/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block 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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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 -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:14:42,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:14:42,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:14:42,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:14:42,937 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:14:42,945 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:14:42,947 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:14:42,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:14:42,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:14:42,955 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:14:42,956 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:14:42,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:14:42,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:14:42,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:14:42,961 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:14:42,962 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:14:42,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:14:42,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:14:42,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:14:42,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:14:42,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:14:42,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:14:42,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:14:42,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:14:42,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:14:42,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:14:42,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:14:42,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:14:42,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:14:42,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:14:42,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:14:42,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:14:43,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:14:43,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:14:43,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:14:43,002 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:14:43,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:14:43,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:14:43,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:14:43,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:14:43,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:14:43,011 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 [2020-10-14 22:14:43,047 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:14:43,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:14:43,049 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:14:43,050 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:14:43,050 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:14:43,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:14:43,050 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:14:43,051 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:14:43,051 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:14:43,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:14:43,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:14:43,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:14:43,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:14:43,053 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:14:43,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:14:43,053 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:14:43,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:14:43,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:14:43,054 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:14:43,054 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:14:43,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:14:43,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:14:43,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:14:43,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:14:43,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:14:43,055 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:14:43,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:14:43,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:14:43,056 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:14:43,056 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> 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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 22:14:43,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:14:43,346 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:14:43,359 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:14:43,362 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:14:43,363 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:14:43,363 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label26.c [2020-10-14 22:14:43,436 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c71667478/e04e883b4c884f7b83139d4a13a3e5b3/FLAGde2aacade [2020-10-14 22:14:44,112 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:14:44,112 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label26.c [2020-10-14 22:14:44,129 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c71667478/e04e883b4c884f7b83139d4a13a3e5b3/FLAGde2aacade [2020-10-14 22:14:44,313 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c71667478/e04e883b4c884f7b83139d4a13a3e5b3 [2020-10-14 22:14:44,321 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:14:44,322 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:14:44,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:14:44,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:14:44,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:14:44,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:14:44" (1/1) ... [2020-10-14 22:14:44,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:14:44, skipping insertion in model container [2020-10-14 22:14:44,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:14:44" (1/1) ... [2020-10-14 22:14:44,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:14:44,412 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:14:45,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:14:45,179 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:14:45,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:14:45,451 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:14:45,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:14:45 WrapperNode [2020-10-14 22:14:45,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:14:45,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:14:45,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:14:45,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:14:45,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:14:45" (1/1) ... [2020-10-14 22:14:45,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:14:45" (1/1) ... [2020-10-14 22:14:45,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:14:45" (1/1) ... [2020-10-14 22:14:45,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:14:45" (1/1) ... [2020-10-14 22:14:45,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:14:45" (1/1) ... [2020-10-14 22:14:45,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:14:45" (1/1) ... [2020-10-14 22:14:45,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:14:45" (1/1) ... [2020-10-14 22:14:45,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:14:45,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:14:45,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:14:45,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:14:45,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:14:45" (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 [2020-10-14 22:14:45,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:14:45,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:14:45,739 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:14:45,740 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:14:45,740 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:14:45,740 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:14:45,740 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:14:45,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:14:45,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:14:45,741 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:14:45,741 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:14:45,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:14:45,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:14:47,888 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:14:47,888 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:14:47,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:14:47 BoogieIcfgContainer [2020-10-14 22:14:47,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:14:47,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:14:47,898 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:14:47,900 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:14:47,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:14:44" (1/3) ... [2020-10-14 22:14:47,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2042b32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:14:47, skipping insertion in model container [2020-10-14 22:14:47,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:14:45" (2/3) ... [2020-10-14 22:14:47,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2042b32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:14:47, skipping insertion in model container [2020-10-14 22:14:47,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:14:47" (3/3) ... [2020-10-14 22:14:47,904 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label26.c [2020-10-14 22:14:47,914 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:14:47,922 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:14:47,935 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:14:47,962 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:14:47,962 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:14:47,962 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:14:47,962 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:14:47,962 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:14:47,963 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:14:47,963 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:14:47,963 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:14:47,990 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 22:14:47,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-14 22:14:47,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:14:47,999 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:14:47,999 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:14:48,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:14:48,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1586905158, now seen corresponding path program 1 times [2020-10-14 22:14:48,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:14:48,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [798797369] [2020-10-14 22:14:48,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:14:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:48,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:48,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:48,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 22:14:48,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:48,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-10-14 22:14:48,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:48,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:48,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:14:48,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:14:48,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 22:14:48,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:14:48,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:14:48,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:48,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:48,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:48,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:14:48,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:48,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 22:14:48,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:48,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:48,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:14:48,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:48,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:14:48,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:14:48,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:14:48,708 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [798797369] [2020-10-14 22:14:48,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:14:48,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:14:48,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866808919] [2020-10-14 22:14:48,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:14:48,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:14:48,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:14:48,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:14:48,735 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 22:14:51,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:14:51,892 INFO L93 Difference]: Finished difference Result 1169 states and 2165 transitions. [2020-10-14 22:14:51,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:14:51,894 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-10-14 22:14:51,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:14:51,924 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 22:14:51,925 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 22:14:51,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:14:51,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 22:14:52,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 689. [2020-10-14 22:14:52,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-14 22:14:52,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1077 transitions. [2020-10-14 22:14:52,040 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1077 transitions. Word has length 41 [2020-10-14 22:14:52,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:14:52,041 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 1077 transitions. [2020-10-14 22:14:52,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:14:52,041 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1077 transitions. [2020-10-14 22:14:52,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-14 22:14:52,047 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:14:52,047 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:14:52,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:14:52,048 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:14:52,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:14:52,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1986652659, now seen corresponding path program 1 times [2020-10-14 22:14:52,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:14:52,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [524415358] [2020-10-14 22:14:52,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:14:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:52,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:52,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:52,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:52,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 22:14:52,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:14:52,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 862 [2020-10-14 22:14:52,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:52,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:52,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:14:52,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:14:52,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 22:14:52,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:14:53,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:14:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:53,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:53,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:53,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:14:53,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:53,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:14:53,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:53,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:53,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:14:53,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:53,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:14:53,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:14:53,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:14:53,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:53,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:53,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:53,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 22:14:53,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:53,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 22:14:53,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:53,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:53,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:14:53,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:14:53,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 22:14:53,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:14:53,215 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:14:53,216 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [524415358] [2020-10-14 22:14:53,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:14:53,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:14:53,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937002535] [2020-10-14 22:14:53,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:14:53,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:14:53,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:14:53,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:14:53,220 INFO L87 Difference]: Start difference. First operand 689 states and 1077 transitions. Second operand 7 states. [2020-10-14 22:14:56,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:14:56,524 INFO L93 Difference]: Finished difference Result 1739 states and 2662 transitions. [2020-10-14 22:14:56,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:14:56,525 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 116 [2020-10-14 22:14:56,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:14:56,533 INFO L225 Difference]: With dead ends: 1739 [2020-10-14 22:14:56,533 INFO L226 Difference]: Without dead ends: 1056 [2020-10-14 22:14:56,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:14:56,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2020-10-14 22:14:56,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 1041. [2020-10-14 22:14:56,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1041 states. [2020-10-14 22:14:56,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1494 transitions. [2020-10-14 22:14:56,587 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1494 transitions. Word has length 116 [2020-10-14 22:14:56,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:14:56,588 INFO L479 AbstractCegarLoop]: Abstraction has 1041 states and 1494 transitions. [2020-10-14 22:14:56,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:14:56,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1494 transitions. [2020-10-14 22:14:56,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-14 22:14:56,592 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:14:56,593 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:14:56,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:14:56,593 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:14:56,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:14:56,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1073516582, now seen corresponding path program 1 times [2020-10-14 22:14:56,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:14:56,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [192537390] [2020-10-14 22:14:56,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:14:56,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:56,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:56,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:57,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:57,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 22:14:57,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:14:57,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1054 [2020-10-14 22:14:57,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:57,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:57,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:14:57,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:14:57,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 22:14:57,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:14:57,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:14:57,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:57,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:57,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:57,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:14:57,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:57,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:14:57,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:57,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:57,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:14:57,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:14:57,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:14:57,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:14:57,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:14:57,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:14:57,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:14:57,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:14:57,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:14:57,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:14:57,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-14 22:14:57,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:14:57,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:14:57,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:14:57,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:14:57,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 22:14:57,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:14:57,986 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:14:57,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [192537390] [2020-10-14 22:14:57,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:14:57,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 22:14:57,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829246175] [2020-10-14 22:14:57,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:14:57,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:14:57,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:14:57,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:14:57,991 INFO L87 Difference]: Start difference. First operand 1041 states and 1494 transitions. Second operand 8 states. [2020-10-14 22:15:03,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:15:03,362 INFO L93 Difference]: Finished difference Result 4201 states and 6219 transitions. [2020-10-14 22:15:03,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:15:03,368 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 117 [2020-10-14 22:15:03,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:15:03,394 INFO L225 Difference]: With dead ends: 4201 [2020-10-14 22:15:03,394 INFO L226 Difference]: Without dead ends: 3166 [2020-10-14 22:15:03,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-14 22:15:03,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3166 states. [2020-10-14 22:15:03,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3166 to 3141. [2020-10-14 22:15:03,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3141 states. [2020-10-14 22:15:03,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3141 states to 3141 states and 4235 transitions. [2020-10-14 22:15:03,519 INFO L78 Accepts]: Start accepts. Automaton has 3141 states and 4235 transitions. Word has length 117 [2020-10-14 22:15:03,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:15:03,521 INFO L479 AbstractCegarLoop]: Abstraction has 3141 states and 4235 transitions. [2020-10-14 22:15:03,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:15:03,521 INFO L276 IsEmpty]: Start isEmpty. Operand 3141 states and 4235 transitions. [2020-10-14 22:15:03,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-10-14 22:15:03,532 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:15:03,533 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:15:03,536 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:15:03,537 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:15:03,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:15:03,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1552853449, now seen corresponding path program 1 times [2020-10-14 22:15:03,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:15:03,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [304964934] [2020-10-14 22:15:03,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:15:03,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:03,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:03,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:03,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:04,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:04,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:05,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:06,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:06,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:15:06,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 22:15:06,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3223 [2020-10-14 22:15:06,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:06,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:06,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:15:06,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:15:06,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-14 22:15:06,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:15:06,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:15:06,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:06,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:06,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:06,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:15:06,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:06,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:15:06,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:06,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:06,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:15:06,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:06,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:15:06,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:15:06,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:15:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:06,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:06,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:07,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:07,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:15:07,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:15:07,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-14 22:15:07,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:07,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:07,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:15:07,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:07,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:15:07,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:07,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:15:07,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:07,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:07,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:07,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:15:07,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:07,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 22:15:07,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:07,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:07,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:15:07,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:15:07,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 22:15:07,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:15:07,280 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 22:15:07,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [304964934] [2020-10-14 22:15:07,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:15:07,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:15:07,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981729843] [2020-10-14 22:15:07,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:15:07,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:15:07,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:15:07,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:15:07,285 INFO L87 Difference]: Start difference. First operand 3141 states and 4235 transitions. Second operand 7 states. [2020-10-14 22:15:10,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:15:10,954 INFO L93 Difference]: Finished difference Result 7365 states and 10364 transitions. [2020-10-14 22:15:10,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:15:10,955 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 204 [2020-10-14 22:15:10,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:15:10,978 INFO L225 Difference]: With dead ends: 7365 [2020-10-14 22:15:10,978 INFO L226 Difference]: Without dead ends: 4230 [2020-10-14 22:15:10,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:15:10,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4230 states. [2020-10-14 22:15:11,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4230 to 3826. [2020-10-14 22:15:11,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3826 states. [2020-10-14 22:15:11,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3826 states to 3826 states and 5177 transitions. [2020-10-14 22:15:11,092 INFO L78 Accepts]: Start accepts. Automaton has 3826 states and 5177 transitions. Word has length 204 [2020-10-14 22:15:11,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:15:11,093 INFO L479 AbstractCegarLoop]: Abstraction has 3826 states and 5177 transitions. [2020-10-14 22:15:11,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:15:11,093 INFO L276 IsEmpty]: Start isEmpty. Operand 3826 states and 5177 transitions. [2020-10-14 22:15:11,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2020-10-14 22:15:11,101 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:15:11,102 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:15:11,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:15:11,102 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:15:11,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:15:11,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1059094091, now seen corresponding path program 1 times [2020-10-14 22:15:11,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:15:11,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1284973352] [2020-10-14 22:15:11,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:15:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:11,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:11,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:11,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:12,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:12,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:14,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:14,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 396 [2020-10-14 22:15:14,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:15:14,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3398 [2020-10-14 22:15:14,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:14,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:14,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:15:14,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 22:15:14,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 22:15:14,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:14,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:15:14,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:14,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:14,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:14,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:15:14,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:14,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:15:14,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:14,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:14,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:14,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:14,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:14,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:14,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:15:14,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:14,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:14,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:14,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:15:14,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:14,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:15:14,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:14,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:14,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:15:14,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:14,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:15:14,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:14,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:15:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:14,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:14,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:15,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:15,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:15:15,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:15:15,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-10-14 22:15:15,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:15,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:15,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:15:15,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:15:15,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 22:15:15,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:15:15,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-14 22:15:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:15,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:15,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:15,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:15:15,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:15,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-14 22:15:15,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:15,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:15,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:15:15,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:15:15,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:15:15,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:15:15,953 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 278 proven. 6 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-14 22:15:15,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1284973352] [2020-10-14 22:15:15,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:15:15,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:15:15,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847375664] [2020-10-14 22:15:15,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:15:15,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:15:15,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:15:15,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:15:15,956 INFO L87 Difference]: Start difference. First operand 3826 states and 5177 transitions. Second operand 8 states. [2020-10-14 22:15:21,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:15:21,250 INFO L93 Difference]: Finished difference Result 10095 states and 13942 transitions. [2020-10-14 22:15:21,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 22:15:21,251 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 382 [2020-10-14 22:15:21,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:15:21,274 INFO L225 Difference]: With dead ends: 10095 [2020-10-14 22:15:21,274 INFO L226 Difference]: Without dead ends: 5197 [2020-10-14 22:15:21,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-14 22:15:21,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5197 states. [2020-10-14 22:15:21,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5197 to 4832. [2020-10-14 22:15:21,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4832 states. [2020-10-14 22:15:21,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4832 states to 4832 states and 5334 transitions. [2020-10-14 22:15:21,393 INFO L78 Accepts]: Start accepts. Automaton has 4832 states and 5334 transitions. Word has length 382 [2020-10-14 22:15:21,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:15:21,393 INFO L479 AbstractCegarLoop]: Abstraction has 4832 states and 5334 transitions. [2020-10-14 22:15:21,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:15:21,393 INFO L276 IsEmpty]: Start isEmpty. Operand 4832 states and 5334 transitions. [2020-10-14 22:15:21,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2020-10-14 22:15:21,410 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:15:21,410 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:15:21,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:15:21,411 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:15:21,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:15:21,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1086514194, now seen corresponding path program 1 times [2020-10-14 22:15:21,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:15:21,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1454300829] [2020-10-14 22:15:21,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:15:21,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:21,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:21,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:21,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:21,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:26,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:26,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 585 [2020-10-14 22:15:26,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:15:26,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 22:15:26,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:26,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:26,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:15:26,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:15:26,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 22:15:26,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:26,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:15:26,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:26,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:26,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:26,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:15:26,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:26,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:15:26,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:26,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:26,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:26,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:26,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:26,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:15:26,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:15:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:26,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:26,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:26,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:15:26,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:26,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 22:15:26,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:26,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:26,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:15:26,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:26,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 22:15:26,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:15:26,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 22:15:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:26,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:26,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:26,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:15:26,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:26,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-10-14 22:15:26,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:26,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:26,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:15:26,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:15:26,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:15:26,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:15:27,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-14 22:15:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:27,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:27,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:27,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:15:27,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:27,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 22:15:27,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:27,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:27,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:27,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:15:27,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:27,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 22:15:27,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 22:15:27,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:27,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:27,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:27,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:15:27,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:27,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 22:15:27,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:27,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:27,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:27,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:15:27,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:27,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:15:27,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-14 22:15:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:27,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:27,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:27,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:15:27,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:27,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:15:27,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:27,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:27,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:27,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 22:15:27,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:27,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:15:27,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1093 backedges. 279 proven. 290 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2020-10-14 22:15:27,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1454300829] [2020-10-14 22:15:27,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:15:27,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:15:27,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778195104] [2020-10-14 22:15:27,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:15:27,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:15:27,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:15:27,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:15:27,870 INFO L87 Difference]: Start difference. First operand 4832 states and 5334 transitions. Second operand 7 states. [2020-10-14 22:15:30,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:15:30,710 INFO L93 Difference]: Finished difference Result 9691 states and 10718 transitions. [2020-10-14 22:15:30,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:15:30,710 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 567 [2020-10-14 22:15:30,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:15:30,728 INFO L225 Difference]: With dead ends: 9691 [2020-10-14 22:15:30,728 INFO L226 Difference]: Without dead ends: 4865 [2020-10-14 22:15:30,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:15:30,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4865 states. [2020-10-14 22:15:30,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4865 to 4502. [2020-10-14 22:15:30,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4502 states. [2020-10-14 22:15:30,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4502 states to 4502 states and 4821 transitions. [2020-10-14 22:15:30,820 INFO L78 Accepts]: Start accepts. Automaton has 4502 states and 4821 transitions. Word has length 567 [2020-10-14 22:15:30,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:15:30,821 INFO L479 AbstractCegarLoop]: Abstraction has 4502 states and 4821 transitions. [2020-10-14 22:15:30,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:15:30,821 INFO L276 IsEmpty]: Start isEmpty. Operand 4502 states and 4821 transitions. [2020-10-14 22:15:30,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686 [2020-10-14 22:15:30,844 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:15:30,845 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:15:30,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:15:30,845 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:15:30,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:15:30,846 INFO L82 PathProgramCache]: Analyzing trace with hash 168622554, now seen corresponding path program 1 times [2020-10-14 22:15:30,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:15:30,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [138794742] [2020-10-14 22:15:30,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:15:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:31,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:31,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:31,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:31,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:35,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:35,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:35,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 703 [2020-10-14 22:15:35,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:15:35,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-14 22:15:35,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:35,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:35,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:15:35,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:15:35,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 22:15:35,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:15:36,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:15:36,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:36,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:36,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:36,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:15:36,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:36,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:15:36,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:36,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:36,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:15:36,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:36,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:15:36,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:15:36,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:15:36,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:36,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:36,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:36,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:15:36,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:36,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 371 [2020-10-14 22:15:36,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:36,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:36,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:15:36,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:15:36,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:15:36,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:15:36,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 22:15:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:36,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:36,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:36,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:15:36,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:36,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:15:36,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:36,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:36,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:36,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:15:36,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:36,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:36,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 22:15:36,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:36,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:36,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:36,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:15:36,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:36,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 22:15:36,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:36,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:36,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:36,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 22:15:36,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:36,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:36,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:15:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:37,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:37,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:37,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:15:37,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:37,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:15:37,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:37,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:37,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:37,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:15:37,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:37,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:37,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 580 [2020-10-14 22:15:37,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:37,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:37,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:37,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:15:37,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:37,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:15:37,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:37,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:37,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:37,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 22:15:37,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:37,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:37,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1026 backedges. 170 proven. 375 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2020-10-14 22:15:37,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [138794742] [2020-10-14 22:15:37,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:15:37,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:15:37,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080679692] [2020-10-14 22:15:37,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:15:37,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:15:37,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:15:37,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:15:37,511 INFO L87 Difference]: Start difference. First operand 4502 states and 4821 transitions. Second operand 7 states. [2020-10-14 22:15:39,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:15:39,889 INFO L93 Difference]: Finished difference Result 9719 states and 10401 transitions. [2020-10-14 22:15:39,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:15:39,890 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 685 [2020-10-14 22:15:39,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:15:39,909 INFO L225 Difference]: With dead ends: 9719 [2020-10-14 22:15:39,909 INFO L226 Difference]: Without dead ends: 5223 [2020-10-14 22:15:39,920 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:15:39,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5223 states. [2020-10-14 22:15:40,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5223 to 5183. [2020-10-14 22:15:40,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5183 states. [2020-10-14 22:15:40,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5183 states to 5183 states and 5529 transitions. [2020-10-14 22:15:40,015 INFO L78 Accepts]: Start accepts. Automaton has 5183 states and 5529 transitions. Word has length 685 [2020-10-14 22:15:40,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:15:40,016 INFO L479 AbstractCegarLoop]: Abstraction has 5183 states and 5529 transitions. [2020-10-14 22:15:40,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:15:40,016 INFO L276 IsEmpty]: Start isEmpty. Operand 5183 states and 5529 transitions. [2020-10-14 22:15:40,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 770 [2020-10-14 22:15:40,031 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:15:40,032 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:15:40,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:15:40,033 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:15:40,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:15:40,033 INFO L82 PathProgramCache]: Analyzing trace with hash -69141142, now seen corresponding path program 1 times [2020-10-14 22:15:40,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:15:40,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1778887653] [2020-10-14 22:15:40,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:15:40,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:40,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:40,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:40,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:43,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:43,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:45,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:45,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 787 [2020-10-14 22:15:45,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:15:45,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 22:15:45,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:45,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:45,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:15:45,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-14 22:15:45,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 22:15:45,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:45,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:15:45,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:45,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:45,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:45,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:15:45,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:45,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:15:45,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:45,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:45,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:45,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:45,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:45,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:45,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:15:45,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:45,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:45,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:45,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:15:45,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:45,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 22:15:45,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:45,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:45,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:15:45,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:45,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 22:15:45,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:45,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:15:45,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:45,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:45,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:45,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:15:45,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:45,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 22:15:45,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:45,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:45,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:15:45,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:15:45,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-14 22:15:45,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:45,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-14 22:15:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:45,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:45,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:45,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:15:45,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:45,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:15:45,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:45,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:45,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:45,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 22:15:45,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:45,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:45,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2020-10-14 22:15:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:45,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:45,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:45,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:15:45,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:45,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:15:45,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:45,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:45,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:45,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:15:45,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:45,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:45,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 664 [2020-10-14 22:15:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:45,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:45,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:45,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:15:45,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:45,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 22:15:45,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:45,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:45,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:45,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 22:15:45,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:45,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:46,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1239 backedges. 342 proven. 319 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2020-10-14 22:15:46,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1778887653] [2020-10-14 22:15:46,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:15:46,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:15:46,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935141218] [2020-10-14 22:15:46,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:15:46,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:15:46,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:15:46,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:15:46,098 INFO L87 Difference]: Start difference. First operand 5183 states and 5529 transitions. Second operand 7 states. [2020-10-14 22:15:48,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:15:48,811 INFO L93 Difference]: Finished difference Result 11746 states and 12695 transitions. [2020-10-14 22:15:48,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:15:48,811 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 769 [2020-10-14 22:15:48,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:15:48,833 INFO L225 Difference]: With dead ends: 11746 [2020-10-14 22:15:48,834 INFO L226 Difference]: Without dead ends: 6906 [2020-10-14 22:15:48,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:15:48,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6906 states. [2020-10-14 22:15:48,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6906 to 6549. [2020-10-14 22:15:48,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6549 states. [2020-10-14 22:15:48,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6549 states to 6549 states and 6957 transitions. [2020-10-14 22:15:48,972 INFO L78 Accepts]: Start accepts. Automaton has 6549 states and 6957 transitions. Word has length 769 [2020-10-14 22:15:48,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:15:48,973 INFO L479 AbstractCegarLoop]: Abstraction has 6549 states and 6957 transitions. [2020-10-14 22:15:48,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:15:48,973 INFO L276 IsEmpty]: Start isEmpty. Operand 6549 states and 6957 transitions. [2020-10-14 22:15:48,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1006 [2020-10-14 22:15:48,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:15:48,996 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:15:48,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:15:48,997 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:15:48,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:15:48,998 INFO L82 PathProgramCache]: Analyzing trace with hash 183084442, now seen corresponding path program 1 times [2020-10-14 22:15:48,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:15:48,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [255801146] [2020-10-14 22:15:48,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:15:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:49,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:49,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:49,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:50,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:54,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:54,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1021 [2020-10-14 22:15:54,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:15:54,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-14 22:15:54,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:54,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:54,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:15:54,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:15:54,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-14 22:15:54,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:54,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:15:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:54,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:54,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:54,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:15:54,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:54,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:15:54,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:54,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:54,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:15:54,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:54,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:15:54,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:54,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:15:54,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:54,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:54,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:54,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:54,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:15:54,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:15:54,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-14 22:15:54,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:54,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:54,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:15:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:15:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-14 22:15:54,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:54,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:15:54,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:54,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:55,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:55,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:15:55,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:55,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-14 22:15:55,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:55,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:55,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:15:55,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:15:55,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:15:55,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:55,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-14 22:15:55,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:55,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:55,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:55,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:15:55,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:55,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:15:55,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:55,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:55,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:55,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-14 22:15:55,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:55,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:55,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 699 [2020-10-14 22:15:55,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:55,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:55,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:15:55,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:15:55,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:15:55,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 22:15:55,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:15:55,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:15:55,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:15:55,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:15:55,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:15:55,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:15:56,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1464 backedges. 385 proven. 440 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2020-10-14 22:15:56,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [255801146] [2020-10-14 22:15:56,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:15:56,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:15:56,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836674450] [2020-10-14 22:15:56,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:15:56,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:15:56,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:15:56,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:15:56,207 INFO L87 Difference]: Start difference. First operand 6549 states and 6957 transitions. Second operand 7 states. [2020-10-14 22:15:58,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:15:58,576 INFO L93 Difference]: Finished difference Result 13116 states and 13943 transitions. [2020-10-14 22:15:58,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:15:58,577 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1005 [2020-10-14 22:15:58,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:15:58,596 INFO L225 Difference]: With dead ends: 13116 [2020-10-14 22:15:58,597 INFO L226 Difference]: Without dead ends: 6912 [2020-10-14 22:15:58,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:15:58,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6912 states. [2020-10-14 22:15:58,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6912 to 6888. [2020-10-14 22:15:58,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6888 states. [2020-10-14 22:15:58,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6888 states to 6888 states and 7303 transitions. [2020-10-14 22:15:58,712 INFO L78 Accepts]: Start accepts. Automaton has 6888 states and 7303 transitions. Word has length 1005 [2020-10-14 22:15:58,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:15:58,713 INFO L479 AbstractCegarLoop]: Abstraction has 6888 states and 7303 transitions. [2020-10-14 22:15:58,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:15:58,713 INFO L276 IsEmpty]: Start isEmpty. Operand 6888 states and 7303 transitions. [2020-10-14 22:15:58,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1040 [2020-10-14 22:15:58,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:15:58,735 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:15:58,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:15:58,735 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:15:58,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:15:58,736 INFO L82 PathProgramCache]: Analyzing trace with hash -348235134, now seen corresponding path program 1 times [2020-10-14 22:15:58,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:15:58,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [269962154] [2020-10-14 22:15:58,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:15:58,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:15:59,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:59,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:15:59,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:03,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:04,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:04,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1057 [2020-10-14 22:16:04,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:16:04,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5097 [2020-10-14 22:16:04,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:04,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:04,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:04,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 741 [2020-10-14 22:16:04,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:16:04,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:04,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:16:04,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:04,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:04,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:04,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:16:04,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:04,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:16:04,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:04,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:04,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:04,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:04,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:04,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:04,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:16:04,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:04,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:04,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:04,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:16:04,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:04,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:16:04,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:04,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:04,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:04,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:04,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:04,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:04,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:16:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:04,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:04,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:04,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:16:04,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:04,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:16:04,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:04,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:04,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:04,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:04,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:04,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:04,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:16:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:04,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:04,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:04,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:16:04,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:04,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:16:04,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:04,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:04,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:04,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:04,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:04,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:04,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:16:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:04,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:04,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:04,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:16:04,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:04,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-14 22:16:04,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:04,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:04,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:04,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:04,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 22:16:04,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:04,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-14 22:16:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:04,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:05,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:05,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:16:05,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:05,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 484 [2020-10-14 22:16:05,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:05,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:05,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:05,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:16:05,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:16:05,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:06,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1801 backedges. 898 proven. 2 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2020-10-14 22:16:06,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [269962154] [2020-10-14 22:16:06,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:16:06,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:16:06,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158121993] [2020-10-14 22:16:06,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:16:06,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:16:06,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:16:06,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:16:06,937 INFO L87 Difference]: Start difference. First operand 6888 states and 7303 transitions. Second operand 7 states. [2020-10-14 22:16:09,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:16:09,681 INFO L93 Difference]: Finished difference Result 13447 states and 14278 transitions. [2020-10-14 22:16:09,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:16:09,682 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1039 [2020-10-14 22:16:09,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:16:09,700 INFO L225 Difference]: With dead ends: 13447 [2020-10-14 22:16:09,700 INFO L226 Difference]: Without dead ends: 6904 [2020-10-14 22:16:09,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:16:09,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6904 states. [2020-10-14 22:16:09,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6904 to 6888. [2020-10-14 22:16:09,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6888 states. [2020-10-14 22:16:09,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6888 states to 6888 states and 7299 transitions. [2020-10-14 22:16:09,808 INFO L78 Accepts]: Start accepts. Automaton has 6888 states and 7299 transitions. Word has length 1039 [2020-10-14 22:16:09,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:16:09,809 INFO L479 AbstractCegarLoop]: Abstraction has 6888 states and 7299 transitions. [2020-10-14 22:16:09,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:16:09,810 INFO L276 IsEmpty]: Start isEmpty. Operand 6888 states and 7299 transitions. [2020-10-14 22:16:09,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1109 [2020-10-14 22:16:09,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:16:09,830 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:16:09,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:16:09,831 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:16:09,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:16:09,832 INFO L82 PathProgramCache]: Analyzing trace with hash -514266989, now seen corresponding path program 1 times [2020-10-14 22:16:09,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:16:09,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1248104163] [2020-10-14 22:16:09,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:16:09,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:10,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:10,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:10,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:12,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:15,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:15,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1132 [2020-10-14 22:16:15,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:16:15,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5066 [2020-10-14 22:16:15,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:15,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:15,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:15,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-14 22:16:15,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-14 22:16:15,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:15,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:16:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:15,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:15,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:15,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:16:15,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:15,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:16:15,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:15,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:15,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:15,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:15,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:15,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:15,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:16:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:15,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:15,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:15,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:16:15,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:15,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-14 22:16:15,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:15,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:15,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:15,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:15,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 22:16:15,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:15,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:16:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:15,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:15,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:15,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:16:15,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:15,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 22:16:15,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:15,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:15,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:15,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:16:15,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 22:16:15,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:15,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:16:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:15,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:15,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:15,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:16:15,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:15,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 22:16:15,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:15,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:15,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:15,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-14 22:16:15,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:15,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:15,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:16:15,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:15,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:15,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:15,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:16:15,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:15,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:16:15,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:15,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:15,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:15,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:16:15,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:15,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:15,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-14 22:16:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:15,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:15,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:15,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:16:15,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:15,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:16:15,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:15,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:15,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:15,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 22:16:15,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:15,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:15,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-14 22:16:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:15,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:16,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:16,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:16:16,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:16,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 22:16:16,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:16,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:16,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:16,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:16:16,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:16,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:16,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2020-10-14 22:16:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:16,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:16,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:16,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:16:16,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:16,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:16:16,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:16,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:16,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:16,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:16:16,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:16,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:16,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-14 22:16:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:16,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:16,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:16,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:16:16,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:16,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:16:16,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:16,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:16,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:16,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 22:16:16,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:16,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:17,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3129 backedges. 455 proven. 650 refuted. 0 times theorem prover too weak. 2024 trivial. 0 not checked. [2020-10-14 22:16:17,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1248104163] [2020-10-14 22:16:17,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:16:17,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:16:17,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402647424] [2020-10-14 22:16:17,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:16:17,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:16:17,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:16:17,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:16:17,123 INFO L87 Difference]: Start difference. First operand 6888 states and 7299 transitions. Second operand 8 states. [2020-10-14 22:16:21,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:16:21,272 INFO L93 Difference]: Finished difference Result 16521 states and 17740 transitions. [2020-10-14 22:16:21,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 22:16:21,273 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1108 [2020-10-14 22:16:21,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:16:21,297 INFO L225 Difference]: With dead ends: 16521 [2020-10-14 22:16:21,297 INFO L226 Difference]: Without dead ends: 9978 [2020-10-14 22:16:21,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2020-10-14 22:16:21,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9978 states. [2020-10-14 22:16:21,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9978 to 9625. [2020-10-14 22:16:21,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9625 states. [2020-10-14 22:16:21,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9625 states to 9625 states and 10214 transitions. [2020-10-14 22:16:21,461 INFO L78 Accepts]: Start accepts. Automaton has 9625 states and 10214 transitions. Word has length 1108 [2020-10-14 22:16:21,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:16:21,462 INFO L479 AbstractCegarLoop]: Abstraction has 9625 states and 10214 transitions. [2020-10-14 22:16:21,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:16:21,462 INFO L276 IsEmpty]: Start isEmpty. Operand 9625 states and 10214 transitions. [2020-10-14 22:16:21,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1289 [2020-10-14 22:16:21,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:16:21,494 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:16:21,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:16:21,495 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:16:21,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:16:21,496 INFO L82 PathProgramCache]: Analyzing trace with hash 102502963, now seen corresponding path program 1 times [2020-10-14 22:16:21,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:16:21,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1203139041] [2020-10-14 22:16:21,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:16:21,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:21,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:22,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:22,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:26,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:26,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1312 [2020-10-14 22:16:26,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:16:26,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5095 [2020-10-14 22:16:26,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:26,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:26,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:26,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 676 [2020-10-14 22:16:26,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 22:16:26,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:26,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:16:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:26,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:26,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:26,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:16:26,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:26,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:16:26,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:26,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:26,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:26,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:26,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:26,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:26,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:16:26,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:26,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:26,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:26,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:16:26,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:26,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:16:26,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:26,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:26,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:26,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:26,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:26,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:27,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:16:27,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:27,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:27,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:27,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:16:27,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:27,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 22:16:27,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:27,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:27,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:27,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:27,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:27,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:27,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:16:27,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:27,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:27,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:27,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:16:27,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:27,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:16:27,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:27,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:27,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:27,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:27,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:27,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:27,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:16:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:27,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:27,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:27,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:16:27,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:27,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:16:27,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:27,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:27,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:27,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:27,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 22:16:27,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:27,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-14 22:16:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:27,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:27,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:27,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:16:27,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:27,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 22:16:27,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:27,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:27,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:27,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:16:27,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 22:16:27,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:27,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 812 [2020-10-14 22:16:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:27,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:27,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:27,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:16:27,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:27,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:16:27,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:27,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:27,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:27,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:16:27,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:27,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:27,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 954 [2020-10-14 22:16:27,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:27,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:27,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:27,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 22:16:27,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:27,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 22:16:27,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:27,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:27,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:27,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 301 [2020-10-14 22:16:27,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:27,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:27,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:16:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:27,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:27,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:27,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 22:16:27,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:27,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:16:27,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:27,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:27,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:27,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:27,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:27,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:28,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2982 backedges. 759 proven. 282 refuted. 0 times theorem prover too weak. 1941 trivial. 0 not checked. [2020-10-14 22:16:28,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1203139041] [2020-10-14 22:16:28,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:16:28,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:16:28,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440446250] [2020-10-14 22:16:28,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:16:28,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:16:28,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:16:28,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:16:28,379 INFO L87 Difference]: Start difference. First operand 9625 states and 10214 transitions. Second operand 7 states. [2020-10-14 22:16:31,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:16:31,482 INFO L93 Difference]: Finished difference Result 22990 states and 24643 transitions. [2020-10-14 22:16:31,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:16:31,484 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1288 [2020-10-14 22:16:31,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:16:31,529 INFO L225 Difference]: With dead ends: 22990 [2020-10-14 22:16:31,529 INFO L226 Difference]: Without dead ends: 13710 [2020-10-14 22:16:31,547 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:16:31,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13710 states. [2020-10-14 22:16:31,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13710 to 13363. [2020-10-14 22:16:31,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13363 states. [2020-10-14 22:16:31,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 14218 transitions. [2020-10-14 22:16:31,793 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 14218 transitions. Word has length 1288 [2020-10-14 22:16:31,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:16:31,795 INFO L479 AbstractCegarLoop]: Abstraction has 13363 states and 14218 transitions. [2020-10-14 22:16:31,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:16:31,795 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 14218 transitions. [2020-10-14 22:16:31,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1374 [2020-10-14 22:16:31,845 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:16:31,846 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:16:31,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:16:31,847 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:16:31,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:16:31,848 INFO L82 PathProgramCache]: Analyzing trace with hash 427803626, now seen corresponding path program 1 times [2020-10-14 22:16:31,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:16:31,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1044527216] [2020-10-14 22:16:31,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:16:32,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:32,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:32,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:33,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:33,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:37,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:37,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1397 [2020-10-14 22:16:37,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:16:37,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-14 22:16:37,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:37,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:37,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:16:37,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 823 [2020-10-14 22:16:37,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 420 [2020-10-14 22:16:37,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:37,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:16:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:37,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:37,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:37,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:16:37,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:37,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:16:37,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:37,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:37,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:37,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:37,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:37,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:37,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:16:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:37,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:37,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:37,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:16:37,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:37,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:16:37,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:37,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:37,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:37,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:37,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:37,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:37,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:16:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:37,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:37,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:37,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:16:37,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:37,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:16:37,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:37,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:37,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:37,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:37,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:37,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:37,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:16:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:37,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:37,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:37,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:16:37,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:37,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 22:16:37,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:37,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:37,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:37,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:37,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:37,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:37,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:16:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:37,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:37,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:37,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:16:37,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:37,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 22:16:37,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:37,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:37,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:37,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:37,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:37,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:37,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-14 22:16:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:37,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:37,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:37,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:16:37,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:37,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 22:16:37,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:37,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:37,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:37,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:37,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 22:16:37,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:37,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 813 [2020-10-14 22:16:37,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:37,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:37,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:37,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:16:37,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:37,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 22:16:37,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:37,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:37,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:37,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:16:37,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 22:16:37,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:37,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 955 [2020-10-14 22:16:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:37,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:38,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:38,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:16:38,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:38,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-14 22:16:38,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:38,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:38,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:38,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:16:38,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:16:38,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:38,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1228 [2020-10-14 22:16:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:38,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:38,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:38,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:16:38,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:38,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:16:38,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:38,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:38,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:38,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:16:38,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:38,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:40,357 INFO L134 CoverageAnalysis]: Checked inductivity of 3764 backedges. 1724 proven. 357 refuted. 0 times theorem prover too weak. 1683 trivial. 0 not checked. [2020-10-14 22:16:40,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1044527216] [2020-10-14 22:16:40,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:16:40,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:16:40,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440665929] [2020-10-14 22:16:40,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:16:40,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:16:40,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:16:40,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:16:40,359 INFO L87 Difference]: Start difference. First operand 13363 states and 14218 transitions. Second operand 8 states. [2020-10-14 22:16:44,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:16:44,378 INFO L93 Difference]: Finished difference Result 27418 states and 29166 transitions. [2020-10-14 22:16:44,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 22:16:44,380 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1373 [2020-10-14 22:16:44,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:16:44,413 INFO L225 Difference]: With dead ends: 27418 [2020-10-14 22:16:44,414 INFO L226 Difference]: Without dead ends: 14400 [2020-10-14 22:16:44,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-14 22:16:44,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14400 states. [2020-10-14 22:16:44,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14400 to 14390. [2020-10-14 22:16:44,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14390 states. [2020-10-14 22:16:44,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14390 states to 14390 states and 15272 transitions. [2020-10-14 22:16:44,632 INFO L78 Accepts]: Start accepts. Automaton has 14390 states and 15272 transitions. Word has length 1373 [2020-10-14 22:16:44,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:16:44,634 INFO L479 AbstractCegarLoop]: Abstraction has 14390 states and 15272 transitions. [2020-10-14 22:16:44,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:16:44,634 INFO L276 IsEmpty]: Start isEmpty. Operand 14390 states and 15272 transitions. [2020-10-14 22:16:44,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1453 [2020-10-14 22:16:44,672 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:16:44,673 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-10-14 22:16:44,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 22:16:44,674 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:16:44,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:16:44,675 INFO L82 PathProgramCache]: Analyzing trace with hash -9336889, now seen corresponding path program 1 times [2020-10-14 22:16:44,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:16:44,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855032216] [2020-10-14 22:16:44,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:16:44,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:44,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:45,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:45,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:47,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:49,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:49,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1476 [2020-10-14 22:16:49,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:16:49,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-10-14 22:16:49,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:49,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:49,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:49,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 794 [2020-10-14 22:16:49,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 22:16:49,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:50,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:16:50,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:50,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:50,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:50,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:16:50,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:50,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:16:50,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:50,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:50,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:50,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:50,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:50,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:50,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:16:50,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:50,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:50,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:50,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:16:50,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:50,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:16:50,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:50,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:50,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:50,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:50,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:50,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:50,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:16:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:50,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:50,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:50,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:16:50,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:50,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:16:50,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:50,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:50,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:50,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:50,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:50,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:50,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:16:50,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:50,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:50,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:50,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:16:50,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:50,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:16:50,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:50,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:50,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:50,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:50,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:50,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:50,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:16:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:50,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:50,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:50,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:16:50,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:50,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:16:50,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:50,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:50,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:50,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:50,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:50,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:50,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-14 22:16:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:50,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:50,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:50,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:16:50,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:50,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:16:50,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:50,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:50,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:50,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:50,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:16:50,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:50,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 22:16:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:50,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:50,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:50,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:16:50,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:50,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-10-14 22:16:50,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:50,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:50,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:50,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:16:50,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 22:16:50,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:50,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1034 [2020-10-14 22:16:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:50,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:51,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:51,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:16:51,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:51,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 22:16:51,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:51,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:51,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:51,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:16:51,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:51,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:51,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1307 [2020-10-14 22:16:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:51,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:51,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:51,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:16:51,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:51,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:16:51,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:51,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:51,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:51,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:16:51,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:51,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:52,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3922 backedges. 1093 proven. 358 refuted. 0 times theorem prover too weak. 2471 trivial. 0 not checked. [2020-10-14 22:16:52,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855032216] [2020-10-14 22:16:52,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:16:52,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:16:52,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971978102] [2020-10-14 22:16:52,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:16:52,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:16:52,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:16:52,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:16:52,296 INFO L87 Difference]: Start difference. First operand 14390 states and 15272 transitions. Second operand 8 states. [2020-10-14 22:16:56,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:16:56,601 INFO L93 Difference]: Finished difference Result 30130 states and 31969 transitions. [2020-10-14 22:16:56,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:16:56,603 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1452 [2020-10-14 22:16:56,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:16:56,639 INFO L225 Difference]: With dead ends: 30130 [2020-10-14 22:16:56,640 INFO L226 Difference]: Without dead ends: 16426 [2020-10-14 22:16:56,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:16:56,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16426 states. [2020-10-14 22:16:56,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16426 to 16420. [2020-10-14 22:16:56,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16420 states. [2020-10-14 22:16:56,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16420 states to 16420 states and 17374 transitions. [2020-10-14 22:16:56,872 INFO L78 Accepts]: Start accepts. Automaton has 16420 states and 17374 transitions. Word has length 1452 [2020-10-14 22:16:56,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:16:56,873 INFO L479 AbstractCegarLoop]: Abstraction has 16420 states and 17374 transitions. [2020-10-14 22:16:56,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:16:56,874 INFO L276 IsEmpty]: Start isEmpty. Operand 16420 states and 17374 transitions. [2020-10-14 22:16:56,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1491 [2020-10-14 22:16:56,922 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:16:56,923 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:16:56,923 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 22:16:56,923 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:16:56,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:16:56,924 INFO L82 PathProgramCache]: Analyzing trace with hash 376719579, now seen corresponding path program 1 times [2020-10-14 22:16:56,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:16:56,924 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1430329291] [2020-10-14 22:16:56,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:16:57,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:57,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:57,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:57,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:59,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:59,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:01,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:02,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:02,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1514 [2020-10-14 22:17:02,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 22:17:02,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5083 [2020-10-14 22:17:02,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:02,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:02,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:17:02,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 940 [2020-10-14 22:17:02,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 420 [2020-10-14 22:17:02,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:02,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:02,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:02,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:02,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:02,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:02,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:17:02,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:02,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:02,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:02,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:02,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:02,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:02,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:02,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:02,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:02,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:02,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:17:02,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:02,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:17:02,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:02,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:02,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:02,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:02,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:02,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:02,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:17:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:02,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:02,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:02,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:17:02,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:02,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:17:02,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:02,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:02,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:02,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:02,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:02,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:02,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:17:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:02,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:02,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:02,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:17:02,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:02,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:17:02,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:02,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:02,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:02,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:02,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:02,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:02,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:17:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:02,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:02,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:02,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:17:02,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:02,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:17:02,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:02,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:02,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:02,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:02,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:02,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:02,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-14 22:17:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:02,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:02,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:02,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:17:02,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:02,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 22:17:02,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:02,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:02,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:02,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:02,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-14 22:17:02,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:02,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 930 [2020-10-14 22:17:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:02,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:02,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:03,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:03,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:17:03,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:17:03,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-14 22:17:03,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:03,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:03,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:03,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:03,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 22:17:03,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:03,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1072 [2020-10-14 22:17:03,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:03,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:03,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:03,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:17:03,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:03,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-10-14 22:17:03,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:03,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:03,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:03,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:03,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:17:03,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:03,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1345 [2020-10-14 22:17:03,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:03,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:03,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:03,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:17:03,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:03,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:17:03,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:03,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:03,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:03,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:17:03,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:03,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:04,636 INFO L134 CoverageAnalysis]: Checked inductivity of 4049 backedges. 1840 proven. 222 refuted. 0 times theorem prover too weak. 1987 trivial. 0 not checked. [2020-10-14 22:17:04,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1430329291] [2020-10-14 22:17:04,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:04,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:17:04,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274371629] [2020-10-14 22:17:04,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:17:04,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:04,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:17:04,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:17:04,639 INFO L87 Difference]: Start difference. First operand 16420 states and 17374 transitions. Second operand 8 states. [2020-10-14 22:17:08,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:08,977 INFO L93 Difference]: Finished difference Result 35881 states and 38055 transitions. [2020-10-14 22:17:08,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 22:17:08,979 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1490 [2020-10-14 22:17:08,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:09,024 INFO L225 Difference]: With dead ends: 35881 [2020-10-14 22:17:09,024 INFO L226 Difference]: Without dead ends: 20147 [2020-10-14 22:17:09,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-14 22:17:09,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20147 states. [2020-10-14 22:17:09,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20147 to 19463. [2020-10-14 22:17:09,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19463 states. [2020-10-14 22:17:09,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19463 states to 19463 states and 20568 transitions. [2020-10-14 22:17:09,338 INFO L78 Accepts]: Start accepts. Automaton has 19463 states and 20568 transitions. Word has length 1490 [2020-10-14 22:17:09,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:09,340 INFO L479 AbstractCegarLoop]: Abstraction has 19463 states and 20568 transitions. [2020-10-14 22:17:09,340 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:17:09,340 INFO L276 IsEmpty]: Start isEmpty. Operand 19463 states and 20568 transitions. [2020-10-14 22:17:09,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1616 [2020-10-14 22:17:09,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:09,426 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:17:09,426 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 22:17:09,426 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:09,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:09,427 INFO L82 PathProgramCache]: Analyzing trace with hash 383889402, now seen corresponding path program 1 times [2020-10-14 22:17:09,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:09,428 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1175458248] [2020-10-14 22:17:09,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:09,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:09,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:10,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:10,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:13,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:14,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:14,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1643 [2020-10-14 22:17:14,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:17:14,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-14 22:17:14,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:14,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:14,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:17:14,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1122 [2020-10-14 22:17:14,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 306 [2020-10-14 22:17:14,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:15,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:15,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:15,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:15,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:15,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:15,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:17:15,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:15,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:15,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:15,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:15,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:15,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:15,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:15,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:15,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:15,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:17:15,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:15,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:17:15,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:15,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:15,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:15,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:15,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:15,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:15,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:17:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:15,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:15,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:15,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:17:15,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:15,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:17:15,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:15,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:15,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:15,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:15,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:15,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:15,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:17:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:15,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:15,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:15,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:17:15,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:15,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 22:17:15,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:15,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:15,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:15,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:15,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:15,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:15,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:17:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:15,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:15,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:15,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:17:15,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:15,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:17:15,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:15,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:15,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:15,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:15,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:15,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:15,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-14 22:17:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:15,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:15,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:15,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:17:15,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:15,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:17:15,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:15,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:15,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:15,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:15,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:15,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:15,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 22:17:15,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:15,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:15,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:15,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 22:17:15,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:15,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-14 22:17:15,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:15,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:15,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:15,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:15,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 321 [2020-10-14 22:17:15,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:15,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:17:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:15,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:15,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:15,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 22:17:15,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:15,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:17:15,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:15,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:15,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:15,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:15,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 22:17:15,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:15,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1111 [2020-10-14 22:17:15,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:15,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:15,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:15,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 22:17:15,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:15,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-10-14 22:17:15,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:15,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:15,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:17:15,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:15,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 304 [2020-10-14 22:17:15,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:16,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:17:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:16,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:16,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:16,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 22:17:16,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:16,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:17:16,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:16,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:16,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:17:16,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:16,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:17:16,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:16,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1412 [2020-10-14 22:17:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:16,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:16,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:16,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-14 22:17:16,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:16,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:17:16,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:16,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:16,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:16,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-14 22:17:16,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:16,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:17,374 INFO L134 CoverageAnalysis]: Checked inductivity of 4225 backedges. 1376 proven. 172 refuted. 0 times theorem prover too weak. 2677 trivial. 0 not checked. [2020-10-14 22:17:17,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1175458248] [2020-10-14 22:17:17,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:17,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:17:17,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825692427] [2020-10-14 22:17:17,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:17:17,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:17,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:17:17,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:17:17,377 INFO L87 Difference]: Start difference. First operand 19463 states and 20568 transitions. Second operand 8 states. [2020-10-14 22:17:20,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:20,092 INFO L93 Difference]: Finished difference Result 40957 states and 43459 transitions. [2020-10-14 22:17:20,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:17:20,093 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1615 [2020-10-14 22:17:20,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:20,126 INFO L225 Difference]: With dead ends: 40957 [2020-10-14 22:17:20,126 INFO L226 Difference]: Without dead ends: 22180 [2020-10-14 22:17:20,147 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-14 22:17:20,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22180 states. [2020-10-14 22:17:20,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22180 to 20818. [2020-10-14 22:17:20,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20818 states. [2020-10-14 22:17:20,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20818 states to 20818 states and 22075 transitions. [2020-10-14 22:17:20,428 INFO L78 Accepts]: Start accepts. Automaton has 20818 states and 22075 transitions. Word has length 1615 [2020-10-14 22:17:20,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:20,429 INFO L479 AbstractCegarLoop]: Abstraction has 20818 states and 22075 transitions. [2020-10-14 22:17:20,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:17:20,429 INFO L276 IsEmpty]: Start isEmpty. Operand 20818 states and 22075 transitions. [2020-10-14 22:17:20,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1661 [2020-10-14 22:17:20,471 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:20,472 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:17:20,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 22:17:20,472 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:20,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:20,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1034901229, now seen corresponding path program 1 times [2020-10-14 22:17:20,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:20,474 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1021841411] [2020-10-14 22:17:20,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:20,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:20,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:21,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:21,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:21,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:25,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:25,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1688 [2020-10-14 22:17:25,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:17:25,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 22:17:25,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:25,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:25,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:25,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 677 [2020-10-14 22:17:25,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 22:17:25,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:25,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:25,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:25,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:25,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:25,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:25,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:17:25,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:25,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:25,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:25,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:25,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:25,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:25,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:25,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:25,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:25,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:17:25,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:25,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:17:25,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:25,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:25,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:25,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:25,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:25,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:25,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:17:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:25,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:26,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:26,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:17:26,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:26,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 22:17:26,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:26,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:26,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:26,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:26,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:26,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:26,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:17:26,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:26,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:26,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:26,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:17:26,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:26,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:17:26,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:26,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:26,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:26,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:26,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:26,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:26,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:17:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:26,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:26,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:26,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:17:26,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:26,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:17:26,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:26,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:26,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:26,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:26,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 22:17:26,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:26,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-14 22:17:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:26,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:26,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:26,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:17:26,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:26,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 22:17:26,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:26,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:26,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:26,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:26,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 22:17:26,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:26,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 813 [2020-10-14 22:17:26,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:26,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:26,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:26,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:17:26,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:26,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 22:17:26,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:26,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:26,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:26,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:17:26,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:26,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:26,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 955 [2020-10-14 22:17:26,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:26,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:26,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:26,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:17:26,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:26,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 22:17:26,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:26,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:26,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:26,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:17:26,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:26,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:26,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1065 [2020-10-14 22:17:26,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:26,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:26,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:26,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 22:17:26,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:26,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 22:17:26,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:26,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:26,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:26,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-14 22:17:26,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:26,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:26,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1203 [2020-10-14 22:17:26,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:26,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:26,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:26,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 22:17:26,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:26,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 22:17:26,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:26,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:26,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:26,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 22:17:26,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:26,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:26,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1457 [2020-10-14 22:17:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:26,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:26,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:26,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-14 22:17:26,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:26,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:17:26,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:26,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:26,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:26,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-14 22:17:26,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:26,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:28,006 INFO L134 CoverageAnalysis]: Checked inductivity of 6062 backedges. 910 proven. 665 refuted. 0 times theorem prover too weak. 4487 trivial. 0 not checked. [2020-10-14 22:17:28,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1021841411] [2020-10-14 22:17:28,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:28,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:17:28,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942540284] [2020-10-14 22:17:28,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:17:28,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:28,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:17:28,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:17:28,008 INFO L87 Difference]: Start difference. First operand 20818 states and 22075 transitions. Second operand 7 states. [2020-10-14 22:17:31,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:31,117 INFO L93 Difference]: Finished difference Result 42312 states and 44928 transitions. [2020-10-14 22:17:31,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:17:31,118 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1660 [2020-10-14 22:17:31,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:31,161 INFO L225 Difference]: With dead ends: 42312 [2020-10-14 22:17:31,161 INFO L226 Difference]: Without dead ends: 22180 [2020-10-14 22:17:31,191 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:17:31,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22180 states. [2020-10-14 22:17:31,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22180 to 21159. [2020-10-14 22:17:31,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21159 states. [2020-10-14 22:17:31,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21159 states to 21159 states and 22185 transitions. [2020-10-14 22:17:31,481 INFO L78 Accepts]: Start accepts. Automaton has 21159 states and 22185 transitions. Word has length 1660 [2020-10-14 22:17:31,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:31,482 INFO L479 AbstractCegarLoop]: Abstraction has 21159 states and 22185 transitions. [2020-10-14 22:17:31,482 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:17:31,482 INFO L276 IsEmpty]: Start isEmpty. Operand 21159 states and 22185 transitions. [2020-10-14 22:17:31,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1662 [2020-10-14 22:17:31,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:31,517 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:17:31,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 22:17:31,517 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:31,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:31,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1875241230, now seen corresponding path program 1 times [2020-10-14 22:17:31,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:31,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [252897660] [2020-10-14 22:17:31,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:31,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:31,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:35,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:35,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:36,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:36,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:36,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1689 [2020-10-14 22:17:36,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:17:36,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-14 22:17:36,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:36,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:36,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:36,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1476 [2020-10-14 22:17:36,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-14 22:17:36,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:36,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:36,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:36,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:36,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:36,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:36,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:17:36,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:36,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:36,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:36,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:36,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:36,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:36,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:36,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:36,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:36,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:36,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:17:36,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:36,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:17:36,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:36,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:36,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:36,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:36,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:36,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:37,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:17:37,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:37,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:37,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:37,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:17:37,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:37,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:17:37,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:37,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:37,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:37,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:17:37,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:37,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:37,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:37,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:17:37,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:37,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 22:17:37,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:37,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:37,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:37,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:37,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:37,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:37,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:17:37,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:37,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:37,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:37,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:17:37,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:37,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:17:37,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:37,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:37,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:37,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:37,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:37,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:37,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-14 22:17:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:37,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:37,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:37,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:17:37,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:37,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:17:37,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:37,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:37,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:37,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:37,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:37,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:37,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 22:17:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:37,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:37,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:37,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 22:17:37,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:37,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 22:17:37,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:37,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:37,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:37,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:37,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:37,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:37,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:17:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:37,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:37,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:37,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 22:17:37,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:37,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 22:17:37,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:37,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:37,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:37,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:37,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:37,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:37,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1111 [2020-10-14 22:17:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:37,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:37,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:37,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:17:37,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:37,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 22:17:37,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:37,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:37,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:37,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:37,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:37,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:37,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1185 [2020-10-14 22:17:37,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:37,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:37,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:37,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:17:37,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:37,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-14 22:17:37,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:37,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:37,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:37,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:37,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-14 22:17:37,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:37,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1458 [2020-10-14 22:17:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:37,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:37,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:37,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-14 22:17:37,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:37,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-14 22:17:37,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:37,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:37,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:37,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:37,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-14 22:17:37,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:38,972 INFO L134 CoverageAnalysis]: Checked inductivity of 4819 backedges. 1385 proven. 2 refuted. 0 times theorem prover too weak. 3432 trivial. 0 not checked. [2020-10-14 22:17:38,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [252897660] [2020-10-14 22:17:38,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:38,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:17:38,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325140192] [2020-10-14 22:17:38,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:17:38,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:38,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:17:38,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:17:38,977 INFO L87 Difference]: Start difference. First operand 21159 states and 22185 transitions. Second operand 7 states. [2020-10-14 22:17:42,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:42,073 INFO L93 Difference]: Finished difference Result 43693 states and 45921 transitions. [2020-10-14 22:17:42,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:17:42,074 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1661 [2020-10-14 22:17:42,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:42,111 INFO L225 Difference]: With dead ends: 43693 [2020-10-14 22:17:42,111 INFO L226 Difference]: Without dead ends: 21161 [2020-10-14 22:17:42,134 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:17:42,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21161 states. [2020-10-14 22:17:42,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21161 to 20794. [2020-10-14 22:17:42,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20794 states. [2020-10-14 22:17:42,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20794 states to 20794 states and 21551 transitions. [2020-10-14 22:17:42,386 INFO L78 Accepts]: Start accepts. Automaton has 20794 states and 21551 transitions. Word has length 1661 [2020-10-14 22:17:42,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:42,388 INFO L479 AbstractCegarLoop]: Abstraction has 20794 states and 21551 transitions. [2020-10-14 22:17:42,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:17:42,388 INFO L276 IsEmpty]: Start isEmpty. Operand 20794 states and 21551 transitions. [2020-10-14 22:17:42,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1733 [2020-10-14 22:17:42,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:42,427 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:17:42,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 22:17:42,428 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:42,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:42,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1541641681, now seen corresponding path program 1 times [2020-10-14 22:17:42,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:42,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1394731800] [2020-10-14 22:17:42,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:42,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:42,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:42,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:46,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:46,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:47,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:47,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:47,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1760 [2020-10-14 22:17:47,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:17:47,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5151 [2020-10-14 22:17:47,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:47,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:47,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 22:17:47,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 794 [2020-10-14 22:17:47,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 965 [2020-10-14 22:17:47,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:48,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:48,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:48,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:48,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:48,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:48,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:48,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:17:48,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:48,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:48,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:48,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:48,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:48,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:48,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:48,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:48,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:48,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:17:48,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:48,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:17:48,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:48,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:48,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:48,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:48,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:48,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:48,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:17:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:48,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:48,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:48,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:17:48,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:48,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:17:48,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:48,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:48,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:48,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:48,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:48,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:48,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:17:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:48,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:48,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:48,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:17:48,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:48,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:17:48,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:48,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:48,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:48,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:48,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:48,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:48,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:17:48,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:48,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:48,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:48,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:17:48,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:48,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:17:48,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:48,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:48,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:48,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:48,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:48,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:48,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-14 22:17:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:48,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:48,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:48,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:17:48,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:48,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 22:17:48,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:48,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:48,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:48,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:48,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:17:48,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:48,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 22:17:48,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:48,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:48,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:48,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:48,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 22:17:48,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:17:48,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 447 [2020-10-14 22:17:48,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:48,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:48,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:48,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:48,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 321 [2020-10-14 22:17:48,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:49,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:17:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:49,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:49,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:49,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 22:17:49,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:49,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:17:49,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:49,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:49,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:49,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:49,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 22:17:49,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:49,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1111 [2020-10-14 22:17:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:49,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:49,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:49,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:49,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:17:49,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:17:49,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 22:17:49,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:49,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:49,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:49,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:49,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 22:17:49,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:49,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1185 [2020-10-14 22:17:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:49,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:49,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:49,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:49,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:17:49,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:17:49,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 343 [2020-10-14 22:17:49,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:49,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:49,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:49,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:49,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-14 22:17:49,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:49,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1458 [2020-10-14 22:17:49,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:49,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:49,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:49,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:49,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-14 22:17:49,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:17:49,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-10-14 22:17:49,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:49,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:49,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:49,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:49,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 236 [2020-10-14 22:17:49,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:51,277 INFO L134 CoverageAnalysis]: Checked inductivity of 5083 backedges. 405 proven. 9 refuted. 0 times theorem prover too weak. 4669 trivial. 0 not checked. [2020-10-14 22:17:51,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1394731800] [2020-10-14 22:17:51,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:51,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:17:51,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275862773] [2020-10-14 22:17:51,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:17:51,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:51,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:17:51,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:17:51,280 INFO L87 Difference]: Start difference. First operand 20794 states and 21551 transitions. Second operand 5 states. [2020-10-14 22:17:53,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:53,660 INFO L93 Difference]: Finished difference Result 40906 states and 42416 transitions. [2020-10-14 22:17:53,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:17:53,661 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1732 [2020-10-14 22:17:53,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:53,686 INFO L225 Difference]: With dead ends: 40906 [2020-10-14 22:17:53,686 INFO L226 Difference]: Without dead ends: 20798 [2020-10-14 22:17:53,699 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:17:53,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20798 states. [2020-10-14 22:17:53,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20798 to 20790. [2020-10-14 22:17:53,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20790 states. [2020-10-14 22:17:53,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20790 states to 20790 states and 21496 transitions. [2020-10-14 22:17:53,869 INFO L78 Accepts]: Start accepts. Automaton has 20790 states and 21496 transitions. Word has length 1732 [2020-10-14 22:17:53,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:53,870 INFO L479 AbstractCegarLoop]: Abstraction has 20790 states and 21496 transitions. [2020-10-14 22:17:53,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:17:53,870 INFO L276 IsEmpty]: Start isEmpty. Operand 20790 states and 21496 transitions. [2020-10-14 22:17:53,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2142 [2020-10-14 22:17:53,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:53,913 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:17:53,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 22:17:53,914 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:53,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:53,914 INFO L82 PathProgramCache]: Analyzing trace with hash 201152398, now seen corresponding path program 1 times [2020-10-14 22:17:53,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:53,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1832506954] [2020-10-14 22:17:53,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:54,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:54,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:54,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:59,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:59,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2173 [2020-10-14 22:17:59,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:17:59,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5120 [2020-10-14 22:17:59,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:59,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:59,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:59,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 677 [2020-10-14 22:17:59,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 22:17:59,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:59,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:59,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:59,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:59,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:59,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:59,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:59,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:17:59,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:59,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:59,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:59,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:59,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:59,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:59,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:59,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:59,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:59,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:17:59,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:59,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 22:17:59,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:59,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:59,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:59,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:59,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:59,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:59,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:17:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:59,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:59,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:59,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:17:59,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:59,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 22:17:59,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:59,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:59,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:59,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:59,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:59,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:59,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:17:59,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:59,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:59,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:59,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:17:59,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:59,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:17:59,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:59,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:59,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:59,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:59,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:59,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:59,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:17:59,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:59,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:59,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:59,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:17:59,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:59,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:17:59,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:59,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:59,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:59,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:59,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 22:17:59,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:59,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-14 22:17:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:59,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:59,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:59,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:17:59,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:59,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 22:17:59,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:59,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:59,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:59,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:59,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:17:59,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:00,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 22:18:00,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:00,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:00,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:00,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 22:18:00,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:00,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 22:18:00,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:00,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:00,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:00,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 22:18:00,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:00,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:00,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:18:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:00,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:00,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:00,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 22:18:00,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:00,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 22:18:00,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:00,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:00,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:00,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:00,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:00,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:00,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1111 [2020-10-14 22:18:00,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:00,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:00,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:00,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:18:00,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:00,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 22:18:00,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:00,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:00,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:00,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 22:18:00,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:00,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:00,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1185 [2020-10-14 22:18:00,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:00,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:00,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:00,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:18:00,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:00,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 22:18:00,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:00,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:00,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:00,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:18:00,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:00,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:00,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1458 [2020-10-14 22:18:00,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:00,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:00,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:00,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-14 22:18:00,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:00,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 22:18:00,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:00,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:00,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:00,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 263 [2020-10-14 22:18:00,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:00,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:00,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1723 [2020-10-14 22:18:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:00,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:01,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:01,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:18:01,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:01,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-14 22:18:01,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:01,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:01,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:01,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:18:01,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:01,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:01,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1938 [2020-10-14 22:18:01,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:01,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:01,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:01,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-14 22:18:01,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:01,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 22:18:01,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:01,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:01,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:01,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-14 22:18:01,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:01,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:02,942 INFO L134 CoverageAnalysis]: Checked inductivity of 8070 backedges. 888 proven. 633 refuted. 0 times theorem prover too weak. 6549 trivial. 0 not checked. [2020-10-14 22:18:02,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1832506954] [2020-10-14 22:18:02,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:02,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:18:02,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268772038] [2020-10-14 22:18:02,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:18:02,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:02,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:18:02,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:18:02,945 INFO L87 Difference]: Start difference. First operand 20790 states and 21496 transitions. Second operand 7 states. [2020-10-14 22:18:07,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:07,330 INFO L93 Difference]: Finished difference Result 42930 states and 44427 transitions. [2020-10-14 22:18:07,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:18:07,331 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2141 [2020-10-14 22:18:07,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:07,370 INFO L225 Difference]: With dead ends: 42930 [2020-10-14 22:18:07,371 INFO L226 Difference]: Without dead ends: 22826 [2020-10-14 22:18:07,396 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:18:07,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22826 states. [2020-10-14 22:18:07,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22826 to 22146. [2020-10-14 22:18:07,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22146 states. [2020-10-14 22:18:07,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22146 states to 22146 states and 22840 transitions. [2020-10-14 22:18:07,655 INFO L78 Accepts]: Start accepts. Automaton has 22146 states and 22840 transitions. Word has length 2141 [2020-10-14 22:18:07,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:07,656 INFO L479 AbstractCegarLoop]: Abstraction has 22146 states and 22840 transitions. [2020-10-14 22:18:07,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:18:07,656 INFO L276 IsEmpty]: Start isEmpty. Operand 22146 states and 22840 transitions. [2020-10-14 22:18:07,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2165 [2020-10-14 22:18:07,717 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:07,719 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:18:07,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 22:18:07,719 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:07,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:07,720 INFO L82 PathProgramCache]: Analyzing trace with hash -151581901, now seen corresponding path program 1 times [2020-10-14 22:18:07,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:07,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153496578] [2020-10-14 22:18:07,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:07,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:08,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:08,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:08,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:10,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:13,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:13,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2192 [2020-10-14 22:18:13,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:18:13,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5058 [2020-10-14 22:18:13,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:13,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:13,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:13,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 968 [2020-10-14 22:18:13,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 22:18:13,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:13,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:13,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:13,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:13,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:13,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:13,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:13,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:18:13,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:13,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:13,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:13,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:13,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:13,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:13,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:13,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:13,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:13,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:18:13,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:13,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:18:13,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:13,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:13,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:13,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:13,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:13,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:13,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:18:13,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:13,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:13,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:13,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:18:13,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:13,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:18:13,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:13,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:13,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:13,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:13,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:13,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:13,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:18:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:13,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:13,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:13,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:18:13,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:13,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:18:13,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:13,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:13,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:13,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:13,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:13,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:13,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:18:13,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:13,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:13,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:13,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 22:18:13,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:13,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 22:18:13,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:13,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:13,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:13,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:13,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:13,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:13,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 875 [2020-10-14 22:18:13,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:13,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:13,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:13,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:18:13,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:13,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 22:18:13,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:13,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:13,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:13,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:13,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 22:18:13,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:13,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 958 [2020-10-14 22:18:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:13,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:13,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:13,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:18:13,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:13,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-14 22:18:13,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:13,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:13,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:13,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:13,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 22:18:13,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:14,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1208 [2020-10-14 22:18:14,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:14,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:14,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:14,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:18:14,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:14,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 22:18:14,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:14,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:14,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:14,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:18:14,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:14,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:14,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1481 [2020-10-14 22:18:14,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:14,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:14,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:14,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-14 22:18:14,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:14,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 22:18:14,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:14,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:14,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:14,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 263 [2020-10-14 22:18:14,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:14,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:14,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1746 [2020-10-14 22:18:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:14,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:14,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:14,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:18:14,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:14,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 22:18:14,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:14,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:14,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:14,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:18:14,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:14,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:14,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1961 [2020-10-14 22:18:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:14,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:14,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:14,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-14 22:18:14,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:14,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:18:14,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:14,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:14,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:14,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-14 22:18:14,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:14,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:18,111 INFO L134 CoverageAnalysis]: Checked inductivity of 8223 backedges. 1349 proven. 875 refuted. 0 times theorem prover too weak. 5999 trivial. 0 not checked. [2020-10-14 22:18:18,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [153496578] [2020-10-14 22:18:18,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:18,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:18:18,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660365402] [2020-10-14 22:18:18,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:18:18,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:18,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:18:18,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:18:18,114 INFO L87 Difference]: Start difference. First operand 22146 states and 22840 transitions. Second operand 7 states.