:49,372 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 76 transitions. Word has length 108 [2020-09-24 23:49:49,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:49,373 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 76 transitions. [2020-09-24 23:49:49,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-24 23:49:49,373 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 76 transitions. [2020-09-24 23:49:49,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-09-24 23:49:49,374 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:49,374 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:49,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 23:49:49,375 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:49,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:49,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1749540651, now seen corresponding path program 11 times [2020-09-24 23:49:49,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:49,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [451041490] [2020-09-24 23:49:49,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:49,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:49,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:53,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:53,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-09-24 23:49:53,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:49:53,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4108 [2020-09-24 23:49:53,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:53,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 23:49:53,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:49:53,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:49:53,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:53,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:53,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:53,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:53,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:53,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:49:53,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:53,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:49:53,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:53,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:53,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:53,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:53,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:53,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:49:53,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:53,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:54,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:54,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 23:49:54,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:54,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 863 [2020-09-24 23:49:54,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:54,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 23:49:54,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:49:54,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-24 23:49:54,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:54,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:54,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:54,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:55,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:55,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 23:49:55,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:55,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 873 [2020-09-24 23:49:55,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:55,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 23:49:55,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:55,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-24 23:49:55,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:55,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:55,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:55,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:55,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 23:49:55,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:55,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 574 [2020-09-24 23:49:55,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:55,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 23:49:55,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:55,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 23:49:55,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:55,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:56,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:56,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:56,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 23:49:56,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:56,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 476 [2020-09-24 23:49:56,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:56,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 23:49:56,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:56,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 23:49:56,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:56,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:56,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:56,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:56,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:56,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 23:49:56,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:56,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-09-24 23:49:56,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:56,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 23:49:56,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:56,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 23:49:56,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:56,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:56,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:56,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:57,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:57,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 23:49:57,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:57,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 336 [2020-09-24 23:49:57,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:57,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:49:57,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:57,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:49:57,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:57,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:57,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:57,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:57,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:57,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 23:49:57,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:57,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-24 23:49:57,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:49:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 23:49:57,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:57,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:57,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:57,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:57,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:49:57,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:57,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-09-24 23:49:57,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:57,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:49:57,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:57,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 23:49:57,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:57,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:57,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:57,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:57,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 23:49:57,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:57,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-24 23:49:57,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:57,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:49:57,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:57,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:49:57,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:57,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:57,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:57,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:57,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:49:57,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:57,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 23:49:57,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:57,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:49:57,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:57,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 23:49:57,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:57,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:57,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:57,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:58,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:58,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:49:58,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:58,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 23:49:58,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:58,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:49:58,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:58,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 23:49:58,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:58,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:58,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:58,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:58,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:49:58,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:58,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:49:58,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:58,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:49:58,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:58,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:49:58,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:58,138 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 21 proven. 378 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2020-09-24 23:49:58,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [451041490] [2020-09-24 23:49:58,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:49:58,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-24 23:49:58,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493688884] [2020-09-24 23:49:58,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 23:49:58,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:58,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 23:49:58,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-09-24 23:49:58,141 INFO L87 Difference]: Start difference. First operand 75 states and 76 transitions. Second operand 17 states. [2020-09-24 23:49:58,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:58,395 INFO L93 Difference]: Finished difference Result 86 states and 87 transitions. [2020-09-24 23:49:58,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 23:49:58,395 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 117 [2020-09-24 23:49:58,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:58,396 INFO L225 Difference]: With dead ends: 86 [2020-09-24 23:49:58,397 INFO L226 Difference]: Without dead ends: 80 [2020-09-24 23:49:58,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2020-09-24 23:49:58,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-24 23:49:58,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-09-24 23:49:58,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-09-24 23:49:58,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 81 transitions. [2020-09-24 23:49:58,405 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 81 transitions. Word has length 117 [2020-09-24 23:49:58,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:58,406 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 81 transitions. [2020-09-24 23:49:58,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 23:49:58,406 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 81 transitions. [2020-09-24 23:49:58,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-09-24 23:49:58,407 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:58,407 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:58,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 23:49:58,408 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:58,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:58,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1141580405, now seen corresponding path program 12 times [2020-09-24 23:49:58,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:58,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [294612108] [2020-09-24 23:49:58,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:58,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:58,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:59,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:02,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:02,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-09-24 23:50:02,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:50:02,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3708 [2020-09-24 23:50:02,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:02,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-24 23:50:02,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:50:02,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-24 23:50:02,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:02,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:50:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:02,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:02,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:02,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:50:02,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:02,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:50:02,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:02,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:02,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:02,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:02,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:02,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:50:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:02,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:03,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:03,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-24 23:50:03,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:03,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 915 [2020-09-24 23:50:03,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:03,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-24 23:50:03,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:50:03,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-09-24 23:50:03,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:03,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:50:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:03,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:03,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:03,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 23:50:03,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:03,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 774 [2020-09-24 23:50:03,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:03,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 23:50:03,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:03,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-24 23:50:03,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:03,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:50:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:03,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:04,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:04,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 23:50:04,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:04,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 673 [2020-09-24 23:50:04,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:04,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 23:50:04,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:04,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-24 23:50:04,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:04,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:50:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:04,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking...