/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.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 SequenceOfStatements --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 --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/recursive/EvenOdd01-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 03:56:32,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 03:56:32,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 03:56:32,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 03:56:32,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 03:56:32,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 03:56:32,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 03:56:32,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 03:56:32,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 03:56:32,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 03:56:32,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 03:56:32,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 03:56:32,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 03:56:32,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 03:56:33,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 03:56:33,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 03:56:33,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 03:56:33,009 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 03:56:33,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 03:56:33,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 03:56:33,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 03:56:33,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 03:56:33,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 03:56:33,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 03:56:33,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 03:56:33,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 03:56:33,054 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 03:56:33,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 03:56:33,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 03:56:33,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 03:56:33,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 03:56:33,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 03:56:33,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 03:56:33,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 03:56:33,062 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 03:56:33,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 03:56:33,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 03:56:33,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 03:56:33,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 03:56:33,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 03:56:33,066 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 03:56:33,073 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 [2020-10-27 03:56:33,119 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 03:56:33,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 03:56:33,123 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 03:56:33,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 03:56:33,123 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 03:56:33,124 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 03:56:33,124 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 03:56:33,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 03:56:33,124 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 03:56:33,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 03:56:33,125 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 03:56:33,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 03:56:33,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 03:56:33,126 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 03:56:33,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 03:56:33,126 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 03:56:33,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 03:56:33,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 03:56:33,127 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 03:56:33,127 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 03:56:33,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 03:56:33,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 03:56:33,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 03:56:33,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 03:56:33,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 03:56:33,128 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 03:56:33,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 03:56:33,129 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 03:56:33,129 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 03:56:33,129 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 03:56:33,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 03:56:33,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 03:56:33,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 03:56:33,602 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 03:56:33,603 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 03:56:33,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/EvenOdd01-1.c [2020-10-27 03:56:33,683 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f531b7704/c576f97905f5482ba70e5a5bb1d69e6c/FLAG8c957afda [2020-10-27 03:56:34,236 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 03:56:34,237 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/EvenOdd01-1.c [2020-10-27 03:56:34,244 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f531b7704/c576f97905f5482ba70e5a5bb1d69e6c/FLAG8c957afda [2020-10-27 03:56:34,613 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f531b7704/c576f97905f5482ba70e5a5bb1d69e6c [2020-10-27 03:56:34,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 03:56:34,627 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 03:56:34,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 03:56:34,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 03:56:34,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 03:56:34,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:56:34" (1/1) ... [2020-10-27 03:56:34,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71137df6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:56:34, skipping insertion in model container [2020-10-27 03:56:34,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:56:34" (1/1) ... [2020-10-27 03:56:34,650 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 03:56:34,666 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 03:56:34,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:56:34,847 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 03:56:34,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:56:34,878 INFO L208 MainTranslator]: Completed translation [2020-10-27 03:56:34,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:56:34 WrapperNode [2020-10-27 03:56:34,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 03:56:34,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 03:56:34,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 03:56:34,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 03:56:34,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:56:34" (1/1) ... [2020-10-27 03:56:34,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:56:34" (1/1) ... [2020-10-27 03:56:34,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:56:34" (1/1) ... [2020-10-27 03:56:34,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:56:34" (1/1) ... [2020-10-27 03:56:34,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:56:34" (1/1) ... [2020-10-27 03:56:34,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:56:34" (1/1) ... [2020-10-27 03:56:34,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:56:34" (1/1) ... [2020-10-27 03:56:34,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 03:56:34,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 03:56:34,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 03:56:34,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 03:56:34,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:56:34" (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 [2020-10-27 03:56:34,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 03:56:34,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 03:56:34,995 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 03:56:34,995 INFO L138 BoogieDeclarations]: Found implementation of procedure isOdd [2020-10-27 03:56:34,996 INFO L138 BoogieDeclarations]: Found implementation of procedure isEven [2020-10-27 03:56:34,996 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 03:56:34,996 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 03:56:34,996 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 03:56:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 03:56:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 03:56:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 03:56:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure isOdd [2020-10-27 03:56:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure isEven [2020-10-27 03:56:34,999 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 03:56:34,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 03:56:34,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 03:56:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 03:56:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 03:56:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 03:56:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 03:56:35,253 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 03:56:35,253 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-27 03:56:35,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:56:35 BoogieIcfgContainer [2020-10-27 03:56:35,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 03:56:35,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 03:56:35,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 03:56:35,261 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 03:56:35,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:56:34" (1/3) ... [2020-10-27 03:56:35,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bfaab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:56:35, skipping insertion in model container [2020-10-27 03:56:35,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:56:34" (2/3) ... [2020-10-27 03:56:35,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bfaab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:56:35, skipping insertion in model container [2020-10-27 03:56:35,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:56:35" (3/3) ... [2020-10-27 03:56:35,264 INFO L111 eAbstractionObserver]: Analyzing ICFG EvenOdd01-1.c [2020-10-27 03:56:35,277 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 03:56:35,282 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 03:56:35,333 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 03:56:35,392 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 03:56:35,393 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 03:56:35,396 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 03:56:35,396 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 03:56:35,396 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 03:56:35,396 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 03:56:35,397 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 03:56:35,397 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 03:56:35,428 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-10-27 03:56:35,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-27 03:56:35,434 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:56:35,436 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:56:35,436 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:56:35,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:56:35,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1267163760, now seen corresponding path program 1 times [2020-10-27 03:56:35,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:56:35,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471821066] [2020-10-27 03:56:35,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:56:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:35,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:36,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:36,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 03:56:36,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:36,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 426 [2020-10-27 03:56:36,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:36,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:56:36,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:56:36,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 03:56:36,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 03:56:36,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:56:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:36,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:36,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:36,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:56:36,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:36,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 03:56:36,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:36,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:56:36,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:36,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:56:36,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:36,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:56:36,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:36,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:36,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:36,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:56:36,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:36,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 03:56:36,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:36,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 03:56:36,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:36,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 03:56:36,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:56:36,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:56:36,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471821066] [2020-10-27 03:56:36,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:56:36,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 03:56:36,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841099286] [2020-10-27 03:56:36,363 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 03:56:36,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:56:36,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 03:56:36,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-27 03:56:36,380 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 7 states. [2020-10-27 03:56:36,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:56:36,830 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2020-10-27 03:56:36,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 03:56:36,832 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-27 03:56:36,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:56:36,842 INFO L225 Difference]: With dead ends: 47 [2020-10-27 03:56:36,842 INFO L226 Difference]: Without dead ends: 29 [2020-10-27 03:56:36,845 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-27 03:56:36,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-27 03:56:36,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-27 03:56:36,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-27 03:56:36,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2020-10-27 03:56:36,892 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 16 [2020-10-27 03:56:36,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:56:36,893 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2020-10-27 03:56:36,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 03:56:36,893 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2020-10-27 03:56:36,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-27 03:56:36,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:56:36,895 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:56:36,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 03:56:36,896 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:56:36,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:56:36,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1353598010, now seen corresponding path program 1 times [2020-10-27 03:56:36,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:56:36,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1660605804] [2020-10-27 03:56:36,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:56:36,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:36,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:37,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:37,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 03:56:37,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:37,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-27 03:56:37,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:37,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:56:37,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:56:37,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 03:56:37,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:37,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:56:37,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:37,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:37,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:37,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:56:37,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:37,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 03:56:37,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:37,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:56:37,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:37,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:56:37,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:37,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:56:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:37,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:37,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:37,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 03:56:37,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:37,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 03:56:37,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:37,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 03:56:37,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:37,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 03:56:37,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:37,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:56:37,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1660605804] [2020-10-27 03:56:37,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:56:37,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 03:56:37,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627109351] [2020-10-27 03:56:37,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 03:56:37,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:56:37,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 03:56:37,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-27 03:56:37,203 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 7 states. [2020-10-27 03:56:37,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:56:37,445 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2020-10-27 03:56:37,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 03:56:37,446 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-10-27 03:56:37,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:56:37,447 INFO L225 Difference]: With dead ends: 36 [2020-10-27 03:56:37,447 INFO L226 Difference]: Without dead ends: 31 [2020-10-27 03:56:37,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-27 03:56:37,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-27 03:56:37,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2020-10-27 03:56:37,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-27 03:56:37,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2020-10-27 03:56:37,458 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 17 [2020-10-27 03:56:37,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:56:37,458 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2020-10-27 03:56:37,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 03:56:37,458 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2020-10-27 03:56:37,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-27 03:56:37,459 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:56:37,460 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:56:37,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 03:56:37,460 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:56:37,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:56:37,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1380467407, now seen corresponding path program 1 times [2020-10-27 03:56:37,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:56:37,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [759825085] [2020-10-27 03:56:37,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:56:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:37,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:37,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:37,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:37,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-27 03:56:37,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:37,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 466 [2020-10-27 03:56:37,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:37,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:56:37,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:56:37,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 03:56:37,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:56:38,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:56:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:38,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:38,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:38,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:56:38,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:38,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 03:56:38,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:38,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:56:38,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:38,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:56:38,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:38,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:56:38,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:38,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:38,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:38,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:38,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:56:38,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:38,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-27 03:56:38,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:38,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 03:56:38,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:38,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 03:56:38,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:38,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:38,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:38,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:38,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:38,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:56:38,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:38,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 03:56:38,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:38,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:56:38,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:38,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 03:56:38,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:56:38,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:56:38,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [759825085] [2020-10-27 03:56:38,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:56:38,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 03:56:38,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53236313] [2020-10-27 03:56:38,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 03:56:38,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:56:38,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 03:56:38,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-27 03:56:38,407 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 10 states. [2020-10-27 03:56:38,773 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-10-27 03:56:39,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:56:39,052 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2020-10-27 03:56:39,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 03:56:39,057 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2020-10-27 03:56:39,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:56:39,058 INFO L225 Difference]: With dead ends: 41 [2020-10-27 03:56:39,058 INFO L226 Difference]: Without dead ends: 36 [2020-10-27 03:56:39,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2020-10-27 03:56:39,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-27 03:56:39,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2020-10-27 03:56:39,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-27 03:56:39,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2020-10-27 03:56:39,068 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 23 [2020-10-27 03:56:39,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:56:39,068 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2020-10-27 03:56:39,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 03:56:39,068 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2020-10-27 03:56:39,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-27 03:56:39,069 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:56:39,069 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:56:39,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 03:56:39,070 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:56:39,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:56:39,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1100607130, now seen corresponding path program 1 times [2020-10-27 03:56:39,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:56:39,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1441837406] [2020-10-27 03:56:39,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:56:39,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:39,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:39,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:39,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 03:56:39,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:39,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-27 03:56:39,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:39,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:56:39,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:56:39,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 03:56:39,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:39,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:56:39,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:39,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:39,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:39,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:56:39,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:39,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:56:39,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:39,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:56:39,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:39,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:56:39,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:39,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:56:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:39,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:39,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:39,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 03:56:39,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:39,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 03:56:39,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:39,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 03:56:39,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:39,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 03:56:39,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:39,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:39,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:39,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:39,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:39,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 03:56:39,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:39,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 03:56:39,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:39,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:56:39,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:39,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 03:56:39,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:39,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:56:39,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1441837406] [2020-10-27 03:56:39,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:56:39,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 03:56:39,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817624203] [2020-10-27 03:56:39,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 03:56:39,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:56:39,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 03:56:39,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-27 03:56:39,448 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 10 states. [2020-10-27 03:56:39,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:56:39,977 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2020-10-27 03:56:39,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 03:56:39,978 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2020-10-27 03:56:39,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:56:39,980 INFO L225 Difference]: With dead ends: 42 [2020-10-27 03:56:39,980 INFO L226 Difference]: Without dead ends: 37 [2020-10-27 03:56:39,981 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2020-10-27 03:56:39,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-27 03:56:39,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 32. [2020-10-27 03:56:39,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-27 03:56:39,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2020-10-27 03:56:39,989 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 24 [2020-10-27 03:56:39,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:56:39,990 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2020-10-27 03:56:39,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 03:56:39,990 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2020-10-27 03:56:39,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-27 03:56:39,991 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:56:39,991 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:56:39,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 03:56:39,992 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:56:39,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:56:39,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1462998947, now seen corresponding path program 1 times [2020-10-27 03:56:39,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:56:39,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2111930804] [2020-10-27 03:56:39,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:56:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:40,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:40,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:40,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:40,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-27 03:56:40,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:40,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 383 [2020-10-27 03:56:40,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:40,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:56:40,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:56:40,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 03:56:40,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:40,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:56:40,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:40,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:40,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:40,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:56:40,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:40,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:56:40,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:40,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:56:40,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:40,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:56:40,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:40,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:56:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:40,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:40,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:40,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:40,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 03:56:40,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:40,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-27 03:56:40,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:40,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 03:56:40,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:40,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 03:56:40,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:40,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:40,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:40,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:40,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:40,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:40,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:56:40,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:40,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-27 03:56:40,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:40,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:56:40,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:40,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 03:56:40,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:40,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:40,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:40,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:40,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:40,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:56:40,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:40,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 03:56:40,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:40,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:56:40,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:40,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 03:56:40,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:40,871 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-27 03:56:40,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2111930804] [2020-10-27 03:56:40,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:56:40,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 03:56:40,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038618949] [2020-10-27 03:56:40,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 03:56:40,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:56:40,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 03:56:40,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2020-10-27 03:56:40,874 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 12 states. [2020-10-27 03:56:41,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:56:41,598 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2020-10-27 03:56:41,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 03:56:41,599 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 30 [2020-10-27 03:56:41,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:56:41,600 INFO L225 Difference]: With dead ends: 50 [2020-10-27 03:56:41,600 INFO L226 Difference]: Without dead ends: 45 [2020-10-27 03:56:41,601 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2020-10-27 03:56:41,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-27 03:56:41,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 35. [2020-10-27 03:56:41,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-27 03:56:41,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2020-10-27 03:56:41,610 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 30 [2020-10-27 03:56:41,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:56:41,610 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2020-10-27 03:56:41,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 03:56:41,612 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2020-10-27 03:56:41,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-27 03:56:41,613 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:56:41,614 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:56:41,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 03:56:41,614 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:56:41,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:56:41,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1815013415, now seen corresponding path program 1 times [2020-10-27 03:56:41,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:56:41,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [533066613] [2020-10-27 03:56:41,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:56:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:41,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:41,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:41,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 03:56:41,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:41,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-10-27 03:56:41,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:41,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:56:41,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:56:41,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-27 03:56:41,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:42,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:56:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:42,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:42,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:42,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:56:42,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:42,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:56:42,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:42,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:56:42,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:42,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:56:42,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:42,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:56:42,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:42,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:42,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:42,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 03:56:42,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:42,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-27 03:56:42,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:42,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 03:56:42,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:42,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 03:56:42,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:42,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:42,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:42,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:42,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 03:56:42,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:42,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-27 03:56:42,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:42,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:56:42,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:42,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 03:56:42,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:42,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:42,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:42,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:42,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:42,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 03:56:42,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:42,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 03:56:42,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:42,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:56:42,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:42,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 03:56:42,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 03:56:42,308 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 03:56:42,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [533066613] [2020-10-27 03:56:42,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:56:42,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 03:56:42,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858722537] [2020-10-27 03:56:42,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 03:56:42,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:56:42,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 03:56:42,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2020-10-27 03:56:42,312 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 12 states. [2020-10-27 03:56:43,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:56:43,075 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2020-10-27 03:56:43,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 03:56:43,076 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 31 [2020-10-27 03:56:43,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:56:43,078 INFO L225 Difference]: With dead ends: 48 [2020-10-27 03:56:43,078 INFO L226 Difference]: Without dead ends: 43 [2020-10-27 03:56:43,079 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2020-10-27 03:56:43,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-27 03:56:43,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 35. [2020-10-27 03:56:43,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-27 03:56:43,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2020-10-27 03:56:43,087 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 31 [2020-10-27 03:56:43,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:56:43,087 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2020-10-27 03:56:43,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 03:56:43,087 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2020-10-27 03:56:43,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-27 03:56:43,088 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:56:43,089 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:56:43,089 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 03:56:43,089 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:56:43,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:56:43,089 INFO L82 PathProgramCache]: Analyzing trace with hash -276397038, now seen corresponding path program 1 times [2020-10-27 03:56:43,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:56:43,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1642591564] [2020-10-27 03:56:43,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:56:43,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:43,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:43,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:43,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:43,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-27 03:56:43,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:43,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-10-27 03:56:43,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:43,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:56:43,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:56:43,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 03:56:43,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:43,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:56:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:43,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:43,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:43,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:56:43,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:43,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:56:43,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:43,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:56:43,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:43,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:56:43,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:43,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:56:43,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:43,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:43,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:43,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:43,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 03:56:43,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:43,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-27 03:56:43,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:43,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 03:56:43,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:43,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 03:56:43,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:43,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:43,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:43,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:43,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:43,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 03:56:43,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:43,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-27 03:56:43,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:43,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:56:43,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:43,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 03:56:43,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:43,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:43,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:43,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:43,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:43,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:56:43,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:43,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-27 03:56:43,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:43,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:56:43,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:43,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 03:56:43,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:44,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:44,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:44,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:44,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:44,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:56:44,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:44,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 03:56:44,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:44,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:56:44,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:44,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 03:56:44,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:44,064 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-27 03:56:44,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1642591564] [2020-10-27 03:56:44,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:56:44,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-27 03:56:44,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893215546] [2020-10-27 03:56:44,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 03:56:44,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:56:44,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 03:56:44,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-10-27 03:56:44,067 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 14 states. [2020-10-27 03:56:45,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:56:45,005 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2020-10-27 03:56:45,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 03:56:45,005 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 37 [2020-10-27 03:56:45,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:56:45,007 INFO L225 Difference]: With dead ends: 59 [2020-10-27 03:56:45,007 INFO L226 Difference]: Without dead ends: 54 [2020-10-27 03:56:45,008 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=83, Invalid=517, Unknown=0, NotChecked=0, Total=600 [2020-10-27 03:56:45,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-27 03:56:45,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 38. [2020-10-27 03:56:45,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-27 03:56:45,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2020-10-27 03:56:45,017 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 37 [2020-10-27 03:56:45,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:56:45,017 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2020-10-27 03:56:45,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 03:56:45,017 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2020-10-27 03:56:45,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-27 03:56:45,019 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:56:45,019 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:56:45,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 03:56:45,019 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:56:45,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:56:45,020 INFO L82 PathProgramCache]: Analyzing trace with hash 509875021, now seen corresponding path program 1 times [2020-10-27 03:56:45,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:56:45,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2141356814] [2020-10-27 03:56:45,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:56:45,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:45,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:45,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:45,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 03:56:45,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:45,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-10-27 03:56:45,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:45,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:56:45,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:56:45,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-27 03:56:45,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:45,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:56:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:45,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:45,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:45,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:56:45,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:45,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 03:56:45,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:45,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:56:45,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:45,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:56:45,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:45,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:56:45,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:45,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:45,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:45,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 03:56:45,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:45,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-27 03:56:45,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:45,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 03:56:45,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:45,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 03:56:45,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:45,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:45,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:45,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:45,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 03:56:45,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:45,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-27 03:56:45,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:45,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:56:45,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:45,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 03:56:45,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:45,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:45,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:45,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:45,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 03:56:45,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:45,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 03:56:45,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:45,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:56:45,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:45,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 03:56:45,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:45,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:45,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:45,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:45,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:45,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 03:56:45,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:45,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 03:56:45,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:45,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:56:45,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:45,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 03:56:45,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:45,913 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-27 03:56:45,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2141356814] [2020-10-27 03:56:45,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:56:45,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-27 03:56:45,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772060848] [2020-10-27 03:56:45,914 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 03:56:45,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:56:45,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 03:56:45,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-10-27 03:56:45,916 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 14 states. [2020-10-27 03:56:46,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:56:46,809 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2020-10-27 03:56:46,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 03:56:46,809 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 38 [2020-10-27 03:56:46,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:56:46,810 INFO L225 Difference]: With dead ends: 54 [2020-10-27 03:56:46,810 INFO L226 Difference]: Without dead ends: 49 [2020-10-27 03:56:46,814 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=83, Invalid=517, Unknown=0, NotChecked=0, Total=600 [2020-10-27 03:56:46,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-27 03:56:46,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 38. [2020-10-27 03:56:46,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-27 03:56:46,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2020-10-27 03:56:46,827 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 38 [2020-10-27 03:56:46,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:56:46,828 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2020-10-27 03:56:46,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 03:56:46,828 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2020-10-27 03:56:46,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-27 03:56:46,834 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:56:46,835 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:56:46,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 03:56:46,835 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:56:46,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:56:46,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1749312214, now seen corresponding path program 2 times [2020-10-27 03:56:46,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:56:46,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1594029613] [2020-10-27 03:56:46,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:56:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:46,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:46,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:47,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:47,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-27 03:56:47,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:47,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 358 [2020-10-27 03:56:47,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:47,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 03:56:47,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:56:47,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-27 03:56:47,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:47,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:56:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:47,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:47,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:47,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:56:47,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:47,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:56:47,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:47,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:56:47,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:47,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:56:47,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:47,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:56:47,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:47,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:47,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:47,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:47,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 03:56:47,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:47,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-27 03:56:47,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:47,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 03:56:47,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:47,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 03:56:47,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:47,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:47,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:47,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:47,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:47,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:47,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 03:56:47,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:47,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-27 03:56:47,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:47,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:56:47,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:47,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 03:56:47,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:47,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:47,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:47,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:47,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:47,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:47,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 03:56:47,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:47,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-27 03:56:47,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:47,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:56:47,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:47,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 03:56:47,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:47,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:47,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:47,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:47,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:47,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:47,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:56:47,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:47,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 03:56:47,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:47,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:56:47,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:47,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 03:56:47,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:48,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:48,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:48,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:48,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:48,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:56:48,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:48,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 03:56:48,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:48,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:56:48,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:48,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 03:56:48,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:48,122 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-27 03:56:48,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1594029613] [2020-10-27 03:56:48,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:56:48,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-27 03:56:48,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457380372] [2020-10-27 03:56:48,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 03:56:48,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:56:48,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 03:56:48,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2020-10-27 03:56:48,131 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 16 states. [2020-10-27 03:56:49,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:56:49,391 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2020-10-27 03:56:49,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 03:56:49,392 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 44 [2020-10-27 03:56:49,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:56:49,394 INFO L225 Difference]: With dead ends: 68 [2020-10-27 03:56:49,394 INFO L226 Difference]: Without dead ends: 63 [2020-10-27 03:56:49,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=99, Invalid=713, Unknown=0, NotChecked=0, Total=812 [2020-10-27 03:56:49,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-27 03:56:49,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 41. [2020-10-27 03:56:49,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-27 03:56:49,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2020-10-27 03:56:49,403 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 44 [2020-10-27 03:56:49,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:56:49,404 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2020-10-27 03:56:49,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-27 03:56:49,404 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2020-10-27 03:56:49,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-27 03:56:49,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:56:49,405 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:56:49,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 03:56:49,405 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:56:49,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:56:49,406 INFO L82 PathProgramCache]: Analyzing trace with hash -221902968, now seen corresponding path program 2 times [2020-10-27 03:56:49,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:56:49,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [588514685] [2020-10-27 03:56:49,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:56:49,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:49,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:49,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:49,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 03:56:49,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:49,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-10-27 03:56:49,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:49,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 03:56:49,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:56:49,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 03:56:49,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:49,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:56:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:49,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:49,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:49,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:56:49,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:49,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:56:49,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:49,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:56:49,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:49,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:56:49,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:49,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:56:49,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:49,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:50,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:50,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 03:56:50,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:50,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-27 03:56:50,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:50,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 03:56:50,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:50,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-27 03:56:50,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:50,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:50,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:50,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:50,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 03:56:50,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:50,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-27 03:56:50,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:50,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:56:50,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:50,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 03:56:50,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:50,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:50,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:50,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:50,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 03:56:50,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:50,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-27 03:56:50,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:50,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:56:50,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:50,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 03:56:50,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:50,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:50,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:50,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:50,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 03:56:50,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:50,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 03:56:50,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:50,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:56:50,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:50,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 03:56:50,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:50,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:50,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:50,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:50,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 03:56:50,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:50,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 03:56:50,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:50,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:56:50,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 03:56:50,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:50,535 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-27 03:56:50,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [588514685] [2020-10-27 03:56:50,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:56:50,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-27 03:56:50,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872749264] [2020-10-27 03:56:50,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-27 03:56:50,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:56:50,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-27 03:56:50,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2020-10-27 03:56:50,538 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 17 states. [2020-10-27 03:56:51,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:56:51,609 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2020-10-27 03:56:51,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 03:56:51,610 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 45 [2020-10-27 03:56:51,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:56:51,612 INFO L225 Difference]: With dead ends: 60 [2020-10-27 03:56:51,612 INFO L226 Difference]: Without dead ends: 55 [2020-10-27 03:56:51,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=109, Invalid=761, Unknown=0, NotChecked=0, Total=870 [2020-10-27 03:56:51,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-27 03:56:51,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 41. [2020-10-27 03:56:51,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-27 03:56:51,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2020-10-27 03:56:51,620 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 45 [2020-10-27 03:56:51,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:56:51,620 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2020-10-27 03:56:51,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-27 03:56:51,621 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2020-10-27 03:56:51,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-27 03:56:51,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:56:51,622 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:56:51,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 03:56:51,622 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:56:51,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:56:51,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1453493747, now seen corresponding path program 2 times [2020-10-27 03:56:51,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:56:51,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1139347573] [2020-10-27 03:56:51,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:56:51,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:51,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:51,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:52,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:52,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-27 03:56:52,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:52,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 433 [2020-10-27 03:56:52,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:52,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 03:56:52,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:56:52,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 03:56:52,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:52,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:56:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:52,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:52,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:52,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:56:52,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:52,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:56:52,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:52,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:56:52,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:52,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:56:52,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:52,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:56:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:52,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:52,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:52,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:52,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 03:56:52,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:52,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-27 03:56:52,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:52,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 03:56:52,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:52,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-27 03:56:52,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:52,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:52,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:52,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:52,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:52,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:52,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 03:56:52,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:52,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-27 03:56:52,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:52,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 03:56:52,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:52,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 03:56:52,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:52,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:52,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:52,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:52,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:52,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 03:56:52,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:52,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-27 03:56:52,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:52,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:56:52,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:52,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 03:56:52,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:52,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:52,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:52,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:52,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:52,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:52,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 03:56:52,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:52,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-27 03:56:52,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:52,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:56:52,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:52,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 03:56:52,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:52,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:52,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:52,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:53,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:53,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:56:53,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:53,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 03:56:53,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:53,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:56:53,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:53,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 03:56:53,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:53,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:53,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:53,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:53,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:53,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:56:53,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:53,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 03:56:53,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:53,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:56:53,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:53,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 03:56:53,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:53,179 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-27 03:56:53,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1139347573] [2020-10-27 03:56:53,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:56:53,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-27 03:56:53,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869720459] [2020-10-27 03:56:53,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 03:56:53,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:56:53,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 03:56:53,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2020-10-27 03:56:53,182 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 19 states. [2020-10-27 03:56:54,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:56:54,583 INFO L93 Difference]: Finished difference Result 77 states and 81 transitions. [2020-10-27 03:56:54,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 03:56:54,583 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 51 [2020-10-27 03:56:54,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:56:54,585 INFO L225 Difference]: With dead ends: 77 [2020-10-27 03:56:54,585 INFO L226 Difference]: Without dead ends: 72 [2020-10-27 03:56:54,586 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=127, Invalid=995, Unknown=0, NotChecked=0, Total=1122 [2020-10-27 03:56:54,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-27 03:56:54,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 44. [2020-10-27 03:56:54,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-27 03:56:54,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2020-10-27 03:56:54,597 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 51 [2020-10-27 03:56:54,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:56:54,598 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2020-10-27 03:56:54,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 03:56:54,598 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2020-10-27 03:56:54,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-27 03:56:54,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:56:54,599 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:56:54,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 03:56:54,600 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:56:54,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:56:54,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1700064768, now seen corresponding path program 2 times [2020-10-27 03:56:54,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:56:54,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1878381451] [2020-10-27 03:56:54,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:56:54,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:54,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:55,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:55,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-27 03:56:55,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:55,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-10-27 03:56:55,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:55,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 03:56:55,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:56:55,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-27 03:56:55,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:55,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:56:55,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:55,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:55,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:55,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:56:55,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:55,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:56:55,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:55,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:56:55,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:55,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:56:55,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:55,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:56:55,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:55,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:55,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:55,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-27 03:56:55,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:55,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-27 03:56:55,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:55,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 03:56:55,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:55,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 03:56:55,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:55,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:55,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:55,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:55,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 03:56:55,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:55,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-27 03:56:55,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:55,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 03:56:55,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:55,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-27 03:56:55,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:55,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:55,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:55,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:55,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 03:56:55,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:55,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-27 03:56:55,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:55,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:56:55,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:55,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 03:56:55,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:55,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:55,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:55,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:55,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:55,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 03:56:55,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:55,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-27 03:56:55,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:55,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:56:55,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:55,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 03:56:55,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:55,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:55,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:55,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:55,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 03:56:55,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:55,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 03:56:55,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:55,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:56:55,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:55,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 03:56:55,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:55,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:55,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:55,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:55,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:55,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 03:56:55,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:55,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 03:56:55,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:55,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:56:55,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:55,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 03:56:55,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:56,044 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-27 03:56:56,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1878381451] [2020-10-27 03:56:56,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:56:56,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-27 03:56:56,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143214527] [2020-10-27 03:56:56,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 03:56:56,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:56:56,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 03:56:56,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2020-10-27 03:56:56,046 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 18 states. [2020-10-27 03:56:57,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:56:57,146 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2020-10-27 03:56:57,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 03:56:57,147 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 52 [2020-10-27 03:56:57,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:56:57,148 INFO L225 Difference]: With dead ends: 68 [2020-10-27 03:56:57,148 INFO L226 Difference]: Without dead ends: 63 [2020-10-27 03:56:57,149 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=127, Invalid=929, Unknown=0, NotChecked=0, Total=1056 [2020-10-27 03:56:57,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-27 03:56:57,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 44. [2020-10-27 03:56:57,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-27 03:56:57,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2020-10-27 03:56:57,159 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 52 [2020-10-27 03:56:57,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:56:57,159 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2020-10-27 03:56:57,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-27 03:56:57,159 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2020-10-27 03:56:57,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-27 03:56:57,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:56:57,160 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:56:57,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 03:56:57,161 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:56:57,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:56:57,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1237462007, now seen corresponding path program 3 times [2020-10-27 03:56:57,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:56:57,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1880673382] [2020-10-27 03:56:57,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:56:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:57,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:57,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:57,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:57,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 03:56:57,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:57,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 500 [2020-10-27 03:56:57,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:57,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 03:56:57,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:56:57,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 03:56:57,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:57,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:56:57,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:57,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:57,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:57,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:56:57,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:57,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:56:57,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:57,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:56:57,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:57,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:56:57,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:57,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:56:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:57,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:57,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:58,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:58,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 03:56:58,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:58,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-27 03:56:58,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:58,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 03:56:58,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:58,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 03:56:58,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:58,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:58,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:58,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:58,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:58,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:58,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 03:56:58,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:58,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-27 03:56:58,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:58,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 03:56:58,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:58,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-27 03:56:58,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:58,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:58,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:58,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:58,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:58,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:58,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 03:56:58,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:58,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-27 03:56:58,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:58,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 03:56:58,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:58,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 03:56:58,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:58,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:58,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:58,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:58,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:58,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:58,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 03:56:58,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:58,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-27 03:56:58,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:58,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:56:58,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:58,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 03:56:58,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:56:58,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:58,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:58,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:58,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:58,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:58,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 03:56:58,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:58,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-27 03:56:58,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:58,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:56:58,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:58,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 03:56:58,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:58,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:58,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:58,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:58,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:59,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:59,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:56:59,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:56:59,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 03:56:59,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:59,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:56:59,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:59,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 03:56:59,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:59,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:56:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:56:59,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:56:59,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:56:59,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:56:59,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:56:59,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 03:56:59,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:56:59,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:56:59,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:56:59,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 03:56:59,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:56:59,149 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-27 03:56:59,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1880673382] [2020-10-27 03:56:59,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:56:59,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-27 03:56:59,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468212441] [2020-10-27 03:56:59,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-27 03:56:59,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:56:59,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-27 03:56:59,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2020-10-27 03:56:59,152 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 20 states. [2020-10-27 03:57:00,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:57:00,702 INFO L93 Difference]: Finished difference Result 86 states and 90 transitions. [2020-10-27 03:57:00,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-27 03:57:00,704 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 58 [2020-10-27 03:57:00,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:57:00,705 INFO L225 Difference]: With dead ends: 86 [2020-10-27 03:57:00,705 INFO L226 Difference]: Without dead ends: 81 [2020-10-27 03:57:00,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=131, Invalid=1201, Unknown=0, NotChecked=0, Total=1332 [2020-10-27 03:57:00,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-10-27 03:57:00,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 47. [2020-10-27 03:57:00,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-27 03:57:00,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2020-10-27 03:57:00,714 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 58 [2020-10-27 03:57:00,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:57:00,714 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2020-10-27 03:57:00,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-27 03:57:00,714 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2020-10-27 03:57:00,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-27 03:57:00,715 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:57:00,716 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:57:00,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 03:57:00,716 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:57:00,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:57:00,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1817856489, now seen corresponding path program 3 times [2020-10-27 03:57:00,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:57:00,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [825138464] [2020-10-27 03:57:00,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:57:00,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:00,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:01,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:01,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 03:57:01,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:01,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 446 [2020-10-27 03:57:01,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:01,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 03:57:01,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:57:01,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 03:57:01,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:01,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:57:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:01,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:01,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:01,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:57:01,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:01,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:57:01,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:01,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:57:01,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:01,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:57:01,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:01,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:57:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:01,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:01,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:01,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-27 03:57:01,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:01,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-10-27 03:57:01,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:01,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 03:57:01,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:01,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 03:57:01,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:01,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:01,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:01,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:01,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:01,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-27 03:57:01,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:01,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-27 03:57:01,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:01,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 03:57:01,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:01,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 03:57:01,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:01,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:01,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:02,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:02,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 03:57:02,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:02,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-27 03:57:02,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:02,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 03:57:02,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:02,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-27 03:57:02,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:02,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:02,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:02,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:02,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 03:57:02,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:02,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-27 03:57:02,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:02,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:57:02,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:02,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 03:57:02,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:02,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:02,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:02,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:02,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:02,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 03:57:02,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:02,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-27 03:57:02,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:02,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:57:02,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:02,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 03:57:02,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:02,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:02,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:02,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:02,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 03:57:02,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:02,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 03:57:02,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:02,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:57:02,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:02,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 03:57:02,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:02,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:02,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:02,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:02,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 03:57:02,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:02,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 03:57:02,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:02,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:57:02,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:02,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 03:57:02,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:02,586 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-27 03:57:02,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [825138464] [2020-10-27 03:57:02,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:57:02,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-27 03:57:02,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517638862] [2020-10-27 03:57:02,587 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-27 03:57:02,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:57:02,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-27 03:57:02,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2020-10-27 03:57:02,588 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 20 states. [2020-10-27 03:57:04,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:57:04,280 INFO L93 Difference]: Finished difference Result 72 states and 76 transitions. [2020-10-27 03:57:04,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-27 03:57:04,281 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 59 [2020-10-27 03:57:04,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:57:04,282 INFO L225 Difference]: With dead ends: 72 [2020-10-27 03:57:04,282 INFO L226 Difference]: Without dead ends: 67 [2020-10-27 03:57:04,284 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=131, Invalid=1201, Unknown=0, NotChecked=0, Total=1332 [2020-10-27 03:57:04,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-27 03:57:04,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 47. [2020-10-27 03:57:04,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-27 03:57:04,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2020-10-27 03:57:04,292 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 59 [2020-10-27 03:57:04,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:57:04,292 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2020-10-27 03:57:04,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-27 03:57:04,292 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2020-10-27 03:57:04,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-27 03:57:04,293 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:57:04,293 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:57:04,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 03:57:04,294 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:57:04,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:57:04,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1455360724, now seen corresponding path program 3 times [2020-10-27 03:57:04,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:57:04,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [608379641] [2020-10-27 03:57:04,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:57:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:04,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:04,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:04,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:04,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 03:57:04,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:04,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 570 [2020-10-27 03:57:04,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:04,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 03:57:04,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:57:04,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 03:57:04,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:05,031 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 28 [2020-10-27 03:57:05,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:57:05,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:05,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:05,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:05,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:57:05,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:05,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:57:05,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:05,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:57:05,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:05,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:57:05,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:05,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:57:05,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:05,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:05,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:05,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:05,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-27 03:57:05,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:05,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-10-27 03:57:05,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:05,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 03:57:05,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:05,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 03:57:05,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:05,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:05,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:05,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:05,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:05,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 03:57:05,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:05,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-10-27 03:57:05,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:05,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 03:57:05,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:05,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 03:57:05,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:05,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:05,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:05,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:05,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:05,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:05,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 03:57:05,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:05,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-27 03:57:05,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:05,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 03:57:05,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:05,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-27 03:57:05,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:06,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:06,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:06,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:06,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:06,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:06,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 03:57:06,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:06,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-27 03:57:06,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:06,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 03:57:06,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:06,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 03:57:06,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:06,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:06,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:06,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:06,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:06,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:06,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 03:57:06,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:06,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-27 03:57:06,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:06,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:57:06,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:06,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 03:57:06,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:57:06,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:06,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:06,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:06,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:06,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 03:57:06,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:06,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-27 03:57:06,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:06,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:57:06,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:06,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 03:57:06,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:06,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:06,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:06,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:06,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:06,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:57:06,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:06,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 03:57:06,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:06,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:57:06,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:06,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 03:57:06,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:06,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:06,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:06,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:06,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:57:06,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:06,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 03:57:06,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:06,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:57:06,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:06,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 03:57:06,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:06,765 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-10-27 03:57:06,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [608379641] [2020-10-27 03:57:06,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:57:06,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-27 03:57:06,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996043261] [2020-10-27 03:57:06,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-27 03:57:06,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:57:06,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-27 03:57:06,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2020-10-27 03:57:06,768 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 22 states. [2020-10-27 03:57:08,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:57:08,713 INFO L93 Difference]: Finished difference Result 95 states and 99 transitions. [2020-10-27 03:57:08,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 03:57:08,714 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 65 [2020-10-27 03:57:08,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:57:08,715 INFO L225 Difference]: With dead ends: 95 [2020-10-27 03:57:08,715 INFO L226 Difference]: Without dead ends: 90 [2020-10-27 03:57:08,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 14 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=147, Invalid=1493, Unknown=0, NotChecked=0, Total=1640 [2020-10-27 03:57:08,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-10-27 03:57:08,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 50. [2020-10-27 03:57:08,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-27 03:57:08,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2020-10-27 03:57:08,723 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 65 [2020-10-27 03:57:08,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:57:08,723 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2020-10-27 03:57:08,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-27 03:57:08,724 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2020-10-27 03:57:08,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-27 03:57:08,724 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:57:08,725 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:57:08,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-27 03:57:08,725 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:57:08,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:57:08,725 INFO L82 PathProgramCache]: Analyzing trace with hash -297234765, now seen corresponding path program 3 times [2020-10-27 03:57:08,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:57:08,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1222113663] [2020-10-27 03:57:08,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:57:08,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:08,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:09,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:09,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-27 03:57:09,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:09,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 526 [2020-10-27 03:57:09,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:09,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 03:57:09,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:57:09,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 03:57:09,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:09,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:57:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:09,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:09,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:09,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:57:09,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:09,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:57:09,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:09,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:57:09,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:09,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:57:09,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:09,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:57:09,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:09,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:09,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:09,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 03:57:09,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:09,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-27 03:57:09,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:09,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 03:57:09,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:09,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 03:57:09,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:09,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:09,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:09,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:09,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-27 03:57:09,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:09,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-27 03:57:09,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:09,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 03:57:09,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:09,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 03:57:09,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:09,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:09,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:10,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:10,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-27 03:57:10,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:10,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-27 03:57:10,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:10,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 03:57:10,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:10,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 03:57:10,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:10,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:10,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:10,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:10,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:10,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 03:57:10,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:10,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-27 03:57:10,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:10,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 03:57:10,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:10,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-27 03:57:10,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:10,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:10,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:10,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:10,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 03:57:10,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:10,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-27 03:57:10,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:10,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:57:10,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:10,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 03:57:10,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:10,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:10,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:10,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:10,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 03:57:10,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:10,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 03:57:10,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:10,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:57:10,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:10,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 03:57:10,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:10,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:10,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:10,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:10,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:10,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 03:57:10,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:10,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 03:57:10,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:10,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:57:10,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:10,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 03:57:10,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:10,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:10,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:10,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:10,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 03:57:10,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:10,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 03:57:10,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:10,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:57:10,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:10,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 03:57:10,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:10,826 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-27 03:57:10,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1222113663] [2020-10-27 03:57:10,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:57:10,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-27 03:57:10,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950227561] [2020-10-27 03:57:10,829 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-27 03:57:10,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:57:10,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-27 03:57:10,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=460, Unknown=0, NotChecked=0, Total=506 [2020-10-27 03:57:10,830 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 23 states. [2020-10-27 03:57:12,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:57:12,689 INFO L93 Difference]: Finished difference Result 78 states and 82 transitions. [2020-10-27 03:57:12,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 03:57:12,690 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 66 [2020-10-27 03:57:12,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:57:12,691 INFO L225 Difference]: With dead ends: 78 [2020-10-27 03:57:12,691 INFO L226 Difference]: Without dead ends: 73 [2020-10-27 03:57:12,693 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=161, Invalid=1561, Unknown=0, NotChecked=0, Total=1722 [2020-10-27 03:57:12,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-27 03:57:12,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 50. [2020-10-27 03:57:12,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-27 03:57:12,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2020-10-27 03:57:12,699 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 66 [2020-10-27 03:57:12,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:57:12,699 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2020-10-27 03:57:12,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-27 03:57:12,699 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2020-10-27 03:57:12,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-27 03:57:12,700 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:57:12,700 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:57:12,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-27 03:57:12,701 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:57:12,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:57:12,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1833788, now seen corresponding path program 4 times [2020-10-27 03:57:12,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:57:12,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1368427373] [2020-10-27 03:57:12,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:57:12,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:12,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:12,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:13,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:13,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 03:57:13,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:13,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 614 [2020-10-27 03:57:13,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:13,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 03:57:13,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:57:13,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-27 03:57:13,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:57:13,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:57:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:13,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:13,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:13,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:57:13,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:13,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:57:13,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:13,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:57:13,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:13,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:57:13,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:13,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:57:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:13,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:13,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:13,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:13,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 03:57:13,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:13,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 447 [2020-10-27 03:57:13,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:13,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 03:57:13,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:13,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 03:57:13,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:13,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:14,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:14,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:14,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:14,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-27 03:57:14,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:14,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-10-27 03:57:14,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:14,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 03:57:14,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:14,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 03:57:14,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:14,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:14,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:14,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:14,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:14,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 03:57:14,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:14,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-10-27 03:57:14,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:14,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 03:57:14,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:14,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 03:57:14,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:14,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:14,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:14,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:14,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:14,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 03:57:14,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:14,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-27 03:57:14,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:14,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 03:57:14,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:14,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-27 03:57:14,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:15,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:15,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:15,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:15,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:15,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:15,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 03:57:15,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:15,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-27 03:57:15,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:15,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 03:57:15,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:15,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 03:57:15,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:15,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:15,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:15,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:15,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:15,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:15,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 03:57:15,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:15,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-27 03:57:15,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:15,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:57:15,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:15,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 03:57:15,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:15,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:15,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:15,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:15,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:15,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 03:57:15,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:15,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-27 03:57:15,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:15,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:57:15,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:15,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 03:57:15,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:15,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:15,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:15,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:15,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:15,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:57:15,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:15,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 03:57:15,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:15,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:57:15,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:15,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 03:57:15,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:15,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:15,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:15,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:15,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:15,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:57:15,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:15,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:57:15,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:15,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:57:15,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:15,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 03:57:15,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:15,813 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-10-27 03:57:15,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1368427373] [2020-10-27 03:57:15,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:57:15,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-27 03:57:15,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092520104] [2020-10-27 03:57:15,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-27 03:57:15,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:57:15,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-27 03:57:15,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=551, Unknown=0, NotChecked=0, Total=600 [2020-10-27 03:57:15,816 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 25 states. [2020-10-27 03:57:18,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:57:18,104 INFO L93 Difference]: Finished difference Result 104 states and 108 transitions. [2020-10-27 03:57:18,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-27 03:57:18,104 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 72 [2020-10-27 03:57:18,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:57:18,106 INFO L225 Difference]: With dead ends: 104 [2020-10-27 03:57:18,106 INFO L226 Difference]: Without dead ends: 99 [2020-10-27 03:57:18,107 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=177, Invalid=1893, Unknown=0, NotChecked=0, Total=2070 [2020-10-27 03:57:18,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-27 03:57:18,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 53. [2020-10-27 03:57:18,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-27 03:57:18,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2020-10-27 03:57:18,113 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 72 [2020-10-27 03:57:18,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:57:18,114 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2020-10-27 03:57:18,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-27 03:57:18,114 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2020-10-27 03:57:18,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-27 03:57:18,115 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:57:18,115 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:57:18,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-27 03:57:18,115 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:57:18,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:57:18,116 INFO L82 PathProgramCache]: Analyzing trace with hash -255402166, now seen corresponding path program 4 times [2020-10-27 03:57:18,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:57:18,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1831071316] [2020-10-27 03:57:18,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:57:18,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:18,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:18,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:18,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-27 03:57:18,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:18,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 616 [2020-10-27 03:57:18,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:18,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 03:57:18,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:57:18,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-27 03:57:18,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:18,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:57:18,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:18,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:18,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:18,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:57:18,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:18,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:57:18,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:18,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:57:18,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:18,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:57:18,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:18,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:57:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:18,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:19,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:19,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-27 03:57:19,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:19,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 375 [2020-10-27 03:57:19,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:19,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 03:57:19,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:19,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-27 03:57:19,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:19,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:19,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:19,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:19,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:19,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 03:57:19,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:19,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-10-27 03:57:19,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:19,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 03:57:19,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:19,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 03:57:19,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:19,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:19,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:19,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:19,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-27 03:57:19,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:19,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-27 03:57:19,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:19,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 03:57:19,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:19,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 03:57:19,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:20,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:20,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:20,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:20,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:20,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-27 03:57:20,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:20,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-27 03:57:20,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:20,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 03:57:20,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:20,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 03:57:20,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:20,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:20,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:20,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:20,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 03:57:20,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:20,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-27 03:57:20,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:20,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 03:57:20,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:20,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-27 03:57:20,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:20,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:20,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:20,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:20,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:20,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 03:57:20,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:20,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-27 03:57:20,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:20,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:57:20,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:20,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 03:57:20,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:20,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:20,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:20,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:20,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 03:57:20,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:20,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-27 03:57:20,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:20,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:57:20,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:20,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 03:57:20,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:20,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:20,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:20,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:20,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 03:57:20,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:20,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 03:57:20,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:20,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:57:20,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:20,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 03:57:20,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:21,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:21,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:21,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:21,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 03:57:21,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:21,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 03:57:21,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:21,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:57:21,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:21,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 03:57:21,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:21,207 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2020-10-27 03:57:21,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1831071316] [2020-10-27 03:57:21,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:57:21,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-27 03:57:21,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228146585] [2020-10-27 03:57:21,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-27 03:57:21,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:57:21,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-27 03:57:21,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=550, Unknown=0, NotChecked=0, Total=600 [2020-10-27 03:57:21,209 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand 25 states. [2020-10-27 03:57:23,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:57:23,787 INFO L93 Difference]: Finished difference Result 84 states and 88 transitions. [2020-10-27 03:57:23,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-27 03:57:23,787 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 73 [2020-10-27 03:57:23,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:57:23,789 INFO L225 Difference]: With dead ends: 84 [2020-10-27 03:57:23,789 INFO L226 Difference]: Without dead ends: 79 [2020-10-27 03:57:23,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=177, Invalid=1893, Unknown=0, NotChecked=0, Total=2070 [2020-10-27 03:57:23,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-27 03:57:23,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 53. [2020-10-27 03:57:23,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-27 03:57:23,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2020-10-27 03:57:23,796 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 73 [2020-10-27 03:57:23,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:57:23,797 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2020-10-27 03:57:23,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-27 03:57:23,797 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2020-10-27 03:57:23,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-27 03:57:23,798 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:57:23,798 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:57:23,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-27 03:57:23,798 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:57:23,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:57:23,799 INFO L82 PathProgramCache]: Analyzing trace with hash -2128139595, now seen corresponding path program 4 times [2020-10-27 03:57:23,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:57:23,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1701371415] [2020-10-27 03:57:23,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:57:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:23,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:23,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:24,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:24,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-27 03:57:24,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:24,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 713 [2020-10-27 03:57:24,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:24,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 03:57:24,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:57:24,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-27 03:57:24,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:24,731 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 23 [2020-10-27 03:57:24,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:57:24,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:24,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:24,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:24,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:57:24,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:24,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:57:24,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:24,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:57:24,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:24,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:57:24,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:24,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:57:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:24,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:24,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:25,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:25,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-27 03:57:25,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:25,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 337 [2020-10-27 03:57:25,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:25,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-27 03:57:25,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:25,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-27 03:57:25,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:25,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:25,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:25,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:25,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:25,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 03:57:25,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:25,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 338 [2020-10-27 03:57:25,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:25,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 03:57:25,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:25,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 03:57:25,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:25,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:25,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:25,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:25,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:25,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:25,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-27 03:57:25,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:25,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-27 03:57:25,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:25,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 03:57:25,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:25,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 03:57:25,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:25,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:25,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:25,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:26,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:26,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 03:57:26,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:26,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-27 03:57:26,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:26,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 03:57:26,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:26,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 03:57:26,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:26,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:26,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:26,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:26,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:26,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 03:57:26,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:26,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-27 03:57:26,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:26,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 03:57:26,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:26,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-27 03:57:26,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:26,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:26,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:26,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:26,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:26,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:26,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 03:57:26,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:26,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-27 03:57:26,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:26,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 03:57:26,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:26,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 03:57:26,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:26,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:26,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:26,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:26,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:26,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 03:57:26,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:26,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-27 03:57:26,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:26,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:57:26,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:26,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 03:57:26,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:26,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:26,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:26,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:26,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:26,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:26,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 03:57:26,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:26,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-27 03:57:26,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:26,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:57:26,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:26,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 03:57:26,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:26,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:26,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:26,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:26,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:26,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:57:26,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:26,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 03:57:26,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:26,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:57:26,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:26,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 03:57:26,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:27,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:27,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:27,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:27,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:57:27,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:27,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:57:27,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:27,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:57:27,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:27,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 03:57:27,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:27,209 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-27 03:57:27,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1701371415] [2020-10-27 03:57:27,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:57:27,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-27 03:57:27,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589440363] [2020-10-27 03:57:27,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-27 03:57:27,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:57:27,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-27 03:57:27,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=648, Unknown=0, NotChecked=0, Total=702 [2020-10-27 03:57:27,211 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand 27 states. [2020-10-27 03:57:29,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:57:29,717 INFO L93 Difference]: Finished difference Result 113 states and 117 transitions. [2020-10-27 03:57:29,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-27 03:57:29,718 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 79 [2020-10-27 03:57:29,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:57:29,719 INFO L225 Difference]: With dead ends: 113 [2020-10-27 03:57:29,719 INFO L226 Difference]: Without dead ends: 108 [2020-10-27 03:57:29,721 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 17 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=195, Invalid=2255, Unknown=0, NotChecked=0, Total=2450 [2020-10-27 03:57:29,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-27 03:57:29,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 56. [2020-10-27 03:57:29,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-27 03:57:29,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2020-10-27 03:57:29,727 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 79 [2020-10-27 03:57:29,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:57:29,728 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2020-10-27 03:57:29,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-27 03:57:29,728 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2020-10-27 03:57:29,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-27 03:57:29,729 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:57:29,729 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:57:29,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-27 03:57:29,729 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:57:29,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:57:29,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1922237798, now seen corresponding path program 4 times [2020-10-27 03:57:29,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:57:29,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1974175809] [2020-10-27 03:57:29,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:57:29,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:29,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:30,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:30,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-27 03:57:30,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:30,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 483 [2020-10-27 03:57:30,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:30,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 03:57:30,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:57:30,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-27 03:57:30,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:30,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:57:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:30,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:30,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:30,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:57:30,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:30,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:57:30,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:30,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:57:30,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:30,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:57:30,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:30,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:57:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:30,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:30,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:30,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 03:57:30,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:30,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-10-27 03:57:30,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:30,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-27 03:57:30,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:30,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-27 03:57:30,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:30,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:30,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:31,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:31,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-27 03:57:31,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:31,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-10-27 03:57:31,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:31,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 03:57:31,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:31,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-27 03:57:31,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:31,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:31,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:31,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:31,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:31,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 03:57:31,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:31,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-10-27 03:57:31,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:31,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 03:57:31,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:31,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 03:57:31,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:31,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:31,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:31,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:31,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:31,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-27 03:57:31,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:31,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-27 03:57:31,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:31,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 03:57:31,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:31,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 03:57:31,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:31,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:31,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:31,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:31,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:31,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-27 03:57:31,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:31,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-27 03:57:31,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:31,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 03:57:31,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:31,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 03:57:31,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:32,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:32,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:32,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:32,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 03:57:32,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:32,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-27 03:57:32,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:32,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 03:57:32,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:32,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-27 03:57:32,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:32,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:32,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:32,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:32,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 03:57:32,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:32,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-27 03:57:32,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:32,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:57:32,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:32,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 03:57:32,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:32,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:32,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:32,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:32,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 03:57:32,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:32,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-27 03:57:32,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:32,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:57:32,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:32,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 03:57:32,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:57:32,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:32,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:32,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:32,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:32,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 03:57:32,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:32,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 03:57:32,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:32,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:57:32,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:32,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 03:57:32,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:32,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:32,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:32,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:32,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 03:57:32,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:32,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 03:57:32,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:32,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:57:32,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:32,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 03:57:32,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:32,724 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-27 03:57:32,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1974175809] [2020-10-27 03:57:32,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:57:32,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-27 03:57:32,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312974655] [2020-10-27 03:57:32,726 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-27 03:57:32,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:57:32,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-27 03:57:32,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2020-10-27 03:57:32,727 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 26 states. [2020-10-27 03:57:35,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:57:35,367 INFO L93 Difference]: Finished difference Result 90 states and 94 transitions. [2020-10-27 03:57:35,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-27 03:57:35,367 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 80 [2020-10-27 03:57:35,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:57:35,368 INFO L225 Difference]: With dead ends: 90 [2020-10-27 03:57:35,368 INFO L226 Difference]: Without dead ends: 85 [2020-10-27 03:57:35,370 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=179, Invalid=2173, Unknown=0, NotChecked=0, Total=2352 [2020-10-27 03:57:35,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-27 03:57:35,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 56. [2020-10-27 03:57:35,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-27 03:57:35,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2020-10-27 03:57:35,381 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 80 [2020-10-27 03:57:35,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:57:35,382 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2020-10-27 03:57:35,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-27 03:57:35,386 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2020-10-27 03:57:35,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-27 03:57:35,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:57:35,389 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:57:35,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-27 03:57:35,389 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:57:35,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:57:35,390 INFO L82 PathProgramCache]: Analyzing trace with hash -346888081, now seen corresponding path program 5 times [2020-10-27 03:57:35,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:57:35,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1224536766] [2020-10-27 03:57:35,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:57:35,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:35,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:35,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:36,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:36,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-27 03:57:36,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:36,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 601 [2020-10-27 03:57:36,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:36,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-27 03:57:36,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:57:36,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-27 03:57:36,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:36,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:57:36,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:36,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:36,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:36,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:57:36,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:36,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:57:36,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:36,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:57:36,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:36,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:57:36,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:36,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:57:36,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:36,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:36,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:36,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:36,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-27 03:57:36,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:36,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-10-27 03:57:36,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:36,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-27 03:57:36,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:36,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-27 03:57:36,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:36,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:36,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:36,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:36,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:36,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-27 03:57:36,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:36,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-10-27 03:57:36,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:36,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 03:57:36,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:36,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-27 03:57:36,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:36,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:36,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:36,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:36,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:37,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:37,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 03:57:37,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:37,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-27 03:57:37,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:37,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 03:57:37,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:37,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 03:57:37,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:37,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:37,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:37,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:37,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:37,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:37,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-27 03:57:37,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:37,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-27 03:57:37,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:37,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 03:57:37,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:37,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 03:57:37,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:37,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:37,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:37,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:37,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:37,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:37,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 03:57:37,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:37,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-27 03:57:37,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:37,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 03:57:37,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:37,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 03:57:37,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:37,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:37,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:37,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:37,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:37,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:37,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 03:57:37,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:37,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-27 03:57:37,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:37,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 03:57:37,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:37,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-27 03:57:37,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:37,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:37,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:37,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:37,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:37,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 03:57:37,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:37,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-27 03:57:37,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:37,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 03:57:37,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:37,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 03:57:37,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:38,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:38,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:38,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:38,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:38,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:38,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 03:57:38,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:38,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-27 03:57:38,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:38,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:57:38,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:38,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 03:57:38,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:38,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:38,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:38,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:38,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:38,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 03:57:38,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:38,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 03:57:38,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:38,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:57:38,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:38,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 03:57:38,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:38,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:38,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:38,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:38,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:38,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:38,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:57:38,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:38,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 03:57:38,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:38,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:57:38,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:38,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 03:57:38,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:38,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:38,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:38,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:38,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:57:38,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:38,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:57:38,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:38,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:57:38,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:38,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 03:57:38,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:38,637 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-10-27 03:57:38,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1224536766] [2020-10-27 03:57:38,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:57:38,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-27 03:57:38,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7394572] [2020-10-27 03:57:38,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-27 03:57:38,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:57:38,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-27 03:57:38,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2020-10-27 03:57:38,640 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 28 states. [2020-10-27 03:57:41,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:57:41,724 INFO L93 Difference]: Finished difference Result 122 states and 126 transitions. [2020-10-27 03:57:41,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-27 03:57:41,724 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 86 [2020-10-27 03:57:41,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:57:41,726 INFO L225 Difference]: With dead ends: 122 [2020-10-27 03:57:41,726 INFO L226 Difference]: Without dead ends: 117 [2020-10-27 03:57:41,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 17 SyntacticMatches, 6 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=195, Invalid=2561, Unknown=0, NotChecked=0, Total=2756 [2020-10-27 03:57:41,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-27 03:57:41,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 59. [2020-10-27 03:57:41,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-27 03:57:41,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2020-10-27 03:57:41,733 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 86 [2020-10-27 03:57:41,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:57:41,734 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2020-10-27 03:57:41,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-27 03:57:41,734 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2020-10-27 03:57:41,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-27 03:57:41,735 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:57:41,735 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:57:41,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-27 03:57:41,735 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:57:41,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:57:41,736 INFO L82 PathProgramCache]: Analyzing trace with hash 2071918507, now seen corresponding path program 5 times [2020-10-27 03:57:41,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:57:41,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [209585203] [2020-10-27 03:57:41,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:57:41,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:41,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:42,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:42,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-27 03:57:42,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:42,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 535 [2020-10-27 03:57:42,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:42,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-27 03:57:42,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:57:42,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-27 03:57:42,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:42,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:57:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:42,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:42,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:42,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:57:42,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:42,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:57:42,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:42,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:57:42,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:42,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:57:42,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:42,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:57:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:42,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:42,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:42,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-27 03:57:42,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:42,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-10-27 03:57:42,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:42,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-27 03:57:42,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:42,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-27 03:57:42,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:42,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:42,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:43,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:43,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 03:57:43,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:43,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-10-27 03:57:43,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:43,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 03:57:43,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:43,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-27 03:57:43,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:43,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:43,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:43,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:43,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-27 03:57:43,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:43,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-27 03:57:43,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:43,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 03:57:43,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:43,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-27 03:57:43,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:43,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:43,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:43,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:43,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:43,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 03:57:43,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:43,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-27 03:57:43,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:43,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 03:57:43,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:43,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 03:57:43,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:43,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:43,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:43,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:43,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:43,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-27 03:57:43,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:43,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-27 03:57:43,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:43,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 03:57:43,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:43,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 03:57:43,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:43,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:43,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:43,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:43,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-27 03:57:43,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:43,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-27 03:57:43,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:43,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 03:57:43,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:43,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 03:57:43,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:44,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:44,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:44,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:44,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 03:57:44,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:44,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-27 03:57:44,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:44,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 03:57:44,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:44,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-27 03:57:44,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:44,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:44,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:44,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:44,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:44,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 03:57:44,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:44,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-27 03:57:44,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:44,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:57:44,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:44,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 03:57:44,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:44,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:44,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:44,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:44,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:44,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 03:57:44,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:44,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 03:57:44,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:44,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:57:44,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:44,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 03:57:44,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:44,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:44,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:44,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:44,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:44,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 03:57:44,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:44,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 03:57:44,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:44,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:57:44,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:44,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 03:57:44,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:44,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:44,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:44,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:44,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 03:57:44,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:44,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 03:57:44,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:44,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:57:44,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:44,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 03:57:44,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:44,778 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2020-10-27 03:57:44,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [209585203] [2020-10-27 03:57:44,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:57:44,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-27 03:57:44,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095567272] [2020-10-27 03:57:44,780 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-27 03:57:44,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:57:44,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-27 03:57:44,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2020-10-27 03:57:44,781 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand 28 states. [2020-10-27 03:57:47,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:57:47,767 INFO L93 Difference]: Finished difference Result 96 states and 100 transitions. [2020-10-27 03:57:47,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-27 03:57:47,771 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 87 [2020-10-27 03:57:47,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:57:47,772 INFO L225 Difference]: With dead ends: 96 [2020-10-27 03:57:47,772 INFO L226 Difference]: Without dead ends: 91 [2020-10-27 03:57:47,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 19 SyntacticMatches, 4 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=195, Invalid=2561, Unknown=0, NotChecked=0, Total=2756 [2020-10-27 03:57:47,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-10-27 03:57:47,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 59. [2020-10-27 03:57:47,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-27 03:57:47,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2020-10-27 03:57:47,778 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 87 [2020-10-27 03:57:47,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:57:47,779 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2020-10-27 03:57:47,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-27 03:57:47,779 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2020-10-27 03:57:47,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-27 03:57:47,780 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:57:47,780 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:57:47,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-27 03:57:47,780 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:57:47,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:57:47,781 INFO L82 PathProgramCache]: Analyzing trace with hash -104981098, now seen corresponding path program 5 times [2020-10-27 03:57:47,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:57:47,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [738640651] [2020-10-27 03:57:47,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:57:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:47,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:47,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:48,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:48,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-27 03:57:48,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:48,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 689 [2020-10-27 03:57:48,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:48,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-27 03:57:48,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:57:48,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-27 03:57:48,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:48,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:57:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:48,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:48,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:48,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:57:48,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:48,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:57:48,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:48,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:57:48,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:48,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:57:48,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:48,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:57:48,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:48,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:48,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:48,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:48,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-27 03:57:48,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:48,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-10-27 03:57:48,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:48,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 49 [2020-10-27 03:57:48,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:48,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-27 03:57:48,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:49,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:49,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:49,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:49,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:49,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-27 03:57:49,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:49,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-10-27 03:57:49,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:49,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-27 03:57:49,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:49,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-27 03:57:49,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:49,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:49,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:49,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:49,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:49,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-27 03:57:49,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:49,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-10-27 03:57:49,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:49,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 03:57:49,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:49,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-27 03:57:49,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:49,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:49,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:49,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:49,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:50,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:50,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 03:57:50,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:50,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-10-27 03:57:50,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:50,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 03:57:50,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:50,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 03:57:50,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-27 03:57:50,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:50,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:50,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:50,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:50,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-27 03:57:50,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:50,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-27 03:57:50,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:50,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 03:57:50,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:50,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 03:57:50,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:50,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:50,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:50,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:50,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:50,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 03:57:50,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:50,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-27 03:57:50,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:50,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 03:57:50,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:50,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 03:57:50,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:50,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:50,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:50,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:50,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:50,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 03:57:50,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:50,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-27 03:57:50,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:50,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 03:57:50,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:50,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-27 03:57:50,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:50,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:50,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:50,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:50,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:50,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:50,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 03:57:50,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:50,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-27 03:57:50,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:50,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 03:57:50,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:50,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 03:57:50,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:51,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:51,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:51,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:51,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:51,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 03:57:51,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:51,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-27 03:57:51,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:51,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:57:51,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:51,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 03:57:51,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:57:51,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:51,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:51,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:51,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:51,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 03:57:51,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:51,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-27 03:57:51,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:51,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:57:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 03:57:51,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:51,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:51,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:51,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:51,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:51,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:51,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:57:51,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:57:51,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 03:57:51,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:51,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:57:51,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:51,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 03:57:51,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:51,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:51,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:51,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:51,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:57:51,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:51,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:57:51,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:51,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:57:51,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:51,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 03:57:51,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:51,655 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-27 03:57:51,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [738640651] [2020-10-27 03:57:51,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:57:51,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-27 03:57:51,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873680160] [2020-10-27 03:57:51,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-27 03:57:51,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:57:51,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-27 03:57:51,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=813, Unknown=0, NotChecked=0, Total=870 [2020-10-27 03:57:51,658 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand 30 states. [2020-10-27 03:57:55,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:57:55,119 INFO L93 Difference]: Finished difference Result 131 states and 135 transitions. [2020-10-27 03:57:55,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-27 03:57:55,119 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 93 [2020-10-27 03:57:55,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:57:55,121 INFO L225 Difference]: With dead ends: 131 [2020-10-27 03:57:55,121 INFO L226 Difference]: Without dead ends: 126 [2020-10-27 03:57:55,123 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=211, Invalid=2981, Unknown=0, NotChecked=0, Total=3192 [2020-10-27 03:57:55,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-27 03:57:55,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 62. [2020-10-27 03:57:55,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-27 03:57:55,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2020-10-27 03:57:55,129 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 93 [2020-10-27 03:57:55,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:57:55,129 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2020-10-27 03:57:55,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-27 03:57:55,129 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2020-10-27 03:57:55,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-27 03:57:55,130 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:57:55,130 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:57:55,130 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-27 03:57:55,131 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:57:55,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:57:55,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1811964441, now seen corresponding path program 5 times [2020-10-27 03:57:55,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:57:55,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1429893951] [2020-10-27 03:57:55,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:57:55,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:55,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:55,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:55,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 03:57:55,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:55,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 808 [2020-10-27 03:57:55,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:55,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-27 03:57:55,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:57:55,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-27 03:57:55,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:56,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:57:56,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:56,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:56,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:56,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:57:56,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:56,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:57:56,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:56,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:57:56,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:56,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:57:56,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:56,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:57:56,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:56,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:56,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:56,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-27 03:57:56,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:56,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369 [2020-10-27 03:57:56,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:56,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 49 [2020-10-27 03:57:56,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:56,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-27 03:57:56,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:56,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:56,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:56,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:56,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:56,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-27 03:57:56,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:56,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-27 03:57:56,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:56,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-27 03:57:56,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:56,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-27 03:57:56,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:56,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:56,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:57,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:57,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 03:57:57,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:57,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-10-27 03:57:57,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:57,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 03:57:57,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:57,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-27 03:57:57,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:57,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:57,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:57,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:57,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:57,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-27 03:57:57,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:57,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-27 03:57:57,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:57,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 03:57:57,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:57,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-27 03:57:57,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:57,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:57,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:57,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:57,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 03:57:57,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:57,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-10-27 03:57:57,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:57,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 03:57:57,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:57,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 03:57:57,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:57,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:57,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:57,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:57,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:57,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-27 03:57:57,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:57,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-27 03:57:57,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:57,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 03:57:57,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:57,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 03:57:57,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:57,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:57,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:58,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:58,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-27 03:57:58,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:58,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-27 03:57:58,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:58,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 03:57:58,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:58,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 03:57:58,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:58,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:58,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:58,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:58,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:58,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 03:57:58,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:58,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-27 03:57:58,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:58,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 03:57:58,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:58,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-27 03:57:58,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:58,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:58,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:58,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:58,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:58,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 03:57:58,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:58,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-27 03:57:58,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:58,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:57:58,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:58,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 03:57:58,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:58,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:58,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:58,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:58,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 03:57:58,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:58,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 03:57:58,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:58,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:57:58,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:58,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 03:57:58,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:58,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:58,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:58,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:58,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:58,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 03:57:58,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:58,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 03:57:58,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:58,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:57:58,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:58,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 03:57:58,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:58,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:57:58,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:57:58,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:57:58,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:57:58,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 03:57:58,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:57:58,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 03:57:58,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:57:58,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:57:58,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:57:58,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 03:57:58,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:57:58,868 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-27 03:57:58,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1429893951] [2020-10-27 03:57:58,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:57:58,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-27 03:57:58,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141465352] [2020-10-27 03:57:58,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-27 03:57:58,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:57:58,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-27 03:57:58,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=813, Unknown=0, NotChecked=0, Total=870 [2020-10-27 03:57:58,871 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand 30 states. [2020-10-27 03:58:02,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:58:02,202 INFO L93 Difference]: Finished difference Result 102 states and 106 transitions. [2020-10-27 03:58:02,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-27 03:58:02,203 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 94 [2020-10-27 03:58:02,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:58:02,204 INFO L225 Difference]: With dead ends: 102 [2020-10-27 03:58:02,204 INFO L226 Difference]: Without dead ends: 97 [2020-10-27 03:58:02,206 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 18 SyntacticMatches, 7 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=211, Invalid=2981, Unknown=0, NotChecked=0, Total=3192 [2020-10-27 03:58:02,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-27 03:58:02,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 62. [2020-10-27 03:58:02,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-27 03:58:02,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2020-10-27 03:58:02,211 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 94 [2020-10-27 03:58:02,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:58:02,212 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2020-10-27 03:58:02,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-27 03:58:02,212 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2020-10-27 03:58:02,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-27 03:58:02,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:58:02,213 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:58:02,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-27 03:58:02,213 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:58:02,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:58:02,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1657711522, now seen corresponding path program 6 times [2020-10-27 03:58:02,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:58:02,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [492320197] [2020-10-27 03:58:02,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:58:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:02,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:02,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:03,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:03,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-27 03:58:03,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:03,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 797 [2020-10-27 03:58:03,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:03,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-27 03:58:03,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:58:03,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-27 03:58:03,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:03,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:58:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:03,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:03,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:03,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:58:03,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:03,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:58:03,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:03,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:58:03,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:03,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:58:03,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:03,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:58:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:03,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:03,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:03,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:03,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-27 03:58:03,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:03,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 507 [2020-10-27 03:58:03,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:03,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 53 [2020-10-27 03:58:03,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:03,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-27 03:58:03,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:03,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:03,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:03,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:04,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:04,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-27 03:58:04,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:04,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-10-27 03:58:04,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:04,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-27 03:58:04,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:04,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-27 03:58:04,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:04,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:04,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:04,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:04,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:04,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-27 03:58:04,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:04,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 320 [2020-10-27 03:58:04,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:04,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-27 03:58:04,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:04,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-27 03:58:04,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:04,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:04,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:04,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:04,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:04,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-27 03:58:04,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:04,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-10-27 03:58:04,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:04,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 03:58:04,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:04,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-27 03:58:04,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:04,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:04,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:04,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:04,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:05,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:05,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 03:58:05,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:05,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-27 03:58:05,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:05,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 03:58:05,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:05,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 03:58:05,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:05,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:05,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:05,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:05,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:05,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-27 03:58:05,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:05,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-27 03:58:05,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:05,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 03:58:05,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:05,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 03:58:05,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:05,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:05,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:05,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:05,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:05,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 03:58:05,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:05,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-10-27 03:58:05,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:05,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 03:58:05,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:05,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 03:58:05,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:05,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:05,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:05,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:05,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:05,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:05,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 03:58:05,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:05,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-27 03:58:05,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:05,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 03:58:05,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:05,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-27 03:58:05,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:06,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:06,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:06,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:06,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:06,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:06,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 03:58:06,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:06,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-27 03:58:06,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:06,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 03:58:06,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:06,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 03:58:06,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:06,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:06,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:06,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:06,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:06,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 03:58:06,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:06,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-27 03:58:06,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:06,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:58:06,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:06,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 03:58:06,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:06,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:06,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:06,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:06,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:06,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:06,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 03:58:06,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:06,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 03:58:06,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:06,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:58:06,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:06,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 03:58:06,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:06,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:06,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:06,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:06,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:06,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:58:06,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:06,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 03:58:06,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:06,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:58:06,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:06,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 03:58:06,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:06,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:06,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:06,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:06,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:58:06,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:06,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:58:06,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:06,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:58:06,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:06,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 03:58:06,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:06,871 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2020-10-27 03:58:06,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [492320197] [2020-10-27 03:58:06,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:58:06,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-27 03:58:06,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863127418] [2020-10-27 03:58:06,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-27 03:58:06,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:58:06,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-27 03:58:06,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=931, Unknown=0, NotChecked=0, Total=992 [2020-10-27 03:58:06,873 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand 32 states. [2020-10-27 03:58:10,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:58:10,740 INFO L93 Difference]: Finished difference Result 140 states and 144 transitions. [2020-10-27 03:58:10,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-27 03:58:10,741 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 100 [2020-10-27 03:58:10,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:58:10,743 INFO L225 Difference]: With dead ends: 140 [2020-10-27 03:58:10,744 INFO L226 Difference]: Without dead ends: 135 [2020-10-27 03:58:10,745 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=227, Invalid=3433, Unknown=0, NotChecked=0, Total=3660 [2020-10-27 03:58:10,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-27 03:58:10,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 65. [2020-10-27 03:58:10,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-27 03:58:10,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2020-10-27 03:58:10,754 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 100 [2020-10-27 03:58:10,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:58:10,754 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2020-10-27 03:58:10,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-27 03:58:10,755 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2020-10-27 03:58:10,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-27 03:58:10,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:58:10,755 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:58:10,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-27 03:58:10,756 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:58:10,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:58:10,756 INFO L82 PathProgramCache]: Analyzing trace with hash -527580404, now seen corresponding path program 6 times [2020-10-27 03:58:10,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:58:10,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1531462377] [2020-10-27 03:58:10,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:58:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:10,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:11,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:11,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-27 03:58:11,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:11,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 714 [2020-10-27 03:58:11,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:11,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-27 03:58:11,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:58:11,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-27 03:58:11,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:11,610 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 12 [2020-10-27 03:58:11,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:58:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:11,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:11,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:11,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:58:11,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:11,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:58:11,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:11,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:58:11,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:11,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:58:11,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:11,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:58:11,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:11,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:12,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:12,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-27 03:58:12,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:12,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 583 [2020-10-27 03:58:12,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:12,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 53 [2020-10-27 03:58:12,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:12,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-27 03:58:12,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:12,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:12,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:12,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:12,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-27 03:58:12,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:12,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-10-27 03:58:12,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:12,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-27 03:58:12,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:12,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-27 03:58:12,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:12,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:12,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:13,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:13,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-27 03:58:13,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:13,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-10-27 03:58:13,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:13,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-27 03:58:13,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:13,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-27 03:58:13,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:13,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:13,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:13,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:13,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:13,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 03:58:13,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:13,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-27 03:58:13,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:13,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 03:58:13,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:13,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-27 03:58:13,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:13,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:13,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:13,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:13,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:13,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-27 03:58:13,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:13,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-10-27 03:58:13,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:13,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 03:58:13,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:13,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-27 03:58:13,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:13,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:13,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:13,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:14,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:14,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 03:58:14,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:14,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-27 03:58:14,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:14,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 03:58:14,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:14,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 03:58:14,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:14,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:14,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:14,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:14,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:14,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-27 03:58:14,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:14,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-27 03:58:14,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:14,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 03:58:14,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:14,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 03:58:14,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:14,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:14,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:14,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:14,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:14,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-27 03:58:14,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:14,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-27 03:58:14,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:14,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 03:58:14,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:14,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 03:58:14,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:14,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:14,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:14,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:14,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 03:58:14,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:14,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-27 03:58:14,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:14,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 03:58:14,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:14,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-27 03:58:14,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:14,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:14,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:14,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:14,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 03:58:14,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:14,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-27 03:58:14,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:14,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:58:14,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:14,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 03:58:14,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:15,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:15,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:15,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:15,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 03:58:15,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:15,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 03:58:15,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:15,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:58:15,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:15,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 03:58:15,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:15,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:15,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:15,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:15,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:15,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 03:58:15,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:15,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 03:58:15,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:15,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:58:15,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:15,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 03:58:15,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:15,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:15,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:15,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:15,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 03:58:15,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:15,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 03:58:15,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:15,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:58:15,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:15,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 03:58:15,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:15,606 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-10-27 03:58:15,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1531462377] [2020-10-27 03:58:15,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:58:15,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-27 03:58:15,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770409313] [2020-10-27 03:58:15,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-27 03:58:15,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:58:15,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-27 03:58:15,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=990, Unknown=0, NotChecked=0, Total=1056 [2020-10-27 03:58:15,608 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 33 states. [2020-10-27 03:58:19,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:58:19,705 INFO L93 Difference]: Finished difference Result 108 states and 112 transitions. [2020-10-27 03:58:19,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-27 03:58:19,707 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 101 [2020-10-27 03:58:19,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:58:19,708 INFO L225 Difference]: With dead ends: 108 [2020-10-27 03:58:19,708 INFO L226 Difference]: Without dead ends: 103 [2020-10-27 03:58:19,710 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 20 SyntacticMatches, 6 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=245, Invalid=3537, Unknown=0, NotChecked=0, Total=3782 [2020-10-27 03:58:19,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-10-27 03:58:19,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 65. [2020-10-27 03:58:19,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-27 03:58:19,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2020-10-27 03:58:19,715 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 101 [2020-10-27 03:58:19,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:58:19,716 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2020-10-27 03:58:19,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-27 03:58:19,716 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2020-10-27 03:58:19,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-27 03:58:19,717 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:58:19,717 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:58:19,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-27 03:58:19,717 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:58:19,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:58:19,718 INFO L82 PathProgramCache]: Analyzing trace with hash -335604873, now seen corresponding path program 6 times [2020-10-27 03:58:19,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:58:19,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2016287991] [2020-10-27 03:58:19,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:58:19,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:19,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:19,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:20,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:20,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-27 03:58:20,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:20,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 770 [2020-10-27 03:58:20,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:20,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-27 03:58:20,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:58:20,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-27 03:58:20,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:20,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:58:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:20,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:20,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:20,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:58:20,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:20,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:58:20,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:20,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:58:20,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:20,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:58:20,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:20,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:58:20,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:20,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:20,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:21,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:21,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 03:58:21,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:21,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 499 [2020-10-27 03:58:21,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:21,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 57 [2020-10-27 03:58:21,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:21,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-27 03:58:21,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:21,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:21,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:21,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:21,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:21,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:21,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-27 03:58:21,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:21,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 434 [2020-10-27 03:58:21,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:21,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-27 03:58:21,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:21,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-27 03:58:21,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:21,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:21,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:21,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:22,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:22,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-27 03:58:22,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:22,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-10-27 03:58:22,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:22,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-27 03:58:22,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:22,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-27 03:58:22,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:22,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:22,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:22,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:22,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:22,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:22,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-27 03:58:22,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:22,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-10-27 03:58:22,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:22,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-27 03:58:22,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:22,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-27 03:58:22,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:22,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:22,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:22,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:22,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:22,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-27 03:58:22,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:22,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-10-27 03:58:22,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:22,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 03:58:22,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:22,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-27 03:58:22,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:22,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:22,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:22,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:22,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:23,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:23,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 03:58:23,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:23,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-10-27 03:58:23,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:23,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 03:58:23,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:23,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 03:58:23,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:23,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:23,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:23,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:23,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:23,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-27 03:58:23,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:23,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-27 03:58:23,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:23,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 03:58:23,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:23,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 03:58:23,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:23,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:23,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:23,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:23,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:23,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 03:58:23,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:23,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-27 03:58:23,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:23,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 03:58:23,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:23,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 03:58:23,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:23,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:23,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:23,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:23,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:23,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 03:58:23,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:23,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-27 03:58:23,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:23,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 03:58:23,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:23,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-27 03:58:23,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:24,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:24,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:24,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:24,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:24,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:24,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 03:58:24,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:24,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-27 03:58:24,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:24,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 03:58:24,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:24,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 03:58:24,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:24,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:24,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:24,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:24,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:24,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 03:58:24,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:24,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 03:58:24,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:24,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:58:24,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:24,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 03:58:24,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:24,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:24,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:24,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:24,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:24,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 03:58:24,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:24,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 03:58:24,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:24,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:58:24,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:24,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 03:58:24,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:24,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:24,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:24,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:24,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:24,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:24,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:58:24,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:24,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 03:58:24,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:24,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:58:24,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:24,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 03:58:24,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:24,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:24,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:24,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:24,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:24,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:58:24,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:24,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:58:24,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:24,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:58:24,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:24,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 03:58:24,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:24,904 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2020-10-27 03:58:24,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2016287991] [2020-10-27 03:58:24,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:58:24,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-27 03:58:24,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137182878] [2020-10-27 03:58:24,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-27 03:58:24,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:58:24,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-27 03:58:24,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=1057, Unknown=0, NotChecked=0, Total=1122 [2020-10-27 03:58:24,906 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 34 states. [2020-10-27 03:58:29,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:58:29,406 INFO L93 Difference]: Finished difference Result 149 states and 153 transitions. [2020-10-27 03:58:29,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-27 03:58:29,407 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 107 [2020-10-27 03:58:29,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:58:29,408 INFO L225 Difference]: With dead ends: 149 [2020-10-27 03:58:29,408 INFO L226 Difference]: Without dead ends: 144 [2020-10-27 03:58:29,410 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 25 SyntacticMatches, 4 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=243, Invalid=3917, Unknown=0, NotChecked=0, Total=4160 [2020-10-27 03:58:29,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-27 03:58:29,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 68. [2020-10-27 03:58:29,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-27 03:58:29,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions. [2020-10-27 03:58:29,416 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 107 [2020-10-27 03:58:29,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:58:29,416 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions. [2020-10-27 03:58:29,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-27 03:58:29,416 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions. [2020-10-27 03:58:29,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-27 03:58:29,417 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:58:29,417 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:58:29,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-27 03:58:29,417 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:58:29,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:58:29,418 INFO L82 PathProgramCache]: Analyzing trace with hash -204163892, now seen corresponding path program 6 times [2020-10-27 03:58:29,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:58:29,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1335625324] [2020-10-27 03:58:29,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:58:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:29,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:30,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:30,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-27 03:58:30,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:30,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 776 [2020-10-27 03:58:30,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:30,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-27 03:58:30,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:58:30,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-27 03:58:30,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:30,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:58:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:30,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:30,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:30,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:58:30,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:30,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:58:30,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:30,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:58:30,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:30,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:58:30,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:30,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:58:30,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:30,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:30,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:30,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 03:58:30,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:30,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 463 [2020-10-27 03:58:30,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:30,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 57 [2020-10-27 03:58:30,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:30,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-27 03:58:30,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:30,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:30,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:30,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:31,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:31,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-27 03:58:31,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:31,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 423 [2020-10-27 03:58:31,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:31,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-27 03:58:31,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:31,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-27 03:58:31,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:31,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:31,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:31,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:31,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-27 03:58:31,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:31,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 351 [2020-10-27 03:58:31,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:31,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-27 03:58:31,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:31,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-27 03:58:31,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:31,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:31,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:31,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:32,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:32,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-27 03:58:32,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:32,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-10-27 03:58:32,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:32,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-27 03:58:32,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:32,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-27 03:58:32,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:32,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:32,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:32,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:32,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 03:58:32,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:32,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-27 03:58:32,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:32,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 03:58:32,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:32,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-27 03:58:32,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:32,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:32,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:32,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:32,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-27 03:58:32,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:32,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-27 03:58:32,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:32,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 03:58:32,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:32,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-27 03:58:32,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:32,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:32,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:32,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:32,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 03:58:32,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:32,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-27 03:58:32,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:32,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 03:58:32,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:32,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 03:58:32,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:33,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:33,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:33,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:33,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-27 03:58:33,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:33,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-27 03:58:33,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:33,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 03:58:33,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:33,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 03:58:33,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:33,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:33,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:33,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:33,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-27 03:58:33,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:33,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-27 03:58:33,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:33,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 03:58:33,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:33,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 03:58:33,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:33,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:33,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:33,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:33,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 03:58:33,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:33,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-27 03:58:33,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:33,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 03:58:33,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:33,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-27 03:58:33,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:33,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:33,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:33,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:33,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 03:58:33,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:33,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 03:58:33,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:33,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:58:33,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:33,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 03:58:33,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:33,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:33,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:33,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:33,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:33,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 03:58:33,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:33,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 03:58:33,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:33,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:58:33,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:33,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 03:58:33,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:34,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:34,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:34,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:34,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:34,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 03:58:34,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:34,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 03:58:34,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:34,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:58:34,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:34,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 03:58:34,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:34,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:34,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:34,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:34,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:34,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 03:58:34,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:34,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:58:34,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:34,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:58:34,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:34,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 03:58:34,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:34,386 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2020-10-27 03:58:34,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1335625324] [2020-10-27 03:58:34,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:58:34,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-27 03:58:34,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821554013] [2020-10-27 03:58:34,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-27 03:58:34,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:58:34,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-27 03:58:34,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=1057, Unknown=0, NotChecked=0, Total=1122 [2020-10-27 03:58:34,388 INFO L87 Difference]: Start difference. First operand 68 states and 72 transitions. Second operand 34 states. [2020-10-27 03:58:38,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:58:38,967 INFO L93 Difference]: Finished difference Result 114 states and 118 transitions. [2020-10-27 03:58:38,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-27 03:58:38,967 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 108 [2020-10-27 03:58:38,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:58:38,968 INFO L225 Difference]: With dead ends: 114 [2020-10-27 03:58:38,968 INFO L226 Difference]: Without dead ends: 109 [2020-10-27 03:58:38,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 24 SyntacticMatches, 5 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=243, Invalid=3917, Unknown=0, NotChecked=0, Total=4160 [2020-10-27 03:58:38,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-27 03:58:38,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 68. [2020-10-27 03:58:38,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-27 03:58:38,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions. [2020-10-27 03:58:38,974 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 108 [2020-10-27 03:58:38,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:58:38,975 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions. [2020-10-27 03:58:38,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-27 03:58:38,975 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions. [2020-10-27 03:58:38,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-27 03:58:38,976 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:58:38,976 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:58:38,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-27 03:58:38,976 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:58:38,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:58:38,976 INFO L82 PathProgramCache]: Analyzing trace with hash -168602411, now seen corresponding path program 7 times [2020-10-27 03:58:38,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:58:38,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [463735293] [2020-10-27 03:58:38,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:58:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:38,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:39,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:39,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:39,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-27 03:58:39,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:39,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 887 [2020-10-27 03:58:39,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:39,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-27 03:58:39,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:58:39,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-27 03:58:39,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:39,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:58:39,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:39,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:39,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:39,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:58:39,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:39,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:58:39,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:39,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:58:39,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:39,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:58:39,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:39,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:58:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:40,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:40,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:40,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:40,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-27 03:58:40,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:40,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 593 [2020-10-27 03:58:40,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:40,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 61 [2020-10-27 03:58:40,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:40,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-27 03:58:40,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:40,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:40,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:40,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:41,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:41,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 03:58:41,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:41,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 509 [2020-10-27 03:58:41,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:41,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-27 03:58:41,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:41,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-27 03:58:41,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:41,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:41,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:41,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:41,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:41,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:41,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-27 03:58:41,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:41,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 403 [2020-10-27 03:58:41,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:41,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-27 03:58:41,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:41,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-27 03:58:41,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:41,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:41,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:41,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:41,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:42,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:42,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-27 03:58:42,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:42,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 361 [2020-10-27 03:58:42,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:42,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-27 03:58:42,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:42,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-27 03:58:42,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:42,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:42,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:42,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:42,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:42,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:42,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-27 03:58:42,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:42,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-10-27 03:58:42,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:42,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-27 03:58:42,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:42,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-27 03:58:42,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:42,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:42,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:42,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:42,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:42,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:42,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-27 03:58:42,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:42,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-27 03:58:42,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:42,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 03:58:42,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:42,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-27 03:58:42,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:42,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:42,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:42,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:43,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:43,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 03:58:43,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:43,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-27 03:58:43,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:43,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 03:58:43,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:43,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 03:58:43,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:43,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:43,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:43,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:43,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:43,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-27 03:58:43,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:43,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-27 03:58:43,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:43,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 03:58:43,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:43,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 03:58:43,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:43,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:43,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:43,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:43,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:43,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:43,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 03:58:43,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:43,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-27 03:58:43,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:43,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 03:58:43,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:43,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 03:58:43,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:43,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:43,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:43,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:43,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:43,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 03:58:43,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:43,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-27 03:58:43,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:43,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 03:58:43,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:43,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-27 03:58:43,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:43,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:43,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:43,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:43,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:43,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:43,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 03:58:43,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:43,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-27 03:58:43,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:43,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 03:58:43,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:43,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 03:58:43,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:44,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:44,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:44,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:44,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:44,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:44,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 03:58:44,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:44,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-27 03:58:44,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:44,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:58:44,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:44,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 03:58:44,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:44,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:44,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:44,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:44,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:44,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 03:58:44,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:44,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 03:58:44,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:44,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:58:44,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:44,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 03:58:44,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:44,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:44,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:44,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:44,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:44,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:44,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:58:44,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:58:44,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 03:58:44,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:44,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:58:44,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:44,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 03:58:44,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:44,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:44,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:44,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:44,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:58:44,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:44,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:58:44,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:44,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:58:44,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:44,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 03:58:44,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:44,747 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2020-10-27 03:58:44,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [463735293] [2020-10-27 03:58:44,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:58:44,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2020-10-27 03:58:44,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388860939] [2020-10-27 03:58:44,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-10-27 03:58:44,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:58:44,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-10-27 03:58:44,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=1191, Unknown=0, NotChecked=0, Total=1260 [2020-10-27 03:58:44,750 INFO L87 Difference]: Start difference. First operand 68 states and 72 transitions. Second operand 36 states. [2020-10-27 03:58:49,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:58:49,678 INFO L93 Difference]: Finished difference Result 158 states and 162 transitions. [2020-10-27 03:58:49,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-27 03:58:49,682 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 114 [2020-10-27 03:58:49,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:58:49,684 INFO L225 Difference]: With dead ends: 158 [2020-10-27 03:58:49,684 INFO L226 Difference]: Without dead ends: 153 [2020-10-27 03:58:49,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 27 SyntacticMatches, 4 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=259, Invalid=4433, Unknown=0, NotChecked=0, Total=4692 [2020-10-27 03:58:49,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-10-27 03:58:49,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 71. [2020-10-27 03:58:49,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-27 03:58:49,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2020-10-27 03:58:49,690 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 114 [2020-10-27 03:58:49,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:58:49,691 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2020-10-27 03:58:49,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-10-27 03:58:49,691 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2020-10-27 03:58:49,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-27 03:58:49,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:58:49,692 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:58:49,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-27 03:58:49,692 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:58:49,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:58:49,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1047105171, now seen corresponding path program 7 times [2020-10-27 03:58:49,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:58:49,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [286529947] [2020-10-27 03:58:49,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:58:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:49,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:50,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:50,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 03:58:50,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:50,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 860 [2020-10-27 03:58:50,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:50,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-27 03:58:50,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:58:50,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-27 03:58:50,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:50,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:58:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:50,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:50,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:50,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:58:50,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:50,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:58:50,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:50,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:58:50,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:50,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:58:50,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:50,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:58:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:50,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:51,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:51,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-27 03:58:51,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:51,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 567 [2020-10-27 03:58:51,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:51,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 61 [2020-10-27 03:58:51,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:51,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-27 03:58:51,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:51,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:51,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:51,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:51,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 03:58:51,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:51,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 475 [2020-10-27 03:58:51,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:51,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-27 03:58:51,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:51,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-27 03:58:51,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:51,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:51,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:51,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:52,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:52,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-27 03:58:52,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:52,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 433 [2020-10-27 03:58:52,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:52,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-27 03:58:52,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:52,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-27 03:58:52,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:52,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:52,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:52,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:52,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:52,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-27 03:58:52,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:52,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-10-27 03:58:52,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:52,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-27 03:58:52,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:52,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-27 03:58:52,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:52,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:52,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:52,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:53,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:53,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-27 03:58:53,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:53,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-10-27 03:58:53,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:53,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-27 03:58:53,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:53,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-27 03:58:53,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:53,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:53,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:53,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:53,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 03:58:53,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:53,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-27 03:58:53,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:53,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 03:58:53,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:53,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-27 03:58:53,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:53,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:53,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:53,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:53,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:53,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-27 03:58:53,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:53,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-27 03:58:53,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:53,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 03:58:53,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:53,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-27 03:58:53,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:53,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:53,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:54,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:54,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 03:58:54,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:54,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-27 03:58:54,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:54,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 03:58:54,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:54,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 03:58:54,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:54,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:54,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:54,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:54,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-27 03:58:54,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:54,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-27 03:58:54,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:54,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 03:58:54,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:54,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 03:58:54,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:54,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:54,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:54,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:54,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-27 03:58:54,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:54,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-27 03:58:54,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:54,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 03:58:54,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:54,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 03:58:54,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:54,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:54,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:54,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:54,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 03:58:54,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:54,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-27 03:58:54,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:54,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 03:58:54,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:54,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-27 03:58:54,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:54,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:54,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:54,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:54,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 03:58:54,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:54,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 03:58:54,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:54,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:58:54,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:54,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 03:58:54,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:55,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:55,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:55,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:55,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:55,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 03:58:55,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:55,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 03:58:55,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:55,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:58:55,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:55,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 03:58:55,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:55,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:55,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:55,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:55,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 03:58:55,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:55,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 03:58:55,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:55,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:58:55,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:55,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 03:58:55,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:55,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:58:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:58:55,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:58:55,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:58:55,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 03:58:55,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:58:55,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:58:55,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:58:55,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:58:55,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:58:55,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 03:58:55,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:58:55,619 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 0 proven. 158 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2020-10-27 03:58:55,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [286529947] [2020-10-27 03:58:55,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:58:55,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2020-10-27 03:58:55,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821169445] [2020-10-27 03:58:55,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-10-27 03:58:55,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:58:55,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-10-27 03:58:55,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=1258, Unknown=0, NotChecked=0, Total=1332 [2020-10-27 03:58:55,621 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand 37 states. [2020-10-27 03:59:00,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:59:00,548 INFO L93 Difference]: Finished difference Result 120 states and 124 transitions. [2020-10-27 03:59:00,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-27 03:59:00,554 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 115 [2020-10-27 03:59:00,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:59:00,555 INFO L225 Difference]: With dead ends: 120 [2020-10-27 03:59:00,555 INFO L226 Difference]: Without dead ends: 115 [2020-10-27 03:59:00,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 25 SyntacticMatches, 5 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=279, Invalid=4551, Unknown=0, NotChecked=0, Total=4830 [2020-10-27 03:59:00,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-27 03:59:00,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 71. [2020-10-27 03:59:00,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-27 03:59:00,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2020-10-27 03:59:00,562 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 115 [2020-10-27 03:59:00,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:59:00,562 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2020-10-27 03:59:00,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-10-27 03:59:00,563 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2020-10-27 03:59:00,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-27 03:59:00,563 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:59:00,564 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:59:00,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-27 03:59:00,564 INFO L429 AbstractCegarLoop]: === Iteration 31 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:59:00,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:59:00,564 INFO L82 PathProgramCache]: Analyzing trace with hash -181160, now seen corresponding path program 7 times [2020-10-27 03:59:00,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:59:00,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1250333713] [2020-10-27 03:59:00,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:59:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:00,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:00,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:01,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:01,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 03:59:01,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:01,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1170 [2020-10-27 03:59:01,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:01,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 66 [2020-10-27 03:59:01,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:59:01,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-27 03:59:01,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:01,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:59:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:01,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:01,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:01,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:59:01,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:01,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:59:01,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:01,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:59:01,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:01,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:59:01,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:01,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:59:01,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:01,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:01,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:02,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:02,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-27 03:59:02,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:02,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 723 [2020-10-27 03:59:02,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:02,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 65 [2020-10-27 03:59:02,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:02,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-27 03:59:02,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:02,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:02,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:02,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:02,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:03,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:03,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-27 03:59:03,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:03,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 647 [2020-10-27 03:59:03,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:03,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-27 03:59:03,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:03,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-27 03:59:03,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:03,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:03,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:03,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:03,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:03,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 03:59:03,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:03,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 484 [2020-10-27 03:59:03,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:03,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-27 03:59:03,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:03,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-27 03:59:03,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:03,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:03,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:04,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:04,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:04,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-27 03:59:04,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:04,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 419 [2020-10-27 03:59:04,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:04,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-27 03:59:04,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:04,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-27 03:59:04,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:04,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:04,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:04,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:04,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:04,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:04,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-27 03:59:04,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:04,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 356 [2020-10-27 03:59:04,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:04,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-27 03:59:04,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:04,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-27 03:59:04,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:04,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:04,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:04,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:04,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:05,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:05,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-27 03:59:05,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:05,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-10-27 03:59:05,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:05,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-27 03:59:05,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:05,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-27 03:59:05,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:05,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:05,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:05,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:05,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:05,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:05,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-27 03:59:05,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:05,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-27 03:59:05,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:05,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 03:59:05,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:05,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-27 03:59:05,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:05,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:05,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:05,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:05,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:05,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 03:59:05,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:05,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-10-27 03:59:05,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:05,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 03:59:05,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:05,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 03:59:05,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:05,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:05,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:06,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:06,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:06,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:06,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-27 03:59:06,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:06,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-27 03:59:06,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:06,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 03:59:06,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:06,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 03:59:06,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:06,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:06,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:06,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:06,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:06,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:06,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 03:59:06,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:06,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-27 03:59:06,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:06,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 03:59:06,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:06,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 03:59:06,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:06,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:06,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:06,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:06,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:06,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 03:59:06,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:06,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-27 03:59:06,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:06,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 03:59:06,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:06,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-27 03:59:06,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:06,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:06,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:06,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:06,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:06,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:06,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 03:59:06,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:06,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-27 03:59:06,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:06,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 03:59:06,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:06,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 03:59:06,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:06,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:06,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:06,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:06,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:07,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:07,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 03:59:07,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:07,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-27 03:59:07,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:07,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:59:07,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:07,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 03:59:07,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:07,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:07,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:07,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:07,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:07,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:07,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 03:59:07,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:07,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 03:59:07,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:07,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:59:07,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:07,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 03:59:07,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:07,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:07,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:07,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:07,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:07,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:59:07,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:07,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 03:59:07,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:07,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:59:07,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:07,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 03:59:07,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:07,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:07,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:07,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:07,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:07,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:59:07,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:07,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:59:07,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:07,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:59:07,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:07,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 03:59:07,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:07,868 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2020-10-27 03:59:07,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1250333713] [2020-10-27 03:59:07,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:59:07,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2020-10-27 03:59:07,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708827166] [2020-10-27 03:59:07,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-10-27 03:59:07,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:59:07,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-10-27 03:59:07,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1404, Unknown=0, NotChecked=0, Total=1482 [2020-10-27 03:59:07,870 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand 39 states. [2020-10-27 03:59:13,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:59:13,275 INFO L93 Difference]: Finished difference Result 167 states and 171 transitions. [2020-10-27 03:59:13,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-27 03:59:13,276 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 121 [2020-10-27 03:59:13,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:59:13,277 INFO L225 Difference]: With dead ends: 167 [2020-10-27 03:59:13,278 INFO L226 Difference]: Without dead ends: 162 [2020-10-27 03:59:13,279 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 28 SyntacticMatches, 4 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=297, Invalid=5105, Unknown=0, NotChecked=0, Total=5402 [2020-10-27 03:59:13,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-27 03:59:13,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 74. [2020-10-27 03:59:13,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-27 03:59:13,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 78 transitions. [2020-10-27 03:59:13,285 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 78 transitions. Word has length 121 [2020-10-27 03:59:13,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:59:13,285 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 78 transitions. [2020-10-27 03:59:13,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-10-27 03:59:13,285 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 78 transitions. [2020-10-27 03:59:13,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-27 03:59:13,286 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:59:13,286 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:59:13,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-27 03:59:13,288 INFO L429 AbstractCegarLoop]: === Iteration 32 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:59:13,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:59:13,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1580462721, now seen corresponding path program 7 times [2020-10-27 03:59:13,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:59:13,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1364982189] [2020-10-27 03:59:13,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:59:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:13,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:14,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:14,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-27 03:59:14,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:14,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1018 [2020-10-27 03:59:14,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:14,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 66 [2020-10-27 03:59:14,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:59:14,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-27 03:59:14,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:14,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:59:14,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:14,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:14,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:14,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:59:14,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:14,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:59:14,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:14,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:59:14,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:14,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:59:14,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:14,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:59:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:14,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:15,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:15,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 03:59:15,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:15,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 665 [2020-10-27 03:59:15,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:15,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 65 [2020-10-27 03:59:15,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:15,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-27 03:59:15,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:15,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:15,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:15,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:15,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-27 03:59:15,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:15,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 591 [2020-10-27 03:59:15,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:15,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-27 03:59:15,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:15,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-27 03:59:15,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:15,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:15,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:15,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:16,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:16,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 03:59:16,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:16,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 547 [2020-10-27 03:59:16,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:16,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-27 03:59:16,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:16,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-27 03:59:16,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:16,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:16,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:16,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:16,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-27 03:59:16,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:16,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 461 [2020-10-27 03:59:16,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:16,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-27 03:59:16,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:16,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-27 03:59:16,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:17,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:17,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:17,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:17,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-27 03:59:17,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:17,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 347 [2020-10-27 03:59:17,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:17,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-27 03:59:17,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:17,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-27 03:59:17,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:17,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:17,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:17,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:17,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-27 03:59:17,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:17,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-10-27 03:59:17,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:17,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-27 03:59:17,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:17,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-27 03:59:17,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:17,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:17,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:18,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:18,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 03:59:18,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:18,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-27 03:59:18,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:18,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 03:59:18,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:18,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-27 03:59:18,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:18,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:18,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:18,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:18,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:18,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-27 03:59:18,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:18,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-27 03:59:18,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:18,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 03:59:18,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:18,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-27 03:59:18,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:18,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:18,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:18,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:18,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:18,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 03:59:18,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:18,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-27 03:59:18,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:18,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 03:59:18,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:18,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 03:59:18,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:18,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:18,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:18,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:18,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:18,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-27 03:59:18,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:18,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-27 03:59:18,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:18,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 03:59:18,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:18,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 03:59:18,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:19,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:19,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:19,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:19,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:19,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-27 03:59:19,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:19,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-27 03:59:19,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:19,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 03:59:19,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:19,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 03:59:19,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:19,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:19,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:19,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:19,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:19,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 03:59:19,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:19,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-27 03:59:19,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:19,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 03:59:19,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:19,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-27 03:59:19,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:19,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:19,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:19,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:19,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 03:59:19,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:19,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 03:59:19,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:19,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:59:19,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:19,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 03:59:19,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:19,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:19,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:19,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:19,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 03:59:19,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:19,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 03:59:19,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:19,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:59:19,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:19,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 03:59:19,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:19,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:19,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:19,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:19,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:19,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 03:59:19,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:19,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 03:59:19,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:19,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:59:19,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:19,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 03:59:19,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:20,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:20,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:20,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:20,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:20,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 03:59:20,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:20,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:59:20,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:20,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:59:20,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:20,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 03:59:20,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:20,304 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 3 proven. 158 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-10-27 03:59:20,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1364982189] [2020-10-27 03:59:20,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:59:20,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-10-27 03:59:20,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980804810] [2020-10-27 03:59:20,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-27 03:59:20,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:59:20,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-27 03:59:20,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=1331, Unknown=0, NotChecked=0, Total=1406 [2020-10-27 03:59:20,306 INFO L87 Difference]: Start difference. First operand 74 states and 78 transitions. Second operand 38 states. [2020-10-27 03:59:25,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:59:25,868 INFO L93 Difference]: Finished difference Result 126 states and 130 transitions. [2020-10-27 03:59:25,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-27 03:59:25,869 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 122 [2020-10-27 03:59:25,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:59:25,870 INFO L225 Difference]: With dead ends: 126 [2020-10-27 03:59:25,870 INFO L226 Difference]: Without dead ends: 74 [2020-10-27 03:59:25,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 25 SyntacticMatches, 8 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=281, Invalid=4975, Unknown=0, NotChecked=0, Total=5256 [2020-10-27 03:59:25,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-27 03:59:25,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-27 03:59:25,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-27 03:59:25,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2020-10-27 03:59:25,875 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 122 [2020-10-27 03:59:25,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:59:25,876 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2020-10-27 03:59:25,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-10-27 03:59:25,876 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2020-10-27 03:59:25,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-27 03:59:25,877 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:59:25,877 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:59:25,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-27 03:59:25,877 INFO L429 AbstractCegarLoop]: === Iteration 33 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:59:25,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:59:25,877 INFO L82 PathProgramCache]: Analyzing trace with hash 933032968, now seen corresponding path program 8 times [2020-10-27 03:59:25,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:59:25,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1233852210] [2020-10-27 03:59:25,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:59:25,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:25,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:25,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:27,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:27,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-27 03:59:27,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:27,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1137 [2020-10-27 03:59:27,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:27,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 70 [2020-10-27 03:59:27,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:59:27,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-27 03:59:27,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:27,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:59:27,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:27,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:27,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:27,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:59:27,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:27,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:59:27,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:27,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:59:27,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:27,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:59:27,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:27,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:59:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:27,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:27,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:27,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:27,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 03:59:27,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:27,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 743 [2020-10-27 03:59:27,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:27,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 69 [2020-10-27 03:59:27,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:27,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-27 03:59:27,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:27,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:27,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:27,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:28,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:28,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:28,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-27 03:59:28,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:28,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 636 [2020-10-27 03:59:28,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:28,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 66 [2020-10-27 03:59:28,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:28,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-27 03:59:28,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:28,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:28,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:28,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:29,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:29,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-27 03:59:29,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:29,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 590 [2020-10-27 03:59:29,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:29,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-27 03:59:29,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:29,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-27 03:59:29,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:29,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:29,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:29,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:29,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:29,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 03:59:29,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:29,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 464 [2020-10-27 03:59:29,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:29,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-27 03:59:29,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:29,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-27 03:59:29,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:29,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:29,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:29,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:30,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:30,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-27 03:59:30,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:30,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 446 [2020-10-27 03:59:30,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:30,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-27 03:59:30,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:30,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-27 03:59:30,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:30,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:30,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:30,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:30,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:30,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-27 03:59:30,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:30,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 391 [2020-10-27 03:59:30,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:30,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-27 03:59:30,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:30,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-27 03:59:30,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:30,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:30,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:30,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:31,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:31,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-27 03:59:31,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:31,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-10-27 03:59:31,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:31,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-27 03:59:31,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:31,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-27 03:59:31,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:31,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:31,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:31,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:31,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:31,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-27 03:59:31,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:31,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-10-27 03:59:31,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:31,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 03:59:31,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:31,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-27 03:59:31,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:31,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:31,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:31,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:31,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:31,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:31,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 03:59:31,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:31,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-27 03:59:31,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:31,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 03:59:31,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:31,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 03:59:31,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:32,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:32,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:32,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:32,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:32,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:32,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-27 03:59:32,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:32,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-27 03:59:32,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:32,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 03:59:32,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:32,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 03:59:32,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:32,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:32,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:32,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:32,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:32,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:32,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 03:59:32,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:32,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-27 03:59:32,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:32,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 03:59:32,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:32,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 03:59:32,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:32,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:32,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:32,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:32,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:32,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 03:59:32,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:32,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-27 03:59:32,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:32,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 03:59:32,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:32,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-27 03:59:32,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:32,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:32,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:32,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:32,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:32,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 03:59:32,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:32,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-27 03:59:32,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:32,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 03:59:32,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:32,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 03:59:32,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:33,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:33,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:33,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:33,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:33,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:33,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 03:59:33,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:33,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-27 03:59:33,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:33,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:59:33,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:33,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 03:59:33,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:33,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:33,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:33,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:33,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:33,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:33,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 03:59:33,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:33,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 03:59:33,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:33,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:59:33,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:33,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 03:59:33,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:33,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:33,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:33,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:33,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:33,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:33,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:59:33,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:33,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 03:59:33,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:33,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:59:33,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:33,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 03:59:33,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:59:33,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:33,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:33,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:33,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:59:33,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:33,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:59:33,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:33,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:59:33,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:33,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 03:59:33,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:34,026 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 0 proven. 184 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2020-10-27 03:59:34,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1233852210] [2020-10-27 03:59:34,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:59:34,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2020-10-27 03:59:34,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523300519] [2020-10-27 03:59:34,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-10-27 03:59:34,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:59:34,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-10-27 03:59:34,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1483, Unknown=0, NotChecked=0, Total=1560 [2020-10-27 03:59:34,035 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand 40 states. [2020-10-27 03:59:40,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:59:40,080 INFO L93 Difference]: Finished difference Result 129 states and 132 transitions. [2020-10-27 03:59:40,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-27 03:59:40,081 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 128 [2020-10-27 03:59:40,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:59:40,083 INFO L225 Difference]: With dead ends: 129 [2020-10-27 03:59:40,083 INFO L226 Difference]: Without dead ends: 124 [2020-10-27 03:59:40,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 30 SyntacticMatches, 5 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=291, Invalid=5561, Unknown=0, NotChecked=0, Total=5852 [2020-10-27 03:59:40,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-27 03:59:40,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 77. [2020-10-27 03:59:40,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-27 03:59:40,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 80 transitions. [2020-10-27 03:59:40,091 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 80 transitions. Word has length 128 [2020-10-27 03:59:40,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:59:40,091 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 80 transitions. [2020-10-27 03:59:40,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-10-27 03:59:40,091 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 80 transitions. [2020-10-27 03:59:40,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-27 03:59:40,092 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:59:40,092 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:59:40,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-27 03:59:40,092 INFO L429 AbstractCegarLoop]: === Iteration 34 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:59:40,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:59:40,093 INFO L82 PathProgramCache]: Analyzing trace with hash -2100022578, now seen corresponding path program 8 times [2020-10-27 03:59:40,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:59:40,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [531617133] [2020-10-27 03:59:40,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:59:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:40,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:41,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:41,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-27 03:59:41,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:41,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1103 [2020-10-27 03:59:41,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:41,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 70 [2020-10-27 03:59:41,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:59:41,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-27 03:59:41,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:41,395 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 18 [2020-10-27 03:59:41,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:59:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:41,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:41,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:41,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:59:41,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:41,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:59:41,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:41,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:59:41,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:41,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:59:41,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:41,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:59:41,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:41,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:42,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:42,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-27 03:59:42,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:42,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 761 [2020-10-27 03:59:42,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:42,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 69 [2020-10-27 03:59:42,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:42,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-27 03:59:42,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:42,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:42,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:42,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:42,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:42,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 03:59:42,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:42,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 633 [2020-10-27 03:59:42,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:42,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 66 [2020-10-27 03:59:42,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:42,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-27 03:59:42,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:43,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:43,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:43,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:43,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-27 03:59:43,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:43,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 569 [2020-10-27 03:59:43,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:43,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-27 03:59:43,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:43,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-27 03:59:43,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:43,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:43,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:43,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:44,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:44,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 03:59:44,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:44,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 470 [2020-10-27 03:59:44,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:44,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-27 03:59:44,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:44,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-27 03:59:44,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:44,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:44,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:44,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:44,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-27 03:59:44,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:44,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 414 [2020-10-27 03:59:44,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:44,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-27 03:59:44,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:44,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-27 03:59:44,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:44,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:44,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:45,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:45,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-27 03:59:45,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:45,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 332 [2020-10-27 03:59:45,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:45,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-27 03:59:45,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:45,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-27 03:59:45,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:45,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:45,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:45,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:45,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-27 03:59:45,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:45,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 298 [2020-10-27 03:59:45,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:45,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-27 03:59:45,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:45,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-27 03:59:45,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:45,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:45,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:45,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:45,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 03:59:45,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:45,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-10-27 03:59:45,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:45,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 03:59:45,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:45,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-27 03:59:45,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:45,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:45,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:45,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:46,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:46,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-27 03:59:46,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:46,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-27 03:59:46,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:46,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 03:59:46,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:46,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-27 03:59:46,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:46,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:46,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:46,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:46,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 03:59:46,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:46,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-27 03:59:46,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:46,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 03:59:46,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:46,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 03:59:46,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:46,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:46,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:46,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:46,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:46,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-27 03:59:46,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:46,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-27 03:59:46,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:46,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 03:59:46,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:46,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 03:59:46,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:46,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:46,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:46,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:46,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-27 03:59:46,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:46,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-27 03:59:46,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:46,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 03:59:46,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:46,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 03:59:46,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:47,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:47,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:47,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:47,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:47,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 03:59:47,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:47,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-27 03:59:47,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:47,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 03:59:47,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:47,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-27 03:59:47,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:47,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:47,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:47,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:47,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 03:59:47,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:47,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-27 03:59:47,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:47,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:59:47,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:47,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 03:59:47,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:47,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:47,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:47,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:47,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:47,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 03:59:47,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:47,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 03:59:47,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:47,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:59:47,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:47,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 03:59:47,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:47,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:47,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:47,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:47,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 03:59:47,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:47,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 03:59:47,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:47,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:59:47,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:47,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 03:59:47,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:47,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:47,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:47,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:47,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 03:59:47,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:47,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:59:47,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:47,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 03:59:47,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:47,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 03:59:47,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:48,202 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 184 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2020-10-27 03:59:48,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [531617133] [2020-10-27 03:59:48,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 03:59:48,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2020-10-27 03:59:48,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163456537] [2020-10-27 03:59:48,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-10-27 03:59:48,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:59:48,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-10-27 03:59:48,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1483, Unknown=0, NotChecked=0, Total=1560 [2020-10-27 03:59:48,204 INFO L87 Difference]: Start difference. First operand 77 states and 80 transitions. Second operand 40 states. [2020-10-27 03:59:54,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:59:54,513 INFO L93 Difference]: Finished difference Result 132 states and 135 transitions. [2020-10-27 03:59:54,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-27 03:59:54,518 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 129 [2020-10-27 03:59:54,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:59:54,521 INFO L225 Difference]: With dead ends: 132 [2020-10-27 03:59:54,521 INFO L226 Difference]: Without dead ends: 127 [2020-10-27 03:59:54,522 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 27 SyntacticMatches, 8 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=291, Invalid=5561, Unknown=0, NotChecked=0, Total=5852 [2020-10-27 03:59:54,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-27 03:59:54,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 77. [2020-10-27 03:59:54,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-27 03:59:54,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 80 transitions. [2020-10-27 03:59:54,529 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 80 transitions. Word has length 129 [2020-10-27 03:59:54,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:59:54,529 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 80 transitions. [2020-10-27 03:59:54,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-10-27 03:59:54,530 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 80 transitions. [2020-10-27 03:59:54,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-27 03:59:54,530 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:59:54,531 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:59:54,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-27 03:59:54,531 INFO L429 AbstractCegarLoop]: === Iteration 35 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:59:54,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:59:54,531 INFO L82 PathProgramCache]: Analyzing trace with hash -815544263, now seen corresponding path program 8 times [2020-10-27 03:59:54,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:59:54,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1419489792] [2020-10-27 03:59:54,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:59:54,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:54,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:54,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:55,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:55,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-27 03:59:55,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:55,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1313 [2020-10-27 03:59:55,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:55,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 74 [2020-10-27 03:59:55,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 03:59:55,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-10-27 03:59:55,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:56,010 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 21 [2020-10-27 03:59:56,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:59:56,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:56,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:56,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:56,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:59:56,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:59:56,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:59:56,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:56,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:59:56,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:56,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:59:56,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:56,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 03:59:56,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:56,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:56,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:56,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:56,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-27 03:59:56,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:56,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 879 [2020-10-27 03:59:56,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:56,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 73 [2020-10-27 03:59:56,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:56,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-27 03:59:56,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:57,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:57,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:57,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:57,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:57,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:57,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 03:59:57,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:57,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 769 [2020-10-27 03:59:57,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:57,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 70 [2020-10-27 03:59:57,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:57,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-27 03:59:57,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:57,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:57,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:57,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:58,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:58,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-27 03:59:58,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:58,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 710 [2020-10-27 03:59:58,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:58,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 66 [2020-10-27 03:59:58,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:58,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-27 03:59:58,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:58,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:58,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:58,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:59,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:59,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-27 03:59:59,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:59,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 589 [2020-10-27 03:59:59,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:59,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-27 03:59:59,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:59,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-27 03:59:59,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:59:59,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 03:59:59,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:59:59,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:59,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:59:59,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:59:59,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 03:59:59,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:59:59,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 539 [2020-10-27 03:59:59,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:59:59,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-27 03:59:59,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:59:59,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-27 03:59:59,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:00,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:00,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:00,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:00,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:00,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-27 04:00:00,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:00,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 423 [2020-10-27 04:00:00,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:00,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-27 04:00:00,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:00,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-27 04:00:00,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:00,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:00,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:00,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:00,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:00,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:00,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-27 04:00:00,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:00,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-10-27 04:00:00,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:00,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-27 04:00:00,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:00,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-27 04:00:00,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:01,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:01,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:01,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:01,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:01,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:01,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-27 04:00:01,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:01,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 332 [2020-10-27 04:00:01,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:01,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-27 04:00:01,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:01,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-27 04:00:01,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:01,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:01,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:01,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:01,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:01,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:01,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-27 04:00:01,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:01,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-10-27 04:00:01,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:01,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 04:00:01,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:01,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-27 04:00:01,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:01,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:01,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:01,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:02,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:02,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:00:02,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:02,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-10-27 04:00:02,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:02,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 04:00:02,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:02,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:00:02,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:02,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:02,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:02,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:02,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:02,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:02,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-27 04:00:02,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:02,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-27 04:00:02,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:02,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 04:00:02,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:02,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 04:00:02,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:02,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:02,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:02,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:02,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:02,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 04:00:02,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:02,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-27 04:00:02,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:02,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 04:00:02,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:02,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 04:00:02,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:02,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:02,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:02,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:02,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:02,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:02,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 04:00:02,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:02,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-27 04:00:02,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:02,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 04:00:02,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:02,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-27 04:00:02,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:03,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:03,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:03,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:03,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:03,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 04:00:03,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:03,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-27 04:00:03,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:03,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 04:00:03,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:03,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 04:00:03,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:03,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:03,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:03,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:03,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:03,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 04:00:03,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:03,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 04:00:03,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:03,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 04:00:03,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:03,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 04:00:03,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:03,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:03,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:03,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:03,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:03,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:03,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 04:00:03,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:03,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 04:00:03,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:03,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 04:00:03,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:03,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 04:00:03,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:03,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:03,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:03,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:03,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:03,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:03,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 04:00:03,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:03,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 04:00:03,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:03,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 04:00:03,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:03,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 04:00:03,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:03,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:03,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:03,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:03,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:03,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:00:03,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:00:03,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:00:03,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:03,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:00:03,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:03,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:00:03,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:04,212 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 208 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2020-10-27 04:00:04,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1419489792] [2020-10-27 04:00:04,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:00:04,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2020-10-27 04:00:04,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188327607] [2020-10-27 04:00:04,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-10-27 04:00:04,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:00:04,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-10-27 04:00:04,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1641, Unknown=0, NotChecked=0, Total=1722 [2020-10-27 04:00:04,214 INFO L87 Difference]: Start difference. First operand 77 states and 80 transitions. Second operand 42 states. [2020-10-27 04:00:10,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:00:10,991 INFO L93 Difference]: Finished difference Result 185 states and 188 transitions. [2020-10-27 04:00:10,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-27 04:00:10,991 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 135 [2020-10-27 04:00:10,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:00:10,993 INFO L225 Difference]: With dead ends: 185 [2020-10-27 04:00:10,993 INFO L226 Difference]: Without dead ends: 180 [2020-10-27 04:00:10,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 33 SyntacticMatches, 4 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=307, Invalid=6173, Unknown=0, NotChecked=0, Total=6480 [2020-10-27 04:00:10,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-10-27 04:00:10,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 80. [2020-10-27 04:00:11,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-27 04:00:11,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2020-10-27 04:00:11,000 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 135 [2020-10-27 04:00:11,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:00:11,001 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2020-10-27 04:00:11,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-10-27 04:00:11,001 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2020-10-27 04:00:11,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-27 04:00:11,002 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:00:11,002 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:00:11,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-27 04:00:11,002 INFO L429 AbstractCegarLoop]: === Iteration 36 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:00:11,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:00:11,002 INFO L82 PathProgramCache]: Analyzing trace with hash 488610107, now seen corresponding path program 9 times [2020-10-27 04:00:11,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:00:11,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500737559] [2020-10-27 04:00:11,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:00:11,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:11,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:11,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:12,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:12,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-27 04:00:12,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:12,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1330 [2020-10-27 04:00:12,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:12,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 78 [2020-10-27 04:00:12,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 04:00:12,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-27 04:00:12,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:12,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:00:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:12,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:12,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:12,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:00:12,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:00:12,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:00:12,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:12,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:00:12,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:12,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:00:12,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:12,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 04:00:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:12,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:12,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:13,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:13,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-27 04:00:13,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:13,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 954 [2020-10-27 04:00:13,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:13,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 77 [2020-10-27 04:00:13,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:13,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-27 04:00:13,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:13,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:13,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:13,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:13,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:14,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:14,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-27 04:00:14,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:14,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 928 [2020-10-27 04:00:14,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:14,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 74 [2020-10-27 04:00:14,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:14,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-27 04:00:14,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:14,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:14,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:14,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:14,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:15,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:15,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 04:00:15,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:15,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 782 [2020-10-27 04:00:15,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:15,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 70 [2020-10-27 04:00:15,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:15,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-27 04:00:15,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:15,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:15,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:15,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:16,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:16,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-27 04:00:16,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:16,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 647 [2020-10-27 04:00:16,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:16,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 66 [2020-10-27 04:00:16,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:16,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-27 04:00:16,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:16,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:16,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:16,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:16,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:16,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-27 04:00:16,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:16,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 584 [2020-10-27 04:00:16,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:16,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-27 04:00:16,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:16,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-27 04:00:16,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:16,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:16,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:16,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:16,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:17,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:17,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 04:00:17,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:17,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 463 [2020-10-27 04:00:17,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:17,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-27 04:00:17,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:17,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-27 04:00:17,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:17,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:17,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:17,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:17,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:17,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-27 04:00:17,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:17,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 405 [2020-10-27 04:00:17,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:17,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-27 04:00:17,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:17,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-27 04:00:17,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:17,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:17,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:17,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:17,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:18,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:18,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-27 04:00:18,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:18,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-10-27 04:00:18,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:18,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-27 04:00:18,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:18,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-27 04:00:18,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:18,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:18,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:18,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:18,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:18,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-27 04:00:18,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:18,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-10-27 04:00:18,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:18,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-27 04:00:18,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:18,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-27 04:00:18,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:18,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:18,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:18,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:18,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:19,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:19,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-27 04:00:19,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:19,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-27 04:00:19,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:19,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 04:00:19,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:19,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-27 04:00:19,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:19,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:19,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:19,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:19,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:19,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:19,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 04:00:19,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:19,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-27 04:00:19,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:19,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 04:00:19,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:19,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 04:00:19,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:19,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:19,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:19,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:19,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:19,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-27 04:00:19,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:19,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-27 04:00:19,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:19,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 04:00:19,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:19,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 04:00:19,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:19,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:19,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:19,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:20,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:20,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 04:00:20,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:20,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-27 04:00:20,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:20,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 04:00:20,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:20,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 04:00:20,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:20,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:20,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:20,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:20,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:20,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:20,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 04:00:20,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:20,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-27 04:00:20,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:20,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 04:00:20,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:20,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-27 04:00:20,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:20,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:20,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:20,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:20,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:20,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:20,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 04:00:20,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:20,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-27 04:00:20,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:20,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 04:00:20,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:20,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 04:00:20,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:20,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:20,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:20,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:20,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:20,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 04:00:20,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:20,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-27 04:00:20,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:20,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 04:00:20,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:20,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 04:00:20,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:20,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:20,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:20,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:20,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:20,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:20,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 04:00:20,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:20,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 04:00:20,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:20,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 04:00:20,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:20,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 04:00:20,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:21,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:21,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:21,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:21,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:21,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 04:00:21,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:00:21,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 04:00:21,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:21,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 04:00:21,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:21,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 04:00:21,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:21,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:00:21,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:00:21,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:00:21,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:00:21,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:00:21,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:00:21,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:00:21,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:00:21,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:00:21,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:00:21,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:00:21,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:00:21,692 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 234 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2020-10-27 04:00:21,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [500737559] [2020-10-27 04:00:21,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:00:21,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2020-10-27 04:00:21,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972489569] [2020-10-27 04:00:21,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-10-27 04:00:21,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:00:21,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-10-27 04:00:21,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1807, Unknown=0, NotChecked=0, Total=1892 [2020-10-27 04:00:21,693 INFO L87 Difference]: Start difference. First operand 80 states and 83 transitions. Second operand 44 states.