/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/recursive/Fibonacci01-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 01:59:35,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 01:59:35,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 01:59:35,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 01:59:35,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 01:59:35,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 01:59:35,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 01:59:35,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 01:59:35,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 01:59:35,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 01:59:35,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 01:59:35,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 01:59:35,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 01:59:35,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 01:59:35,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 01:59:35,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 01:59:35,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 01:59:35,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 01:59:35,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 01:59:35,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 01:59:35,874 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 01:59:35,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 01:59:35,876 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 01:59:35,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 01:59:35,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 01:59:35,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 01:59:35,889 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 01:59:35,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 01:59:35,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 01:59:35,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 01:59:35,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 01:59:35,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 01:59:35,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 01:59:35,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 01:59:35,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 01:59:35,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 01:59:35,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 01:59:35,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 01:59:35,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 01:59:35,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 01:59:35,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 01:59:35,911 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 [2020-10-15 01:59:35,946 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 01:59:35,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 01:59:35,948 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 01:59:35,948 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 01:59:35,949 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 01:59:35,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 01:59:35,949 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 01:59:35,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 01:59:35,950 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 01:59:35,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 01:59:35,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 01:59:35,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 01:59:35,951 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 01:59:35,952 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 01:59:35,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 01:59:35,952 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 01:59:35,952 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 01:59:35,952 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 01:59:35,953 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 01:59:35,953 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 01:59:35,953 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 01:59:35,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 01:59:35,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 01:59:35,954 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 01:59:35,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 01:59:35,954 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 01:59:35,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 01:59:35,954 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 01:59:35,955 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 01:59:35,955 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; [2020-10-15 01:59:36,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 01:59:36,252 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 01:59:36,255 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 01:59:36,256 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 01:59:36,257 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 01:59:36,258 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Fibonacci01-1.c [2020-10-15 01:59:36,320 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8471a6776/b99d2609d943484989e205ebbd79eadc/FLAG1ca84219c [2020-10-15 01:59:36,743 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 01:59:36,744 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Fibonacci01-1.c [2020-10-15 01:59:36,750 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8471a6776/b99d2609d943484989e205ebbd79eadc/FLAG1ca84219c [2020-10-15 01:59:37,111 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8471a6776/b99d2609d943484989e205ebbd79eadc [2020-10-15 01:59:37,120 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 01:59:37,121 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 01:59:37,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 01:59:37,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 01:59:37,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 01:59:37,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:59:37" (1/1) ... [2020-10-15 01:59:37,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@693a331e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:37, skipping insertion in model container [2020-10-15 01:59:37,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:59:37" (1/1) ... [2020-10-15 01:59:37,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 01:59:37,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 01:59:37,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 01:59:37,300 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 01:59:37,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 01:59:37,325 INFO L208 MainTranslator]: Completed translation [2020-10-15 01:59:37,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:37 WrapperNode [2020-10-15 01:59:37,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 01:59:37,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 01:59:37,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 01:59:37,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 01:59:37,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:37" (1/1) ... [2020-10-15 01:59:37,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:37" (1/1) ... [2020-10-15 01:59:37,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:37" (1/1) ... [2020-10-15 01:59:37,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:37" (1/1) ... [2020-10-15 01:59:37,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:37" (1/1) ... [2020-10-15 01:59:37,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:37" (1/1) ... [2020-10-15 01:59:37,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:37" (1/1) ... [2020-10-15 01:59:37,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 01:59:37,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 01:59:37,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 01:59:37,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 01:59:37,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:37" (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 [2020-10-15 01:59:37,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 01:59:37,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 01:59:37,497 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2020-10-15 01:59:37,497 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 01:59:37,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 01:59:37,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 01:59:37,497 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2020-10-15 01:59:37,498 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 01:59:37,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 01:59:37,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 01:59:37,666 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 01:59:37,666 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 01:59:37,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:59:37 BoogieIcfgContainer [2020-10-15 01:59:37,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 01:59:37,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 01:59:37,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 01:59:37,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 01:59:37,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:59:37" (1/3) ... [2020-10-15 01:59:37,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab3dbe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:59:37, skipping insertion in model container [2020-10-15 01:59:37,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:59:37" (2/3) ... [2020-10-15 01:59:37,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab3dbe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:59:37, skipping insertion in model container [2020-10-15 01:59:37,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:59:37" (3/3) ... [2020-10-15 01:59:37,681 INFO L109 eAbstractionObserver]: Analyzing ICFG Fibonacci01-1.c [2020-10-15 01:59:37,691 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 01:59:37,698 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 01:59:37,712 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 01:59:37,735 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 01:59:37,735 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 01:59:37,735 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 01:59:37,736 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 01:59:37,736 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 01:59:37,736 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 01:59:37,736 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 01:59:37,736 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 01:59:37,754 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-10-15 01:59:37,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 01:59:37,761 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:59:37,762 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:59:37,762 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:59:37,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:59:37,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1900973920, now seen corresponding path program 1 times [2020-10-15 01:59:37,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:59:37,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [250160030] [2020-10-15 01:59:37,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:59:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:37,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:38,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:38,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 01:59:38,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:38,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-15 01:59:38,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:38,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:38,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 01:59:38,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 01:59:38,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 01:59:38,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 01:59:38,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:59:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:38,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:38,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:38,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:59:38,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:38,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:59:38,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:38,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:38,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:59:38,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:38,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:59:38,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:38,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:59:38,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:38,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:38,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:38,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 01:59:38,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:38,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-15 01:59:38,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:38,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:38,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 01:59:38,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:38,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 01:59:38,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 01:59:38,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 01:59:38,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [250160030] [2020-10-15 01:59:38,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:59:38,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 01:59:38,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287468364] [2020-10-15 01:59:38,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 01:59:38,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:59:38,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 01:59:38,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 01:59:38,233 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 6 states. [2020-10-15 01:59:38,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:59:38,397 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2020-10-15 01:59:38,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 01:59:38,399 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-15 01:59:38,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:59:38,410 INFO L225 Difference]: With dead ends: 36 [2020-10-15 01:59:38,411 INFO L226 Difference]: Without dead ends: 22 [2020-10-15 01:59:38,414 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-15 01:59:38,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-15 01:59:38,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-15 01:59:38,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-15 01:59:38,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2020-10-15 01:59:38,478 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 14 [2020-10-15 01:59:38,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:59:38,479 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2020-10-15 01:59:38,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 01:59:38,479 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2020-10-15 01:59:38,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 01:59:38,484 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:59:38,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:59:38,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 01:59:38,488 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:59:38,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:59:38,488 INFO L82 PathProgramCache]: Analyzing trace with hash -509871596, now seen corresponding path program 1 times [2020-10-15 01:59:38,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:59:38,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289070535] [2020-10-15 01:59:38,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:59:38,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:38,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:38,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:38,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-15 01:59:38,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:38,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-15 01:59:38,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:38,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:38,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 01:59:38,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 01:59:38,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 01:59:38,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:38,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:59:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:38,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:38,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:38,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:59:38,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:38,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:59:38,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:38,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:38,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:59:38,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:38,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:59:38,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:38,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:59:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:38,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:38,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:38,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 01:59:38,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:38,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 01:59:38,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:38,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:38,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 01:59:38,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:38,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 01:59:38,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:38,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 01:59:38,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [289070535] [2020-10-15 01:59:38,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:59:38,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 01:59:38,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799197599] [2020-10-15 01:59:38,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 01:59:38,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:59:38,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 01:59:38,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 01:59:38,679 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 6 states. [2020-10-15 01:59:38,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:59:38,763 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2020-10-15 01:59:38,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 01:59:38,764 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-15 01:59:38,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:59:38,765 INFO L225 Difference]: With dead ends: 28 [2020-10-15 01:59:38,765 INFO L226 Difference]: Without dead ends: 24 [2020-10-15 01:59:38,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-15 01:59:38,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-15 01:59:38,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2020-10-15 01:59:38,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-15 01:59:38,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2020-10-15 01:59:38,775 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 15 [2020-10-15 01:59:38,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:59:38,776 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2020-10-15 01:59:38,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 01:59:38,776 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2020-10-15 01:59:38,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 01:59:38,778 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:59:38,778 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:59:38,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 01:59:38,779 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:59:38,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:59:38,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1203666899, now seen corresponding path program 1 times [2020-10-15 01:59:38,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:59:38,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2068859980] [2020-10-15 01:59:38,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:59:38,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:38,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:38,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:39,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:39,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-15 01:59:39,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 01:59:39,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-10-15 01:59:39,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:39,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:39,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-15 01:59:39,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 01:59:39,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 01:59:39,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:39,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:59:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:39,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:39,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:39,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:59:39,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:39,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:59:39,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:39,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:39,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:59:39,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:39,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:59:39,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:39,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:59:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:39,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:39,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:39,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:39,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 01:59:39,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 01:59:39,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-10-15 01:59:39,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:39,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:39,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 01:59:39,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:39,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 01:59:39,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:39,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 01:59:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:39,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:39,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:39,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 01:59:39,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:39,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 01:59:39,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:39,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:39,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 01:59:39,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:39,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 01:59:39,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:39,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:59:39,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:39,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:39,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:39,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 01:59:39,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:39,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 01:59:39,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:39,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:39,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:59:39,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:39,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 01:59:39,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 01:59:39,582 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 01:59:39,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2068859980] [2020-10-15 01:59:39,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 01:59:39,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-15 01:59:39,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828772301] [2020-10-15 01:59:39,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 01:59:39,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:59:39,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 01:59:39,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-15 01:59:39,589 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 10 states. [2020-10-15 01:59:39,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:59:39,795 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2020-10-15 01:59:39,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 01:59:39,796 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2020-10-15 01:59:39,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:59:39,797 INFO L225 Difference]: With dead ends: 32 [2020-10-15 01:59:39,797 INFO L226 Difference]: Without dead ends: 28 [2020-10-15 01:59:39,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-10-15 01:59:39,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-15 01:59:39,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2020-10-15 01:59:39,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-15 01:59:39,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2020-10-15 01:59:39,807 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 27 [2020-10-15 01:59:39,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:59:39,807 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-10-15 01:59:39,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 01:59:39,808 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2020-10-15 01:59:39,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-15 01:59:39,809 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:59:39,810 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:59:39,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 01:59:39,810 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:59:39,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:59:39,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1317759004, now seen corresponding path program 2 times [2020-10-15 01:59:39,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:59:39,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [115983150] [2020-10-15 01:59:39,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:59:39,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:39,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:39,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:39,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:40,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:41,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:41,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-15 01:59:41,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 01:59:41,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1741 [2020-10-15 01:59:41,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:41,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:41,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-15 01:59:41,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 01:59:41,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-15 01:59:41,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:41,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:59:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:41,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:41,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:41,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:59:41,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:41,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:59:41,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:41,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:41,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:59:41,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:41,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:59:41,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:41,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:59:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:41,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:41,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:41,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:41,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:42,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:42,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-15 01:59:42,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 01:59:42,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1170 [2020-10-15 01:59:42,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:42,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:42,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 01:59:42,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:42,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-15 01:59:42,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:42,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 01:59:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:42,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:42,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:42,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 01:59:42,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:42,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 01:59:42,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:42,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:42,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 01:59:42,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:42,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 01:59:42,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:42,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:59:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:42,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:42,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:42,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:42,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 01:59:42,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 01:59:42,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-15 01:59:42,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:42,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:42,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 01:59:42,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:42,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 01:59:42,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:43,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 01:59:43,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:43,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:43,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:43,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 01:59:43,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:43,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 01:59:43,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:43,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:43,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 01:59:43,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:43,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:59:43,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:43,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:59:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:43,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:43,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:43,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 01:59:43,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:43,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 01:59:43,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:43,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:43,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:59:43,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:43,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 01:59:43,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:43,068 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-15 01:59:43,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [115983150] [2020-10-15 01:59:43,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 01:59:43,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-15 01:59:43,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001776346] [2020-10-15 01:59:43,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 01:59:43,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:59:43,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 01:59:43,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-10-15 01:59:43,071 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand 14 states. [2020-10-15 01:59:43,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:59:43,433 INFO L93 Difference]: Finished difference Result 54 states and 93 transitions. [2020-10-15 01:59:43,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 01:59:43,434 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 40 [2020-10-15 01:59:43,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:59:43,437 INFO L225 Difference]: With dead ends: 54 [2020-10-15 01:59:43,437 INFO L226 Difference]: Without dead ends: 50 [2020-10-15 01:59:43,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2020-10-15 01:59:43,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-15 01:59:43,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 39. [2020-10-15 01:59:43,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-15 01:59:43,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 66 transitions. [2020-10-15 01:59:43,454 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 66 transitions. Word has length 40 [2020-10-15 01:59:43,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:59:43,455 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 66 transitions. [2020-10-15 01:59:43,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 01:59:43,455 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 66 transitions. [2020-10-15 01:59:43,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-15 01:59:43,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:59:43,461 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:59:43,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 01:59:43,462 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:59:43,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:59:43,462 INFO L82 PathProgramCache]: Analyzing trace with hash -862008624, now seen corresponding path program 1 times [2020-10-15 01:59:43,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:59:43,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [67013855] [2020-10-15 01:59:43,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:59:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:43,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:43,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:43,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:43,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:43,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:43,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:43,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:44,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:44,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:46,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:46,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 01:59:46,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 01:59:46,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2778 [2020-10-15 01:59:46,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:46,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:46,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-15 01:59:46,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 01:59:46,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-15 01:59:46,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:46,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:59:46,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:46,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:46,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:46,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:59:46,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:46,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:59:46,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:46,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:46,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:59:46,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:46,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:59:46,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:46,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:59:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:46,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:46,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:46,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:46,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:46,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:46,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:46,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:46,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:48,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:48,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-15 01:59:48,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 01:59:48,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2046 [2020-10-15 01:59:48,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:48,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:48,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 01:59:48,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:48,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-15 01:59:48,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:48,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 01:59:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:48,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:48,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:48,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 01:59:48,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:48,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 01:59:48,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:48,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:48,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 01:59:48,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:48,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 01:59:48,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:48,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:59:48,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:48,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:48,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:48,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:48,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:48,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:48,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 01:59:48,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 01:59:48,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-10-15 01:59:48,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:48,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:48,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 01:59:48,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:48,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 01:59:48,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:48,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 01:59:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:48,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:48,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:48,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 01:59:48,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:48,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:59:48,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:48,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:48,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 01:59:48,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:48,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:59:48,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:48,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:59:48,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:48,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:48,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:48,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 01:59:48,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:48,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 01:59:48,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:48,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:48,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:59:48,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:48,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 01:59:48,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:48,790 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 25 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 01:59:48,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [67013855] [2020-10-15 01:59:48,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 01:59:48,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-15 01:59:48,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920471726] [2020-10-15 01:59:48,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 01:59:48,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:59:48,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 01:59:48,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-15 01:59:48,793 INFO L87 Difference]: Start difference. First operand 39 states and 66 transitions. Second operand 13 states. [2020-10-15 01:59:49,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:59:49,041 INFO L93 Difference]: Finished difference Result 52 states and 95 transitions. [2020-10-15 01:59:49,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 01:59:49,042 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 41 [2020-10-15 01:59:49,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:59:49,044 INFO L225 Difference]: With dead ends: 52 [2020-10-15 01:59:49,045 INFO L226 Difference]: Without dead ends: 48 [2020-10-15 01:59:49,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2020-10-15 01:59:49,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-15 01:59:49,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2020-10-15 01:59:49,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-15 01:59:49,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 82 transitions. [2020-10-15 01:59:49,058 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 82 transitions. Word has length 41 [2020-10-15 01:59:49,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:59:49,059 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 82 transitions. [2020-10-15 01:59:49,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 01:59:49,059 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 82 transitions. [2020-10-15 01:59:49,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-15 01:59:49,061 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:59:49,062 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:59:49,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 01:59:49,062 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:59:49,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:59:49,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1718511602, now seen corresponding path program 2 times [2020-10-15 01:59:49,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:59:49,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [919409416] [2020-10-15 01:59:49,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:59:49,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:49,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:49,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:49,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:49,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:49,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:49,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 01:59:49,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 01:59:49,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 429 [2020-10-15 01:59:49,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:49,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:49,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-15 01:59:49,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 01:59:49,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-15 01:59:49,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:59:49,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:59:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:49,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:49,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:49,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:59:49,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:49,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:59:49,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:49,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:49,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:59:49,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:49,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:59:49,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:59:49,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:59:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:49,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:49,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:49,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:49,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:50,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:50,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-15 01:59:50,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 01:59:50,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 481 [2020-10-15 01:59:50,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:50,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:50,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 01:59:50,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:50,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-15 01:59:50,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:59:50,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 01:59:50,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:50,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:50,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:50,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 01:59:50,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:50,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 01:59:50,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:50,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:50,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 01:59:50,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:50,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 01:59:50,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:50,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 01:59:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:50,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:50,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:50,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:50,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 01:59:50,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 01:59:50,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-15 01:59:50,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:50,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:50,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 01:59:50,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:50,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 01:59:50,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:50,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 01:59:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:50,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:50,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:50,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 01:59:50,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:50,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:59:50,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:50,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:50,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 01:59:50,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:50,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:59:50,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:50,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:59:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:50,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:50,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:50,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 01:59:50,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:50,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:59:50,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:50,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:50,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:59:50,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:50,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 01:59:50,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:50,259 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-15 01:59:50,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [919409416] [2020-10-15 01:59:50,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 01:59:50,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-15 01:59:50,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728363755] [2020-10-15 01:59:50,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 01:59:50,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:59:50,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 01:59:50,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-15 01:59:50,261 INFO L87 Difference]: Start difference. First operand 44 states and 82 transitions. Second operand 14 states. [2020-10-15 01:59:50,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:59:50,510 INFO L93 Difference]: Finished difference Result 54 states and 102 transitions. [2020-10-15 01:59:50,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 01:59:50,511 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 41 [2020-10-15 01:59:50,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:59:50,512 INFO L225 Difference]: With dead ends: 54 [2020-10-15 01:59:50,513 INFO L226 Difference]: Without dead ends: 50 [2020-10-15 01:59:50,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2020-10-15 01:59:50,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-15 01:59:50,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 34. [2020-10-15 01:59:50,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-15 01:59:50,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 51 transitions. [2020-10-15 01:59:50,525 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 51 transitions. Word has length 41 [2020-10-15 01:59:50,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:59:50,525 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 51 transitions. [2020-10-15 01:59:50,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 01:59:50,526 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 51 transitions. [2020-10-15 01:59:50,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-15 01:59:50,531 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:59:50,531 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:59:50,532 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 01:59:50,532 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:59:50,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:59:50,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1952548262, now seen corresponding path program 3 times [2020-10-15 01:59:50,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:59:50,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1449318695] [2020-10-15 01:59:50,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:59:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:50,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:50,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:50,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:50,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:50,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:50,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:51,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:51,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-15 01:59:51,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 01:59:51,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 546 [2020-10-15 01:59:51,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:51,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:51,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 01:59:51,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 01:59:51,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-15 01:59:51,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:59:51,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:59:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:51,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:51,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:51,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:59:51,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:51,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:59:51,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:51,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:51,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:59:51,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:51,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:59:51,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:59:51,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:59:51,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:51,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:51,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:51,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:51,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:51,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:51,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:51,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:51,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-15 01:59:51,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 01:59:51,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 423 [2020-10-15 01:59:51,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:51,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:51,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 01:59:51,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:51,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-15 01:59:51,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:51,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 01:59:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:51,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:51,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:51,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:51,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:51,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 01:59:51,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 01:59:51,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-15 01:59:51,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:51,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:51,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 01:59:51,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:51,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 01:59:51,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:51,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 01:59:51,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:51,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:51,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:51,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 01:59:51,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:51,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:59:51,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:51,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:51,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:59:51,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:51,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 01:59:51,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:51,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:59:51,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:51,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:51,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:51,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 01:59:51,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:51,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:59:51,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:51,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:51,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:59:51,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:51,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 01:59:51,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:51,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-15 01:59:51,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:51,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:51,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:51,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 01:59:51,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:51,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 01:59:51,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:51,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:51,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 01:59:51,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:51,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 01:59:51,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:51,832 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 18 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-15 01:59:51,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1449318695] [2020-10-15 01:59:51,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 01:59:51,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-15 01:59:51,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536206476] [2020-10-15 01:59:51,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 01:59:51,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:59:51,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 01:59:51,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-10-15 01:59:51,836 INFO L87 Difference]: Start difference. First operand 34 states and 51 transitions. Second operand 13 states. [2020-10-15 01:59:52,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:59:52,150 INFO L93 Difference]: Finished difference Result 67 states and 117 transitions. [2020-10-15 01:59:52,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 01:59:52,150 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 40 [2020-10-15 01:59:52,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:59:52,151 INFO L225 Difference]: With dead ends: 67 [2020-10-15 01:59:52,152 INFO L226 Difference]: Without dead ends: 38 [2020-10-15 01:59:52,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2020-10-15 01:59:52,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-15 01:59:52,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2020-10-15 01:59:52,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-15 01:59:52,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 50 transitions. [2020-10-15 01:59:52,160 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 50 transitions. Word has length 40 [2020-10-15 01:59:52,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:59:52,161 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 50 transitions. [2020-10-15 01:59:52,161 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 01:59:52,161 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 50 transitions. [2020-10-15 01:59:52,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-15 01:59:52,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:59:52,163 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:59:52,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 01:59:52,164 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:59:52,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:59:52,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1391487784, now seen corresponding path program 3 times [2020-10-15 01:59:52,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:59:52,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1094983697] [2020-10-15 01:59:52,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:59:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:52,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:52,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:52,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:52,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:52,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-15 01:59:52,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 01:59:52,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 630 [2020-10-15 01:59:52,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:52,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:52,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-15 01:59:52,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 01:59:52,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 01:59:52,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:52,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:59:52,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:52,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:52,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:52,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:59:52,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:52,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:59:52,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:52,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:52,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:59:52,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:52,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:59:52,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:59:52,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:59:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:52,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:52,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:52,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:53,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:53,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-15 01:59:53,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 01:59:53,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 582 [2020-10-15 01:59:53,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:53,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:53,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 01:59:53,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:53,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-15 01:59:53,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:53,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 01:59:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:53,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:53,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:53,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 01:59:53,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:53,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-15 01:59:53,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:53,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:53,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 01:59:53,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:53,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 01:59:53,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:53,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 01:59:53,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:53,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:53,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:53,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 01:59:53,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:53,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 01:59:53,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:53,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:53,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 01:59:53,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:53,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 01:59:53,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:53,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 01:59:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:53,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:53,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:53,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 01:59:53,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:53,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 01:59:53,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:53,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:53,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:59:53,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:53,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 01:59:53,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:53,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-15 01:59:53,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:53,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:53,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:53,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 01:59:53,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:53,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 01:59:53,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:53,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:53,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 01:59:53,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:53,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 01:59:53,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:59:53,687 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 5 proven. 31 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-15 01:59:53,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1094983697] [2020-10-15 01:59:53,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 01:59:53,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-15 01:59:53,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522377061] [2020-10-15 01:59:53,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 01:59:53,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:59:53,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 01:59:53,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-15 01:59:53,692 INFO L87 Difference]: Start difference. First operand 34 states and 50 transitions. Second operand 15 states. [2020-10-15 01:59:54,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:59:54,040 INFO L93 Difference]: Finished difference Result 67 states and 128 transitions. [2020-10-15 01:59:54,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 01:59:54,040 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 42 [2020-10-15 01:59:54,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:59:54,042 INFO L225 Difference]: With dead ends: 67 [2020-10-15 01:59:54,042 INFO L226 Difference]: Without dead ends: 63 [2020-10-15 01:59:54,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2020-10-15 01:59:54,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-15 01:59:54,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 39. [2020-10-15 01:59:54,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-15 01:59:54,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 64 transitions. [2020-10-15 01:59:54,065 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 64 transitions. Word has length 42 [2020-10-15 01:59:54,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:59:54,067 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 64 transitions. [2020-10-15 01:59:54,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 01:59:54,067 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 64 transitions. [2020-10-15 01:59:54,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-15 01:59:54,069 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:59:54,070 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 01:59:54,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 01:59:54,070 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:59:54,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:59:54,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1530695802, now seen corresponding path program 4 times [2020-10-15 01:59:54,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:59:54,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095152409] [2020-10-15 01:59:54,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:59:54,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:54,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:54,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:54,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:54,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:54,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:54,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:54,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:54,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:54,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:54,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:54,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:54,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:54,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:55,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:55,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:55,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:55,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:55,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:55,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:55,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:55,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:57,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:57,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:58,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:59,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:59,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-15 01:59:59,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 24 [2020-10-15 01:59:59,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 01:59:59,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:59,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:59,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 01:59:59,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-15 01:59:59,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 01:59:59,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:59:59,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:59:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:59,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:59,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:59:59,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:59:59,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:59:59,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:59:59,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:59:59,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:59:59,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:59:59,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:59:59,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:59:59,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:59:59,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:59:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:59:59,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:59,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:59,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:59,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:59,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:59,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:59,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:59,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:59:59,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:00,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:00,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:00,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:00,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:00,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:00,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:00,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:00,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:00,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:00,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:00,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:01,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:01,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:01,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:01,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:01,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:01,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:04,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:04,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-15 02:00:04,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 26 [2020-10-15 02:00:04,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 02:00:04,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:04,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:04,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:00:04,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-15 02:00:04,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:00:04,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:04,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:04,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:04,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:04,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:04,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:04,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:04,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 02:00:04,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:00:04,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-15 02:00:04,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:04,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:04,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:00:04,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:04,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 02:00:04,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:04,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:04,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:04,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:04,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:00:04,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:04,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:00:04,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:04,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:04,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:00:04,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:04,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:00:04,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:04,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 02:00:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:04,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:04,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:04,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:00:04,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:04,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:00:04,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:04,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:04,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:00:04,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:04,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:00:04,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:04,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-15 02:00:04,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:04,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:04,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:04,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:04,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:04,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:04,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:04,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:04,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:05,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:05,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:05,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-15 02:00:05,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 02:00:05,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1492 [2020-10-15 02:00:05,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:05,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:05,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:00:05,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:00:05,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-15 02:00:05,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:05,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:05,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:05,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:05,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:05,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:05,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:05,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:05,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:05,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:06,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:06,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:00:06,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 02:00:06,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-10-15 02:00:06,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:06,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:06,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:00:06,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:06,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:00:06,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:06,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:06,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:06,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:06,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:00:06,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:06,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:00:06,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:06,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:06,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:00:06,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:06,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:00:06,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:06,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 02:00:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:06,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:06,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:06,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:00:06,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:06,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:00:06,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:06,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:06,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:00:06,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:06,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:00:06,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:06,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-15 02:00:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:06,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:06,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:06,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:00:06,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:06,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:00:06,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:06,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:06,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:00:06,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:00:06,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:00:06,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:06,185 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 74 proven. 41 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-10-15 02:00:06,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1095152409] [2020-10-15 02:00:06,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:00:06,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-15 02:00:06,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709234734] [2020-10-15 02:00:06,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 02:00:06,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:00:06,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 02:00:06,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-15 02:00:06,188 INFO L87 Difference]: Start difference. First operand 39 states and 64 transitions. Second operand 12 states. [2020-10-15 02:00:06,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:00:06,404 INFO L93 Difference]: Finished difference Result 77 states and 145 transitions. [2020-10-15 02:00:06,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 02:00:06,408 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 69 [2020-10-15 02:00:06,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:00:06,410 INFO L225 Difference]: With dead ends: 77 [2020-10-15 02:00:06,410 INFO L226 Difference]: Without dead ends: 45 [2020-10-15 02:00:06,411 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2020-10-15 02:00:06,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-15 02:00:06,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2020-10-15 02:00:06,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-15 02:00:06,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 61 transitions. [2020-10-15 02:00:06,418 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 61 transitions. Word has length 69 [2020-10-15 02:00:06,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:00:06,419 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 61 transitions. [2020-10-15 02:00:06,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 02:00:06,419 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 61 transitions. [2020-10-15 02:00:06,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-15 02:00:06,420 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:00:06,420 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:00:06,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:00:06,421 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:00:06,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:00:06,421 INFO L82 PathProgramCache]: Analyzing trace with hash -333031226, now seen corresponding path program 5 times [2020-10-15 02:00:06,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:00:06,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1280614173] [2020-10-15 02:00:06,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:00:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:06,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:06,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:06,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:06,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:06,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:06,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:06,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:06,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:06,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:06,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:06,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:06,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:07,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:07,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:07,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:11,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:11,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-15 02:00:11,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 02:00:11,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 02:00:11,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:11,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:11,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:00:11,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-15 02:00:11,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:00:11,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:11,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:00:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:11,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:11,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:11,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:00:11,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:11,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:00:11,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:11,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:11,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:11,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:11,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:11,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:11,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:00:11,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:11,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:11,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:11,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:11,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:11,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:11,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:11,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:12,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:12,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:12,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:12,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:12,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:12,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:13,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:13,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:16,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:16,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-15 02:00:16,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 02:00:16,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 02:00:16,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:16,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:16,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:00:16,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-15 02:00:16,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:00:16,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:16,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:16,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:16,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:16,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:16,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 02:00:16,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:00:16,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-15 02:00:16,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:16,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:16,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:00:16,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:16,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 02:00:16,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:16,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:16,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:16,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:16,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:16,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:00:16,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:16,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:00:16,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:16,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:16,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:00:16,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:16,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:00:16,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:16,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 02:00:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:16,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:16,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:16,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:00:16,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:16,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:00:16,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:16,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:16,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:00:16,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:16,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:00:16,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:16,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-15 02:00:16,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:16,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:16,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:16,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:16,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:16,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:16,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:16,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:16,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-15 02:00:16,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:00:16,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-10-15 02:00:16,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:16,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:16,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:00:16,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:00:16,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-15 02:00:16,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:16,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:16,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:16,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:16,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:16,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 02:00:16,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:16,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:00:16,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:16,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:16,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:00:16,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:16,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 02:00:16,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:16,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:16,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:16,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:16,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:00:16,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:16,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:00:16,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:16,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:16,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:16,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:16,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:16,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:16,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 02:00:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:16,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:16,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:16,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:00:16,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:16,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:00:16,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:16,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:16,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:16,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:16,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:16,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:16,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-15 02:00:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:16,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:16,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:16,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:00:16,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:16,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:00:16,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:16,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:16,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:00:16,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:16,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:00:16,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:16,917 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 43 proven. 66 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-15 02:00:16,917 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1280614173] [2020-10-15 02:00:16,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:00:16,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-15 02:00:16,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338029145] [2020-10-15 02:00:16,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:00:16,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:00:16,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:00:16,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:00:16,921 INFO L87 Difference]: Start difference. First operand 39 states and 61 transitions. Second operand 9 states. [2020-10-15 02:00:17,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:00:17,188 INFO L93 Difference]: Finished difference Result 85 states and 155 transitions. [2020-10-15 02:00:17,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 02:00:17,188 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-10-15 02:00:17,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:00:17,190 INFO L225 Difference]: With dead ends: 85 [2020-10-15 02:00:17,190 INFO L226 Difference]: Without dead ends: 53 [2020-10-15 02:00:17,192 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2020-10-15 02:00:17,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-15 02:00:17,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2020-10-15 02:00:17,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-15 02:00:17,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 65 transitions. [2020-10-15 02:00:17,199 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 65 transitions. Word has length 69 [2020-10-15 02:00:17,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:00:17,199 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 65 transitions. [2020-10-15 02:00:17,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:00:17,200 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 65 transitions. [2020-10-15 02:00:17,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-15 02:00:17,200 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:00:17,201 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:00:17,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 02:00:17,201 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:00:17,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:00:17,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1007952971, now seen corresponding path program 6 times [2020-10-15 02:00:17,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:00:17,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1869362775] [2020-10-15 02:00:17,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:00:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:17,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:17,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:17,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:17,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:17,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:17,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:17,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:17,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:18,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:18,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:18,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-15 02:00:18,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 02:00:18,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1456 [2020-10-15 02:00:18,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:18,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:18,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-15 02:00:18,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 02:00:18,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:00:18,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:18,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:00:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:18,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:18,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:18,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:00:18,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:18,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:00:18,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:18,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:18,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:18,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:18,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:18,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:18,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:00:18,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:18,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:18,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:18,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:18,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:18,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:18,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:19,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:19,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-15 02:00:19,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:00:19,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 834 [2020-10-15 02:00:19,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:19,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:19,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:00:19,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-15 02:00:19,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-15 02:00:19,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:19,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:19,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:19,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:19,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:19,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:19,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:19,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:19,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:20,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:20,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-15 02:00:20,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:00:20,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 611 [2020-10-15 02:00:20,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:20,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:20,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:00:20,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:20,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-15 02:00:20,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:20,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:20,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:20,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:20,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:20,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 02:00:20,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:20,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:00:20,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:20,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:20,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:00:20,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:20,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 02:00:20,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:20,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:20,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:20,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:20,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:20,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:00:20,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:20,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:00:20,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:20,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:20,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:20,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:20,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:20,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:20,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 02:00:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:20,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:20,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:20,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:00:20,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:20,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:00:20,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:20,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:20,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:20,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:20,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:20,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:20,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-15 02:00:20,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:20,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:20,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:20,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:20,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:00:20,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:00:20,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:00:20,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:20,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:20,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:00:20,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:20,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:00:20,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:20,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-15 02:00:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:20,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:20,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:20,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:00:20,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:20,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:00:20,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:20,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:20,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:00:20,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:00:20,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:00:20,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:20,239 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 56 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-15 02:00:20,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1869362775] [2020-10-15 02:00:20,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:00:20,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-15 02:00:20,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416865005] [2020-10-15 02:00:20,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:00:20,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:00:20,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:00:20,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:00:20,241 INFO L87 Difference]: Start difference. First operand 47 states and 65 transitions. Second operand 10 states. [2020-10-15 02:00:20,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:00:20,461 INFO L93 Difference]: Finished difference Result 86 states and 121 transitions. [2020-10-15 02:00:20,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 02:00:20,462 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 56 [2020-10-15 02:00:20,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:00:20,463 INFO L225 Difference]: With dead ends: 86 [2020-10-15 02:00:20,463 INFO L226 Difference]: Without dead ends: 42 [2020-10-15 02:00:20,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2020-10-15 02:00:20,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-15 02:00:20,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-15 02:00:20,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-15 02:00:20,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2020-10-15 02:00:20,470 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 56 [2020-10-15 02:00:20,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:00:20,470 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2020-10-15 02:00:20,470 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:00:20,470 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2020-10-15 02:00:20,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-15 02:00:20,471 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:00:20,472 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 9, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:00:20,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 02:00:20,472 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:00:20,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:00:20,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1611334083, now seen corresponding path program 7 times [2020-10-15 02:00:20,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:00:20,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [307114845] [2020-10-15 02:00:20,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:00:20,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:20,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:20,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:20,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:20,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:20,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:20,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:20,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:20,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:20,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:20,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:20,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:20,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:22,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:22,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:22,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:23,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:23,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:25,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:25,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-15 02:00:25,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-15 02:00:25,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 02:00:25,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:25,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:25,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:00:25,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-15 02:00:25,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:00:25,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:25,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:00:25,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:25,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:25,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:25,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:00:25,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:25,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:00:25,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:25,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:25,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:25,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:25,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:25,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:25,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:00:25,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:25,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:25,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:25,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:25,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:25,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:25,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:25,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:26,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:26,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:26,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:26,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:26,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:26,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:26,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:26,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:26,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:26,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:26,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:26,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:26,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:27,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:30,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:30,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-15 02:00:30,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-10-15 02:00:30,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 02:00:30,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:30,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:30,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:00:30,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-15 02:00:30,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-15 02:00:30,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:30,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:30,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:30,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:30,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:30,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:30,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:30,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-15 02:00:30,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:00:30,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-10-15 02:00:30,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:30,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:30,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:00:30,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:30,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-15 02:00:30,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:30,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:30,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:30,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:30,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:30,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 02:00:30,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:30,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:00:30,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:30,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:30,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:00:30,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:30,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 02:00:30,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:30,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:30,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:30,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:30,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:00:30,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:30,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:00:30,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:30,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:30,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:30,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:30,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:30,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:30,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 02:00:30,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:30,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:30,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:30,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:00:30,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:30,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:00:30,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:30,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:30,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:30,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:30,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:30,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:30,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-15 02:00:30,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:30,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:30,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:30,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:00:30,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:30,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:00:30,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:30,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:30,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:00:30,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:30,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:00:30,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:30,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-15 02:00:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:30,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:30,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:30,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:30,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:30,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:30,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:31,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:31,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-15 02:00:31,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:00:31,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 516 [2020-10-15 02:00:31,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:31,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:31,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:00:31,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:00:31,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-15 02:00:31,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:31,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:31,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:31,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:31,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 02:00:31,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:31,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:00:31,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:31,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:31,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:00:31,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:31,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 02:00:31,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:31,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:31,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:31,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:31,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:00:31,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:31,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:00:31,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:31,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:31,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:31,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:31,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:31,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:31,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 02:00:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:31,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:31,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:31,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:00:31,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:31,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:00:31,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:31,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:31,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:31,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:31,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:31,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:31,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-15 02:00:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:31,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:31,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:31,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:31,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:00:31,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:00:31,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:00:31,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:31,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:31,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:00:31,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:31,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:00:31,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:31,437 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 104 proven. 67 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2020-10-15 02:00:31,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [307114845] [2020-10-15 02:00:31,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:00:31,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-15 02:00:31,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496175714] [2020-10-15 02:00:31,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:00:31,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:00:31,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:00:31,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:00:31,438 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand 9 states. [2020-10-15 02:00:31,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:00:31,759 INFO L93 Difference]: Finished difference Result 93 states and 125 transitions. [2020-10-15 02:00:31,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:00:31,760 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-10-15 02:00:31,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:00:31,763 INFO L225 Difference]: With dead ends: 93 [2020-10-15 02:00:31,763 INFO L226 Difference]: Without dead ends: 56 [2020-10-15 02:00:31,764 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:00:31,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-15 02:00:31,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 50. [2020-10-15 02:00:31,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-15 02:00:31,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 62 transitions. [2020-10-15 02:00:31,771 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 62 transitions. Word has length 83 [2020-10-15 02:00:31,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:00:31,771 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 62 transitions. [2020-10-15 02:00:31,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:00:31,772 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2020-10-15 02:00:31,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-15 02:00:31,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:00:31,772 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:00:31,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 02:00:31,773 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:00:31,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:00:31,773 INFO L82 PathProgramCache]: Analyzing trace with hash -865837754, now seen corresponding path program 8 times [2020-10-15 02:00:31,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:00:31,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [300719641] [2020-10-15 02:00:31,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:00:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:31,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:31,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:31,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:32,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:33,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:36,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:36,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-15 02:00:36,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:00:36,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 02:00:36,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:36,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:36,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:00:36,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-15 02:00:36,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-15 02:00:36,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:36,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:00:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:36,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:36,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:36,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:00:36,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:36,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:00:36,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:36,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:36,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:36,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:36,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:36,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:36,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:00:36,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:36,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:36,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:36,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:36,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:37,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:41,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:41,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-15 02:00:41,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:00:41,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4774 [2020-10-15 02:00:41,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:41,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:41,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:00:41,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:41,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-15 02:00:41,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:41,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:41,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:41,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:41,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-15 02:00:41,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:41,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-15 02:00:41,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:41,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:41,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-15 02:00:41,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:41,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-15 02:00:41,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:41,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:41,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:41,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:41,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:41,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 02:00:41,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:41,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:00:41,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:41,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:41,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:00:41,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:41,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:00:41,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:41,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:41,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:41,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:41,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:00:41,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:41,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:00:41,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:41,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:41,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:00:41,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:41,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:00:41,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:41,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 02:00:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:41,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:41,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:41,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:00:41,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:41,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:00:41,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:41,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:41,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:00:41,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:41,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:00:41,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:41,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-15 02:00:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:41,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:41,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:41,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:00:41,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:41,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:00:41,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:41,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:41,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:00:41,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:41,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:00:41,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:41,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-15 02:00:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:41,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:41,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:41,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:41,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 02:00:41,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:00:41,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-15 02:00:41,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:41,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:41,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-15 02:00:41,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:41,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 02:00:41,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:41,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:41,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:41,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:41,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:00:41,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:41,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:00:41,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:41,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:41,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:00:41,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:41,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:00:41,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:41,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 02:00:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:41,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:41,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:41,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:00:41,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:41,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:00:41,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:41,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:41,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:00:41,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:41,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:00:41,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:41,996 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 31 proven. 89 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-15 02:00:41,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [300719641] [2020-10-15 02:00:41,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:00:41,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-15 02:00:41,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232702179] [2020-10-15 02:00:41,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-15 02:00:41,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:00:41,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-15 02:00:41,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:00:41,999 INFO L87 Difference]: Start difference. First operand 50 states and 62 transitions. Second operand 20 states. [2020-10-15 02:00:42,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:00:42,361 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2020-10-15 02:00:42,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:00:42,362 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 69 [2020-10-15 02:00:42,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:00:42,363 INFO L225 Difference]: With dead ends: 50 [2020-10-15 02:00:42,363 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 02:00:42,364 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=636, Unknown=0, NotChecked=0, Total=756 [2020-10-15 02:00:42,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 02:00:42,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 02:00:42,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 02:00:42,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 02:00:42,365 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2020-10-15 02:00:42,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:00:42,366 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 02:00:42,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-15 02:00:42,366 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 02:00:42,366 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 02:00:42,366 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 02:00:42,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-15 02:00:42,789 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 16 [2020-10-15 02:00:42,794 INFO L268 CegarLoopResult]: For program point fibonacciFINAL(lines 14 22) no Hoare annotation was computed. [2020-10-15 02:00:42,795 INFO L271 CegarLoopResult]: At program point fibonacciENTRY(lines 14 22) the Hoare annotation is: true [2020-10-15 02:00:42,795 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (and (= fibonacci_~n |fibonacci_#in~n|) (<= 2 |fibonacci_#in~n|)) [2020-10-15 02:00:42,795 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-10-15 02:00:42,798 INFO L264 CegarLoopResult]: At program point L20-2(line 20) the Hoare annotation is: (let ((.cse0 (= fibonacci_~n |fibonacci_#in~n|))) (or (and (<= 4 fibonacci_~n) .cse0 (<= 2 |fibonacci_#t~ret0|)) (and (= |fibonacci_#t~ret0| 1) .cse0 (<= fibonacci_~n 3) (<= 2 |fibonacci_#in~n|)))) [2020-10-15 02:00:42,798 INFO L268 CegarLoopResult]: For program point fibonacciEXIT(lines 14 22) no Hoare annotation was computed. [2020-10-15 02:00:42,798 INFO L268 CegarLoopResult]: For program point L17(lines 17 21) no Hoare annotation was computed. [2020-10-15 02:00:42,798 INFO L268 CegarLoopResult]: For program point L20-3(line 20) no Hoare annotation was computed. [2020-10-15 02:00:42,798 INFO L268 CegarLoopResult]: For program point L15(lines 15 21) no Hoare annotation was computed. [2020-10-15 02:00:42,798 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-10-15 02:00:42,799 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-15 02:00:42,799 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-15 02:00:42,799 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-15 02:00:42,799 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-15 02:00:42,799 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-15 02:00:42,799 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 34) no Hoare annotation was computed. [2020-10-15 02:00:42,799 INFO L268 CegarLoopResult]: For program point L31(lines 31 35) no Hoare annotation was computed. [2020-10-15 02:00:42,800 INFO L271 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: true [2020-10-15 02:00:42,800 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 25 36) the Hoare annotation is: true [2020-10-15 02:00:42,800 INFO L268 CegarLoopResult]: For program point L30-1(line 30) no Hoare annotation was computed. [2020-10-15 02:00:42,800 INFO L268 CegarLoopResult]: For program point L27(lines 27 29) no Hoare annotation was computed. [2020-10-15 02:00:42,800 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 25 36) no Hoare annotation was computed. [2020-10-15 02:00:42,800 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 25 36) no Hoare annotation was computed. [2020-10-15 02:00:42,800 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-10-15 02:00:42,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 02:00:42 BoogieIcfgContainer [2020-10-15 02:00:42,812 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 02:00:42,817 INFO L168 Benchmark]: Toolchain (without parser) took 65692.94 ms. Allocated memory was 148.9 MB in the beginning and 824.2 MB in the end (delta: 675.3 MB). Free memory was 105.7 MB in the beginning and 307.7 MB in the end (delta: -202.0 MB). Peak memory consumption was 473.3 MB. Max. memory is 7.1 GB. [2020-10-15 02:00:42,819 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 123.0 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-15 02:00:42,821 INFO L168 Benchmark]: CACSL2BoogieTranslator took 203.83 ms. Allocated memory is still 148.9 MB. Free memory was 105.3 MB in the beginning and 96.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-10-15 02:00:42,822 INFO L168 Benchmark]: Boogie Preprocessor took 113.62 ms. Allocated memory was 148.9 MB in the beginning and 206.0 MB in the end (delta: 57.1 MB). Free memory was 96.0 MB in the beginning and 184.9 MB in the end (delta: -88.9 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-10-15 02:00:42,829 INFO L168 Benchmark]: RCFGBuilder took 231.85 ms. Allocated memory is still 206.0 MB. Free memory was 184.6 MB in the beginning and 172.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2020-10-15 02:00:42,830 INFO L168 Benchmark]: TraceAbstraction took 65139.09 ms. Allocated memory was 206.0 MB in the beginning and 824.2 MB in the end (delta: 618.1 MB). Free memory was 171.8 MB in the beginning and 307.7 MB in the end (delta: -135.9 MB). Peak memory consumption was 482.2 MB. Max. memory is 7.1 GB. [2020-10-15 02:00:42,838 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 123.0 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 203.83 ms. Allocated memory is still 148.9 MB. Free memory was 105.3 MB in the beginning and 96.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.62 ms. Allocated memory was 148.9 MB in the beginning and 206.0 MB in the end (delta: 57.1 MB). Free memory was 96.0 MB in the beginning and 184.9 MB in the end (delta: -88.9 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 231.85 ms. Allocated memory is still 206.0 MB. Free memory was 184.6 MB in the beginning and 172.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 65139.09 ms. Allocated memory was 206.0 MB in the beginning and 824.2 MB in the end (delta: 618.1 MB). Free memory was 171.8 MB in the beginning and 307.7 MB in the end (delta: -135.9 MB). Peak memory consumption was 482.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 34]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 64.6s, OverallIterations: 13, TraceHistogramMax: 11, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 223 SDtfs, 249 SDslu, 1054 SDs, 0 SdLazy, 1611 SolverSat, 286 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 400 GetRequests, 193 SyntacticMatches, 2 SemanticMatches, 205 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 80 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 104 PreInvPairs, 137 NumberOfFragments, 37 HoareAnnotationTreeSize, 104 FomulaSimplifications, 845 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 8 FomulaSimplificationsInter, 716 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 60.6s InterpolantComputationTime, 606 NumberOfCodeBlocks, 606 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 593 ConstructedInterpolants, 0 QuantifiedInterpolants, 75690 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 2 PerfectInterpolantSequences, 799/1220 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...