/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/Addition03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:43:10,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:43:10,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:43:11,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:43:11,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:43:11,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:43:11,024 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:43:11,026 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:43:11,028 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:43:11,029 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:43:11,031 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:43:11,032 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:43:11,032 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:43:11,034 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:43:11,035 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:43:11,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:43:11,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:43:11,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:43:11,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:43:11,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:43:11,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:43:11,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:43:11,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:43:11,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:43:11,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:43:11,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:43:11,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:43:11,053 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:43:11,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:43:11,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:43:11,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:43:11,056 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:43:11,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:43:11,058 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:43:11,059 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:43:11,059 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:43:11,060 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:43:11,060 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:43:11,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:43:11,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:43:11,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:43:11,064 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:43:11,103 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:43:11,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:43:11,108 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:43:11,109 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:43:11,109 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:43:11,109 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:43:11,110 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:43:11,113 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:43:11,113 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:43:11,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:43:11,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:43:11,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:43:11,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:43:11,114 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:43:11,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:43:11,115 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:43:11,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:43:11,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:43:11,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:43:11,115 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:43:11,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:43:11,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:43:11,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:43:11,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:43:11,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:43:11,118 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:43:11,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:43:11,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:43:11,119 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:43:11,119 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:43:11,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:43:11,664 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:43:11,673 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:43:11,675 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:43:11,676 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:43:11,678 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Addition03-1.c [2020-09-25 07:43:11,766 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5db199193/7bbfddcfec084b32aa227573c0e5e99e/FLAGa06ce3db6 [2020-09-25 07:43:12,348 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:43:12,349 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Addition03-1.c [2020-09-25 07:43:12,358 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5db199193/7bbfddcfec084b32aa227573c0e5e99e/FLAGa06ce3db6 [2020-09-25 07:43:12,695 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5db199193/7bbfddcfec084b32aa227573c0e5e99e [2020-09-25 07:43:12,710 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:43:12,717 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:43:12,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:43:12,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:43:12,726 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:43:12,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:43:12" (1/1) ... [2020-09-25 07:43:12,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12ae0820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:12, skipping insertion in model container [2020-09-25 07:43:12,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:43:12" (1/1) ... [2020-09-25 07:43:12,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:43:12,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:43:13,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:43:13,008 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:43:13,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:43:13,047 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:43:13,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:13 WrapperNode [2020-09-25 07:43:13,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:43:13,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:43:13,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:43:13,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:43:13,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:13" (1/1) ... [2020-09-25 07:43:13,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:13" (1/1) ... [2020-09-25 07:43:13,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:13" (1/1) ... [2020-09-25 07:43:13,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:13" (1/1) ... [2020-09-25 07:43:13,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:13" (1/1) ... [2020-09-25 07:43:13,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:13" (1/1) ... [2020-09-25 07:43:13,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:13" (1/1) ... [2020-09-25 07:43:13,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:43:13,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:43:13,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:43:13,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:43:13,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:13" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:43:13,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:43:13,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:43:13,244 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2020-09-25 07:43:13,244 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:43:13,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:43:13,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:43:13,244 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2020-09-25 07:43:13,245 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:43:13,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:43:13,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:43:13,478 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:43:13,478 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 07:43:13,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:43:13 BoogieIcfgContainer [2020-09-25 07:43:13,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:43:13,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:43:13,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:43:13,489 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:43:13,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:43:12" (1/3) ... [2020-09-25 07:43:13,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47823f2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:43:13, skipping insertion in model container [2020-09-25 07:43:13,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:13" (2/3) ... [2020-09-25 07:43:13,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47823f2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:43:13, skipping insertion in model container [2020-09-25 07:43:13,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:43:13" (3/3) ... [2020-09-25 07:43:13,494 INFO L109 eAbstractionObserver]: Analyzing ICFG Addition03-1.c [2020-09-25 07:43:13,507 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:43:13,518 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:43:13,542 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:43:13,583 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:43:13,583 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:43:13,583 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:43:13,583 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:43:13,583 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:43:13,584 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:43:13,584 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:43:13,584 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:43:13,618 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-09-25 07:43:13,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-25 07:43:13,630 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:13,632 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:13,633 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:13,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:13,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1218957033, now seen corresponding path program 1 times [2020-09-25 07:43:13,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:13,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [864015218] [2020-09-25 07:43:13,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:13,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:13,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:13,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:13,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 07:43:13,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:13,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-09-25 07:43:13,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:13,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:13,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:43:13,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 07:43:13,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 07:43:13,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:43:14,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:14,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:14,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:14,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:14,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:14,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:14,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:43:14,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:14,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:14,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:14,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:14,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:14,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:14,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:43:14,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:14,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:14,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:14,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:43:14,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:14,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 07:43:14,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:14,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:14,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:43:14,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:14,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:43:14,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:14,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:43:14,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [864015218] [2020-09-25 07:43:14,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:43:14,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:43:14,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576543792] [2020-09-25 07:43:14,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:43:14,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:14,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:43:14,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:43:14,213 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 5 states. [2020-09-25 07:43:14,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:14,361 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2020-09-25 07:43:14,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:43:14,364 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-09-25 07:43:14,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:14,378 INFO L225 Difference]: With dead ends: 53 [2020-09-25 07:43:14,379 INFO L226 Difference]: Without dead ends: 35 [2020-09-25 07:43:14,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:43:14,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-09-25 07:43:14,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-09-25 07:43:14,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-25 07:43:14,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2020-09-25 07:43:14,445 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 22 [2020-09-25 07:43:14,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:14,446 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2020-09-25 07:43:14,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:43:14,446 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2020-09-25 07:43:14,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 07:43:14,450 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:14,450 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:14,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:43:14,451 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:14,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:14,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1438677315, now seen corresponding path program 1 times [2020-09-25 07:43:14,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:14,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1882778464] [2020-09-25 07:43:14,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:14,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:14,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:14,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 07:43:14,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:14,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-09-25 07:43:14,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:14,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:14,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:43:14,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 07:43:14,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 07:43:14,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:14,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:14,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:14,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:14,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:14,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:14,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:43:14,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:14,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:14,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:14,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:14,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:14,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:14,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:43:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:14,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:14,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:14,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 07:43:14,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:14,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 07:43:14,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:14,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:14,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:43:14,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:14,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:43:14,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:14,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:14,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:14,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:14,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:43:14,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:14,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 07:43:14,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:14,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:14,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:43:14,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:14,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:43:14,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:14,921 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 07:43:14,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1882778464] [2020-09-25 07:43:14,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:43:14,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 07:43:14,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835172153] [2020-09-25 07:43:14,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:43:14,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:14,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:43:14,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:43:14,926 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand 6 states. [2020-09-25 07:43:15,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:15,044 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions. [2020-09-25 07:43:15,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 07:43:15,044 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-09-25 07:43:15,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:15,047 INFO L225 Difference]: With dead ends: 48 [2020-09-25 07:43:15,047 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 07:43:15,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:43:15,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 07:43:15,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2020-09-25 07:43:15,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-25 07:43:15,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2020-09-25 07:43:15,060 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 32 [2020-09-25 07:43:15,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:15,060 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2020-09-25 07:43:15,061 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:43:15,063 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2020-09-25 07:43:15,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 07:43:15,065 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:15,066 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:15,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:43:15,066 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:15,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:15,069 INFO L82 PathProgramCache]: Analyzing trace with hash -305631715, now seen corresponding path program 1 times [2020-09-25 07:43:15,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:15,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [674231752] [2020-09-25 07:43:15,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:15,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:15,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:15,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:15,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:15,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 07:43:15,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:43:15,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-09-25 07:43:15,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:15,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:15,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:43:15,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 07:43:15,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:43:15,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:43:15,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:15,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:15,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:15,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:15,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:15,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:43:15,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:15,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:15,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:15,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:15,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:15,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:15,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:43:15,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:15,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:15,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:15,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:15,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:43:15,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:43:15,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 07:43:15,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:15,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:15,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:43:15,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 07:43:15,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:43:15,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:15,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:15,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:15,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:15,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:15,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:15,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 07:43:15,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:43:15,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 07:43:15,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:15,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:15,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:43:15,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 07:43:15,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:43:15,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:15,675 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 07:43:15,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [674231752] [2020-09-25 07:43:15,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:43:15,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:43:15,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812469491] [2020-09-25 07:43:15,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:43:15,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:15,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:43:15,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:43:15,686 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 6 states. [2020-09-25 07:43:15,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:15,816 INFO L93 Difference]: Finished difference Result 60 states and 70 transitions. [2020-09-25 07:43:15,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:43:15,818 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-09-25 07:43:15,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:15,820 INFO L225 Difference]: With dead ends: 60 [2020-09-25 07:43:15,820 INFO L226 Difference]: Without dead ends: 35 [2020-09-25 07:43:15,821 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:43:15,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-09-25 07:43:15,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-09-25 07:43:15,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-25 07:43:15,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2020-09-25 07:43:15,836 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 33 [2020-09-25 07:43:15,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:15,836 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2020-09-25 07:43:15,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:43:15,838 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2020-09-25 07:43:15,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-25 07:43:15,843 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:15,843 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:15,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:43:15,845 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:15,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:15,846 INFO L82 PathProgramCache]: Analyzing trace with hash 967575145, now seen corresponding path program 2 times [2020-09-25 07:43:15,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:15,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [932651261] [2020-09-25 07:43:15,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:15,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:16,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:16,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 07:43:16,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:16,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-09-25 07:43:16,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:16,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:16,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:43:16,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 07:43:16,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 07:43:16,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:16,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:16,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:16,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:16,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:16,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:16,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:43:16,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:16,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:16,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:16,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:16,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:16,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:16,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:43:16,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:16,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:16,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:16,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 07:43:16,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:16,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 07:43:16,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:16,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:16,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:43:16,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:16,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 07:43:16,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:16,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:16,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:16,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:16,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 07:43:16,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:16,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 07:43:16,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:16,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:16,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:43:16,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:16,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:43:16,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:16,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:16,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:16,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:16,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:16,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:43:16,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:16,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 07:43:16,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:16,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:16,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:43:16,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:16,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:43:16,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:16,426 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 07:43:16,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [932651261] [2020-09-25 07:43:16,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:43:16,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 07:43:16,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9744563] [2020-09-25 07:43:16,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:43:16,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:16,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:43:16,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:43:16,432 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 8 states. [2020-09-25 07:43:16,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:16,545 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-09-25 07:43:16,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:43:16,547 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2020-09-25 07:43:16,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:16,549 INFO L225 Difference]: With dead ends: 46 [2020-09-25 07:43:16,549 INFO L226 Difference]: Without dead ends: 40 [2020-09-25 07:43:16,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:43:16,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-25 07:43:16,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-09-25 07:43:16,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-25 07:43:16,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2020-09-25 07:43:16,566 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 42 [2020-09-25 07:43:16,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:16,569 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2020-09-25 07:43:16,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:43:16,569 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2020-09-25 07:43:16,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-25 07:43:16,571 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:16,571 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:16,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:43:16,572 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:16,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:16,574 INFO L82 PathProgramCache]: Analyzing trace with hash -321617853, now seen corresponding path program 3 times [2020-09-25 07:43:16,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:16,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957059957] [2020-09-25 07:43:16,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:16,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:16,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:16,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 07:43:16,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:16,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-25 07:43:16,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:16,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:16,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:43:16,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 07:43:16,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 07:43:16,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:16,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:16,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:16,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:16,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:16,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:16,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:16,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:43:16,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:16,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:16,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:16,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:16,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:16,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:16,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:43:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:16,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:17,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:17,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 07:43:17,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:17,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-25 07:43:17,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:17,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:17,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:43:17,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:17,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 07:43:17,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:17,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:17,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:17,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:17,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:17,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 07:43:17,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:17,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-25 07:43:17,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:17,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:17,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 07:43:17,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:17,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 07:43:17,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:17,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:17,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:17,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:17,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 07:43:17,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:17,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 07:43:17,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:17,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:17,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:43:17,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:17,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:43:17,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:43:17,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:17,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:17,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:17,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:17,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:43:17,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:17,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:43:17,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:17,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:17,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:43:17,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:17,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:43:17,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:17,376 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 2 proven. 30 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-25 07:43:17,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [957059957] [2020-09-25 07:43:17,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:43:17,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 07:43:17,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651629405] [2020-09-25 07:43:17,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:43:17,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:17,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:43:17,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:43:17,380 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 10 states. [2020-09-25 07:43:17,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:17,481 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2020-09-25 07:43:17,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 07:43:17,481 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 52 [2020-09-25 07:43:17,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:17,483 INFO L225 Difference]: With dead ends: 51 [2020-09-25 07:43:17,483 INFO L226 Difference]: Without dead ends: 45 [2020-09-25 07:43:17,484 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-09-25 07:43:17,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-25 07:43:17,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-09-25 07:43:17,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-25 07:43:17,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2020-09-25 07:43:17,492 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 52 [2020-09-25 07:43:17,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:17,492 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2020-09-25 07:43:17,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:43:17,492 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2020-09-25 07:43:17,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 07:43:17,494 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:17,494 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:17,494 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:43:17,494 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:17,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:17,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1776668137, now seen corresponding path program 4 times [2020-09-25 07:43:17,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:17,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1004819594] [2020-09-25 07:43:17,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:17,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:17,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:17,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 07:43:17,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:17,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 399 [2020-09-25 07:43:17,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:17,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:17,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 07:43:17,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 07:43:17,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 07:43:17,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:17,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:17,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:17,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:17,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:17,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:17,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:17,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:43:17,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:17,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:17,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:17,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:17,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:17,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:17,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:43:17,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:17,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:18,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:18,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 07:43:18,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:18,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-09-25 07:43:18,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:18,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:18,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 07:43:18,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:18,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 07:43:18,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:18,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:18,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:18,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:18,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 07:43:18,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:18,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-25 07:43:18,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:18,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:18,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 07:43:18,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:18,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 07:43:18,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:43:18,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:18,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:18,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:18,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 07:43:18,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:18,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-25 07:43:18,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:18,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:18,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 07:43:18,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:18,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 07:43:18,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:43:18,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:18,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:18,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:18,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:18,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 07:43:18,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:18,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 07:43:18,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:18,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:18,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:43:18,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:18,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:43:18,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:43:18,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:18,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:18,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:18,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:18,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:43:18,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:18,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 07:43:18,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:18,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:18,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:43:18,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:18,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:43:18,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:43:18,989 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 12 proven. 38 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-09-25 07:43:18,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1004819594] [2020-09-25 07:43:18,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:43:18,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 07:43:18,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66176588] [2020-09-25 07:43:18,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:43:18,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:18,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:43:18,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:43:18,995 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 10 states. [2020-09-25 07:43:19,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:19,168 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2020-09-25 07:43:19,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 07:43:19,169 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 62 [2020-09-25 07:43:19,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:19,171 INFO L225 Difference]: With dead ends: 56 [2020-09-25 07:43:19,171 INFO L226 Difference]: Without dead ends: 50 [2020-09-25 07:43:19,175 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-25 07:43:19,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-25 07:43:19,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-09-25 07:43:19,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 07:43:19,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-09-25 07:43:19,193 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 62 [2020-09-25 07:43:19,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:19,196 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-09-25 07:43:19,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:43:19,199 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-09-25 07:43:19,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 07:43:19,200 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:19,201 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:19,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:43:19,202 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:19,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:19,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1043024061, now seen corresponding path program 5 times [2020-09-25 07:43:19,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:19,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1949167063] [2020-09-25 07:43:19,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:19,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:19,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:19,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 07:43:19,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:19,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 452 [2020-09-25 07:43:19,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:19,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:19,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 07:43:19,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 07:43:19,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 07:43:19,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:19,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:19,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:19,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:19,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:19,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:19,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:19,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:43:19,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:19,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:19,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:19,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:19,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:19,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:19,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:43:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:19,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:20,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:20,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 07:43:20,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:20,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-09-25 07:43:20,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:20,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:20,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 07:43:20,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:20,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 07:43:20,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:20,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:20,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:20,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:20,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 07:43:20,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:20,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-09-25 07:43:20,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:20,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:20,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 07:43:20,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:20,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 07:43:20,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:20,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:20,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:20,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:20,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:20,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 07:43:20,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:20,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-09-25 07:43:20,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:20,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:20,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 07:43:20,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:20,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 07:43:20,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:20,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:20,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:20,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:20,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:20,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 07:43:20,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:20,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 07:43:20,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:20,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:20,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 07:43:20,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:20,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 07:43:20,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:20,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:20,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:20,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:20,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:20,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 07:43:20,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:20,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 07:43:20,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:20,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:20,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:43:20,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:20,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:43:20,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:20,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:20,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:20,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:20,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:20,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:43:20,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:20,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:43:20,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:20,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:20,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:43:20,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:20,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:43:20,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:20,929 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 4 proven. 69 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-09-25 07:43:20,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1949167063] [2020-09-25 07:43:20,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:43:20,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 07:43:20,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505229416] [2020-09-25 07:43:20,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 07:43:20,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:20,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 07:43:20,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:43:20,932 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 11 states. [2020-09-25 07:43:21,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:21,050 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-09-25 07:43:21,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 07:43:21,051 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 72 [2020-09-25 07:43:21,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:21,053 INFO L225 Difference]: With dead ends: 61 [2020-09-25 07:43:21,053 INFO L226 Difference]: Without dead ends: 55 [2020-09-25 07:43:21,054 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2020-09-25 07:43:21,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-25 07:43:21,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-09-25 07:43:21,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-25 07:43:21,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2020-09-25 07:43:21,061 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 72 [2020-09-25 07:43:21,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:21,061 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2020-09-25 07:43:21,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 07:43:21,062 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2020-09-25 07:43:21,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-25 07:43:21,063 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:21,063 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:21,063 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 07:43:21,064 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:21,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:21,064 INFO L82 PathProgramCache]: Analyzing trace with hash -473356951, now seen corresponding path program 6 times [2020-09-25 07:43:21,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:21,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1666466441] [2020-09-25 07:43:21,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:21,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:21,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:21,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:21,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-09-25 07:43:21,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:21,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 529 [2020-09-25 07:43:21,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:21,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:21,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 07:43:21,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 07:43:21,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-25 07:43:21,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:21,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:21,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:21,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:21,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:21,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:21,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:43:21,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:21,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:21,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:21,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:21,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:21,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:21,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:43:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:21,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:22,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:22,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 07:43:22,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:22,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 419 [2020-09-25 07:43:22,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:22,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:22,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 07:43:22,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:22,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 07:43:22,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:22,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:22,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:22,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:22,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 07:43:22,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:22,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-09-25 07:43:22,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:22,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:22,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 07:43:22,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:22,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 07:43:22,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:22,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:22,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:22,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:22,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 07:43:22,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:22,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-09-25 07:43:22,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:22,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:22,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 07:43:22,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:22,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 07:43:22,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:22,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:22,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:22,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:22,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 07:43:22,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:22,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-25 07:43:22,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:22,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:22,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 07:43:22,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:22,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 07:43:22,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:22,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:22,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:23,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:23,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 07:43:23,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:23,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 07:43:23,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:23,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:23,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 07:43:23,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:23,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 07:43:23,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:23,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:23,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:23,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:23,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 07:43:23,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:23,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 07:43:23,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:23,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:23,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:43:23,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:23,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:43:23,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:23,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:23,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:23,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:23,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:43:23,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:23,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:43:23,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:23,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:23,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:43:23,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:23,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:43:23,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:23,244 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 20 proven. 93 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-09-25 07:43:23,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1666466441] [2020-09-25 07:43:23,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:43:23,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 07:43:23,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304237422] [2020-09-25 07:43:23,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 07:43:23,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:23,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 07:43:23,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-25 07:43:23,247 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand 12 states. [2020-09-25 07:43:23,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:23,380 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions. [2020-09-25 07:43:23,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:43:23,380 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 82 [2020-09-25 07:43:23,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:23,382 INFO L225 Difference]: With dead ends: 66 [2020-09-25 07:43:23,382 INFO L226 Difference]: Without dead ends: 60 [2020-09-25 07:43:23,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=222, Unknown=0, NotChecked=0, Total=342 [2020-09-25 07:43:23,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-25 07:43:23,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-09-25 07:43:23,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-09-25 07:43:23,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2020-09-25 07:43:23,390 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 82 [2020-09-25 07:43:23,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:23,391 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2020-09-25 07:43:23,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 07:43:23,391 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2020-09-25 07:43:23,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-09-25 07:43:23,392 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:23,393 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:23,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 07:43:23,393 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:23,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:23,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1366105667, now seen corresponding path program 7 times [2020-09-25 07:43:23,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:23,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1891571233] [2020-09-25 07:43:23,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:23,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:23,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:24,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:24,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 07:43:24,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:24,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 637 [2020-09-25 07:43:24,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:24,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:24,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 07:43:24,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 07:43:24,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 07:43:24,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:24,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:24,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:24,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:24,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:24,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:24,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:43:24,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:24,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:24,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:24,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:24,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:24,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:24,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:43:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:24,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:24,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:24,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 07:43:24,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:24,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 534 [2020-09-25 07:43:24,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:24,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:24,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 07:43:24,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:24,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 07:43:24,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:24,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:24,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:24,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:25,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:25,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 07:43:25,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:25,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 409 [2020-09-25 07:43:25,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:25,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:25,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 07:43:25,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:25,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 07:43:25,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:25,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:25,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:25,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:25,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:25,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 07:43:25,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:25,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-09-25 07:43:25,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:25,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:25,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 07:43:25,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:25,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 07:43:25,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:25,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:25,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:25,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:25,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:25,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 07:43:25,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:25,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-25 07:43:25,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:25,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:25,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 07:43:25,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:25,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 07:43:25,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:25,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:25,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:25,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:25,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 07:43:25,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:25,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-09-25 07:43:25,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:25,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:25,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 07:43:25,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:25,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 07:43:25,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:25,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:26,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:26,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:26,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 07:43:26,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:26,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 07:43:26,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:26,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:26,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 07:43:26,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:26,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 07:43:26,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:26,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:26,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:26,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:26,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 07:43:26,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:26,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 07:43:26,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:26,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:26,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:43:26,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:26,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:43:26,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:26,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:26,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:26,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:26,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:43:26,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:26,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:43:26,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:26,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:26,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:43:26,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:26,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:43:26,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:26,271 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 12 proven. 131 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-09-25 07:43:26,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1891571233] [2020-09-25 07:43:26,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:43:26,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 07:43:26,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021332036] [2020-09-25 07:43:26,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 07:43:26,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:26,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 07:43:26,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:43:26,279 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 13 states. [2020-09-25 07:43:26,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:26,476 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2020-09-25 07:43:26,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 07:43:26,477 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 92 [2020-09-25 07:43:26,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:26,478 INFO L225 Difference]: With dead ends: 71 [2020-09-25 07:43:26,479 INFO L226 Difference]: Without dead ends: 65 [2020-09-25 07:43:26,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-09-25 07:43:26,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-09-25 07:43:26,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-09-25 07:43:26,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-09-25 07:43:26,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2020-09-25 07:43:26,502 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 92 [2020-09-25 07:43:26,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:26,505 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2020-09-25 07:43:26,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 07:43:26,506 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2020-09-25 07:43:26,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-09-25 07:43:26,507 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:26,507 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:26,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 07:43:26,507 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:26,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:26,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1932915479, now seen corresponding path program 8 times [2020-09-25 07:43:26,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:26,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1344753555] [2020-09-25 07:43:26,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:26,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:26,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:27,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:27,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-09-25 07:43:27,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:27,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 761 [2020-09-25 07:43:27,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:27,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:27,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 07:43:27,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 07:43:27,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 07:43:27,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:27,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:27,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:27,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:27,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:27,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:27,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:43:27,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:27,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:27,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:27,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:27,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:27,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:27,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:43:27,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:27,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:27,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:27,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-25 07:43:27,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:27,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 565 [2020-09-25 07:43:27,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:27,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:27,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 07:43:27,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:27,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 07:43:27,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:27,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:27,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:27,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:28,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:28,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 07:43:28,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:28,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 496 [2020-09-25 07:43:28,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:28,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:28,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 07:43:28,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:28,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 07:43:28,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:28,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:28,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:28,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:28,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:28,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 07:43:28,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:28,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 375 [2020-09-25 07:43:28,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:28,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:28,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 07:43:28,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:28,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 07:43:28,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:28,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:28,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:28,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:29,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:29,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 07:43:29,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:29,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-09-25 07:43:29,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:29,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:29,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 07:43:29,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:29,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 07:43:29,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:29,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:29,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:29,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:29,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 07:43:29,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:29,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-09-25 07:43:29,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:29,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:29,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 07:43:29,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:29,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 07:43:29,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:29,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:29,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:29,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:29,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:29,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 07:43:29,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:29,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-09-25 07:43:29,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:29,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:29,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 07:43:29,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:29,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 07:43:29,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:43:29,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:29,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:29,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:29,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:29,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 07:43:29,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:29,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 07:43:29,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:29,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:29,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 07:43:29,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:29,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 07:43:29,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:43:29,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:29,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:29,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:29,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:29,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 07:43:29,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:29,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 07:43:29,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:29,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:29,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:43:29,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:29,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:43:29,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:43:29,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:29,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:29,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:29,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:43:29,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:29,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:43:29,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:29,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:29,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:43:29,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:29,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:43:29,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:30,048 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 178 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2020-09-25 07:43:30,048 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1344753555] [2020-09-25 07:43:30,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:43:30,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 07:43:30,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633520805] [2020-09-25 07:43:30,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 07:43:30,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:30,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 07:43:30,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-09-25 07:43:30,052 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand 14 states. [2020-09-25 07:43:30,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:30,244 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-09-25 07:43:30,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 07:43:30,245 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 102 [2020-09-25 07:43:30,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:30,246 INFO L225 Difference]: With dead ends: 76 [2020-09-25 07:43:30,246 INFO L226 Difference]: Without dead ends: 70 [2020-09-25 07:43:30,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=327, Unknown=0, NotChecked=0, Total=506 [2020-09-25 07:43:30,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-25 07:43:30,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-09-25 07:43:30,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-25 07:43:30,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2020-09-25 07:43:30,259 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 102 [2020-09-25 07:43:30,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:30,259 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2020-09-25 07:43:30,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 07:43:30,259 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2020-09-25 07:43:30,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-25 07:43:30,260 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:30,261 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:30,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 07:43:30,261 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:30,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:30,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1924549309, now seen corresponding path program 9 times [2020-09-25 07:43:30,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:30,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1813315405] [2020-09-25 07:43:30,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:30,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:30,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:31,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:31,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-09-25 07:43:31,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:31,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 809 [2020-09-25 07:43:31,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:31,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:31,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 07:43:31,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 07:43:31,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-09-25 07:43:31,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:31,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:31,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:31,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:31,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:31,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:31,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:43:31,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:31,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:31,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:31,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:31,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:31,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:31,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:43:31,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:31,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:31,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:31,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-25 07:43:31,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:31,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 720 [2020-09-25 07:43:31,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:31,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:31,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 07:43:31,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:31,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 07:43:31,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:31,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:31,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:32,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:32,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-25 07:43:32,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:32,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 678 [2020-09-25 07:43:32,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:32,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:32,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 07:43:32,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:32,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 07:43:32,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:32,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:32,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:33,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:33,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 07:43:33,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:33,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 492 [2020-09-25 07:43:33,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:33,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:33,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 07:43:33,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:33,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 07:43:33,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:33,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:33,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:33,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:33,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:33,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 07:43:33,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:33,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 382 [2020-09-25 07:43:33,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:33,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:33,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 07:43:33,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:33,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 07:43:33,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:33,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:33,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:33,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:33,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 07:43:33,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:33,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-09-25 07:43:33,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:33,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:33,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 07:43:33,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:33,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 07:43:33,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:33,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:33,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:33,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:34,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:34,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 07:43:34,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:34,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-09-25 07:43:34,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:34,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:34,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 07:43:34,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:34,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 07:43:34,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:34,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:34,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:34,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:34,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:34,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 07:43:34,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:34,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-25 07:43:34,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:34,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:34,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 07:43:34,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:34,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 07:43:34,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:34,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:34,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:34,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:34,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:34,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 07:43:34,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:34,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 07:43:34,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:34,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:34,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 07:43:34,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:34,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 07:43:34,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:34,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:34,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:34,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:34,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:34,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 07:43:34,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:34,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 07:43:34,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:34,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:34,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:43:34,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:34,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:43:34,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:34,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:34,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:34,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:34,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:43:34,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:34,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:43:34,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:34,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:34,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:43:34,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:34,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:43:34,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:34,554 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 30 proven. 225 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2020-09-25 07:43:34,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1813315405] [2020-09-25 07:43:34,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:43:34,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 07:43:34,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833000413] [2020-09-25 07:43:34,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 07:43:34,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:34,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 07:43:34,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-25 07:43:34,557 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand 15 states. [2020-09-25 07:43:34,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:34,725 INFO L93 Difference]: Finished difference Result 81 states and 82 transitions. [2020-09-25 07:43:34,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 07:43:34,725 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 112 [2020-09-25 07:43:34,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:34,727 INFO L225 Difference]: With dead ends: 81 [2020-09-25 07:43:34,727 INFO L226 Difference]: Without dead ends: 75 [2020-09-25 07:43:34,728 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2020-09-25 07:43:34,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-09-25 07:43:34,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-09-25 07:43:34,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-25 07:43:34,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 76 transitions. [2020-09-25 07:43:34,734 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 76 transitions. Word has length 112 [2020-09-25 07:43:34,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:34,734 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 76 transitions. [2020-09-25 07:43:34,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 07:43:34,734 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 76 transitions. [2020-09-25 07:43:34,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-09-25 07:43:34,736 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:34,736 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:34,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 07:43:34,736 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:34,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:34,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1700562025, now seen corresponding path program 10 times [2020-09-25 07:43:34,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:34,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1725940286] [2020-09-25 07:43:34,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:34,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:35,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:35,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 07:43:35,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:35,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 882 [2020-09-25 07:43:35,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:35,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:35,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 07:43:35,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 07:43:35,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-09-25 07:43:35,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:35,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:35,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:35,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:35,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:35,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:35,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:35,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:43:35,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:35,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:35,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:35,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:35,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:35,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:35,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:43:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:35,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:36,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:36,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-25 07:43:36,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:36,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 792 [2020-09-25 07:43:36,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:36,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:36,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 07:43:36,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:36,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-25 07:43:36,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:36,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:36,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:37,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:37,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-25 07:43:37,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:37,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 666 [2020-09-25 07:43:37,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:37,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:37,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 07:43:37,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:37,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 07:43:37,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:37,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:37,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:37,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:37,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:37,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-25 07:43:37,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:37,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 570 [2020-09-25 07:43:37,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:37,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:37,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 07:43:37,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:37,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 07:43:37,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:37,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:37,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:38,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:38,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 07:43:38,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:38,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 385 [2020-09-25 07:43:38,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:38,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:38,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 07:43:38,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:38,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 07:43:38,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:38,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:38,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:38,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:38,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 07:43:38,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:38,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 312 [2020-09-25 07:43:38,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:38,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:38,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 07:43:38,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:38,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 07:43:38,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:38,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:38,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:38,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:38,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 07:43:38,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:38,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-09-25 07:43:38,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:38,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:38,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 07:43:38,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:38,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 07:43:38,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:43:38,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:38,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:38,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:39,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:39,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 07:43:39,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:39,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-25 07:43:39,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:39,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:39,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 07:43:39,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:39,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 07:43:39,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:39,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:39,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:39,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:39,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 07:43:39,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:39,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-09-25 07:43:39,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:39,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:39,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 07:43:39,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:39,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 07:43:39,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:43:39,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:39,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:39,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:39,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 07:43:39,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:39,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 07:43:39,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:39,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:39,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 07:43:39,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:39,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 07:43:39,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:43:39,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:39,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:39,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:39,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:39,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 07:43:39,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:39,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 07:43:39,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:39,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:39,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:43:39,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:39,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:43:39,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:39,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:39,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:39,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:39,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:43:39,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:39,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:43:39,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:39,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:39,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:43:39,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:39,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:43:39,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:39,729 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 17 proven. 284 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2020-09-25 07:43:39,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1725940286] [2020-09-25 07:43:39,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:43:39,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 07:43:39,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983171348] [2020-09-25 07:43:39,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 07:43:39,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:39,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 07:43:39,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-09-25 07:43:39,732 INFO L87 Difference]: Start difference. First operand 75 states and 76 transitions. Second operand 16 states. [2020-09-25 07:43:39,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:39,913 INFO L93 Difference]: Finished difference Result 86 states and 87 transitions. [2020-09-25 07:43:39,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 07:43:39,914 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 122 [2020-09-25 07:43:39,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:39,915 INFO L225 Difference]: With dead ends: 86 [2020-09-25 07:43:39,915 INFO L226 Difference]: Without dead ends: 80 [2020-09-25 07:43:39,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=250, Invalid=452, Unknown=0, NotChecked=0, Total=702 [2020-09-25 07:43:39,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-25 07:43:39,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-09-25 07:43:39,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-09-25 07:43:39,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 81 transitions. [2020-09-25 07:43:39,926 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 81 transitions. Word has length 122 [2020-09-25 07:43:39,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:39,926 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 81 transitions. [2020-09-25 07:43:39,927 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 07:43:39,929 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 81 transitions. [2020-09-25 07:43:39,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-25 07:43:39,930 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:39,930 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:39,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 07:43:39,931 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:39,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:39,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1676247997, now seen corresponding path program 11 times [2020-09-25 07:43:39,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:39,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [810727643] [2020-09-25 07:43:39,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:39,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:39,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:40,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:40,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-09-25 07:43:40,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:40,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 925 [2020-09-25 07:43:40,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:40,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:40,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 07:43:40,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 07:43:40,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-09-25 07:43:40,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:40,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:40,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:40,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:40,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:40,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:40,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:43:40,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:40,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:40,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:40,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:40,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:40,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:40,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:43:40,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:40,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:41,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:41,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-25 07:43:41,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:41,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 804 [2020-09-25 07:43:41,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:41,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:41,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 07:43:41,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:41,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-25 07:43:41,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:41,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:41,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:42,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:42,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-25 07:43:42,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:42,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 974 [2020-09-25 07:43:42,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:42,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:42,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 07:43:42,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:42,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-25 07:43:42,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:42,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:42,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:42,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:43,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:43,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-25 07:43:43,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:43,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 791 [2020-09-25 07:43:43,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:43,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:43,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 07:43:43,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:43,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 07:43:43,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:43,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:43,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:43,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:44,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:44,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-25 07:43:44,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:44,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 538 [2020-09-25 07:43:44,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:44,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:44,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 07:43:44,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:44,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 07:43:44,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:44,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:44,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:44,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:44,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 07:43:44,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:44,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 462 [2020-09-25 07:43:44,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:44,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:44,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 07:43:44,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:44,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 07:43:44,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:44,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:44,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:44,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:45,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:45,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 07:43:45,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:45,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 398 [2020-09-25 07:43:45,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:45,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:45,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 07:43:45,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:45,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 07:43:45,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:43:45,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:45,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:45,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:45,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:45,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 07:43:45,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:45,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-09-25 07:43:45,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:45,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:45,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 07:43:45,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:45,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 07:43:45,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:45,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:45,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:45,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:45,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 07:43:45,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:45,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-09-25 07:43:45,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:45,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:45,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 07:43:45,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:45,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 07:43:45,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:45,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:45,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:45,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:45,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 07:43:45,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:45,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-25 07:43:45,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:45,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:45,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 07:43:45,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:45,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 07:43:45,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:45,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:45,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:45,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:45,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:45,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 07:43:45,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:45,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 07:43:45,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:45,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:45,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 07:43:45,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:45,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 07:43:45,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:45,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:45,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:45,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:46,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:46,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 07:43:46,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:46,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 07:43:46,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:46,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:46,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:43:46,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:46,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:43:46,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:46,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:46,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:46,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:46,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:43:46,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:46,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:43:46,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:46,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:46,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:43:46,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:46,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:43:46,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:46,126 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 18 proven. 342 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-09-25 07:43:46,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [810727643] [2020-09-25 07:43:46,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:43:46,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 07:43:46,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279745422] [2020-09-25 07:43:46,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 07:43:46,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:46,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 07:43:46,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-09-25 07:43:46,129 INFO L87 Difference]: Start difference. First operand 80 states and 81 transitions. Second operand 17 states. [2020-09-25 07:43:46,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:46,339 INFO L93 Difference]: Finished difference Result 91 states and 92 transitions. [2020-09-25 07:43:46,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 07:43:46,339 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 132 [2020-09-25 07:43:46,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:46,340 INFO L225 Difference]: With dead ends: 91 [2020-09-25 07:43:46,341 INFO L226 Difference]: Without dead ends: 85 [2020-09-25 07:43:46,342 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2020-09-25 07:43:46,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-09-25 07:43:46,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-09-25 07:43:46,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-25 07:43:46,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 86 transitions. [2020-09-25 07:43:46,347 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 86 transitions. Word has length 132 [2020-09-25 07:43:46,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:46,348 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 86 transitions. [2020-09-25 07:43:46,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 07:43:46,348 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 86 transitions. [2020-09-25 07:43:46,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 07:43:46,350 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:46,350 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:46,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 07:43:46,350 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:46,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:46,351 INFO L82 PathProgramCache]: Analyzing trace with hash -923497495, now seen corresponding path program 12 times [2020-09-25 07:43:46,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:46,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [680415611] [2020-09-25 07:43:46,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:46,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:46,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:47,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:47,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-09-25 07:43:47,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:47,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1077 [2020-09-25 07:43:47,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:47,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:47,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 07:43:47,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 07:43:47,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-09-25 07:43:47,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:47,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:47,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:47,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:47,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:47,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:47,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:43:47,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:47,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:47,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:47,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:47,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:47,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:47,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:43:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:47,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:48,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:48,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-25 07:43:48,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:48,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 959 [2020-09-25 07:43:48,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:48,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:48,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 07:43:48,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:48,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-09-25 07:43:48,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:48,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:48,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:48,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:49,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:49,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-25 07:43:49,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:49,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 841 [2020-09-25 07:43:49,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:49,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:49,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 07:43:49,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:49,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-25 07:43:49,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:49,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:49,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:50,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:50,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-25 07:43:50,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:50,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 714 [2020-09-25 07:43:50,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:50,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:50,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 07:43:50,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:50,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-25 07:43:50,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:50,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:50,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:50,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:50,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-25 07:43:50,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:50,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 592 [2020-09-25 07:43:50,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:50,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:50,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 07:43:50,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:50,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 07:43:50,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:50,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:50,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:50,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:51,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:51,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-25 07:43:51,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:51,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 470 [2020-09-25 07:43:51,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:51,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:51,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 07:43:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 07:43:51,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:51,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:51,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:51,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:51,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 07:43:51,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:51,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-09-25 07:43:51,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:51,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:51,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 07:43:51,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:51,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 07:43:51,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:51,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:51,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:51,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:51,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:51,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 07:43:52,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:52,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-09-25 07:43:52,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:52,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:52,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 07:43:52,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:52,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 07:43:52,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:52,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:52,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:52,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:52,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:52,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 07:43:52,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:52,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-25 07:43:52,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:52,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:52,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 07:43:52,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:52,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 07:43:52,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:52,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:52,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:52,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:52,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:52,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 07:43:52,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:52,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-09-25 07:43:52,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:52,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:52,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 07:43:52,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:52,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 07:43:52,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:52,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:52,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:52,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:52,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 07:43:52,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:52,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 07:43:52,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:52,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:52,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 07:43:52,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:52,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 07:43:52,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:52,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:52,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:52,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:52,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 07:43:52,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:52,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 07:43:52,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:52,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:52,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 07:43:52,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:52,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 07:43:52,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:52,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:52,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:52,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:52,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:52,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 07:43:52,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:52,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 07:43:52,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:52,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:52,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:43:52,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:52,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:43:52,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:52,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:52,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:52,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:52,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:52,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:43:52,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:52,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:43:52,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:52,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:52,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:43:52,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:52,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:43:52,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:52,904 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 61 proven. 405 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2020-09-25 07:43:52,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [680415611] [2020-09-25 07:43:52,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:43:52,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-25 07:43:52,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067725297] [2020-09-25 07:43:52,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-25 07:43:52,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:52,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-25 07:43:52,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306 [2020-09-25 07:43:52,906 INFO L87 Difference]: Start difference. First operand 85 states and 86 transitions. Second operand 18 states. [2020-09-25 07:43:53,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:53,149 INFO L93 Difference]: Finished difference Result 96 states and 97 transitions. [2020-09-25 07:43:53,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 07:43:53,150 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 142 [2020-09-25 07:43:53,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:53,151 INFO L225 Difference]: With dead ends: 96 [2020-09-25 07:43:53,151 INFO L226 Difference]: Without dead ends: 90 [2020-09-25 07:43:53,152 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=597, Unknown=0, NotChecked=0, Total=930 [2020-09-25 07:43:53,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-09-25 07:43:53,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-09-25 07:43:53,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-09-25 07:43:53,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 91 transitions. [2020-09-25 07:43:53,163 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 91 transitions. Word has length 142 [2020-09-25 07:43:53,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:53,164 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 91 transitions. [2020-09-25 07:43:53,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-25 07:43:53,164 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 91 transitions. [2020-09-25 07:43:53,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-25 07:43:53,166 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:53,166 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:53,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 07:43:53,166 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:53,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:53,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1719700669, now seen corresponding path program 13 times [2020-09-25 07:43:53,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:53,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [485391287] [2020-09-25 07:43:53,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:53,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:53,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:54,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:54,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 07:43:54,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:54,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1424 [2020-09-25 07:43:54,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:54,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:54,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-25 07:43:54,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 07:43:54,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-09-25 07:43:54,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:54,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:54,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:54,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:54,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:54,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:54,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:54,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:43:54,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:54,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:54,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:54,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:54,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:54,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:54,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:43:54,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:54,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:55,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:55,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-09-25 07:43:55,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:55,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1055 [2020-09-25 07:43:55,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:55,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:55,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-25 07:43:55,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:55,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-09-25 07:43:55,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:55,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:55,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:55,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:56,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:56,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-25 07:43:56,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:56,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 934 [2020-09-25 07:43:56,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:56,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:56,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 07:43:56,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:56,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-09-25 07:43:56,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:56,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:56,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:56,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:57,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:57,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-25 07:43:57,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:57,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 831 [2020-09-25 07:43:57,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:57,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:57,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 07:43:57,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:57,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-25 07:43:57,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:57,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:57,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:58,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:58,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-25 07:43:58,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:58,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 707 [2020-09-25 07:43:58,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:58,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:58,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 07:43:58,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:58,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-25 07:43:58,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:58,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:58,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:58,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:58,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-25 07:43:58,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:58,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 555 [2020-09-25 07:43:58,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:58,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:58,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 07:43:58,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:58,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 07:43:58,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:58,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:58,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:59,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:59,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-25 07:43:59,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:59,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 479 [2020-09-25 07:43:59,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:59,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:59,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 07:43:59,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:59,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 07:43:59,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:59,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:59,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:59,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:59,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 07:43:59,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:59,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 375 [2020-09-25 07:43:59,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:59,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:59,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 07:43:59,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:59,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 07:43:59,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:43:59,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:43:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:59,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:00,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:00,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 07:44:00,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:00,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-09-25 07:44:00,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:00,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:00,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 07:44:00,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:00,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 07:44:00,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:00,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:44:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:00,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:00,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:00,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 07:44:00,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:00,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-25 07:44:00,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:00,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:00,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 07:44:00,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:00,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 07:44:00,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:00,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:44:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:00,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:00,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:00,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 07:44:00,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:00,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-09-25 07:44:00,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:00,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:00,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 07:44:00,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:00,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 07:44:00,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:00,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:44:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:00,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:00,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:00,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 07:44:00,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:00,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 07:44:00,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:00,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:00,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 07:44:00,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:00,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 07:44:00,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:00,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:44:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:00,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:00,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:00,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 07:44:00,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:00,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 07:44:00,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:00,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:00,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 07:44:00,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:00,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 07:44:00,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:00,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:44:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:00,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:00,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:00,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 07:44:00,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:00,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 07:44:00,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:00,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:00,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:44:00,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:00,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:44:00,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:00,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:44:00,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:00,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:01,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:01,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:44:01,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:01,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:44:01,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:01,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:01,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:44:01,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:01,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:44:01,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:01,114 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 60 proven. 488 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2020-09-25 07:44:01,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [485391287] [2020-09-25 07:44:01,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:44:01,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-25 07:44:01,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928875148] [2020-09-25 07:44:01,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-25 07:44:01,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:44:01,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-25 07:44:01,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=215, Unknown=0, NotChecked=0, Total=342 [2020-09-25 07:44:01,116 INFO L87 Difference]: Start difference. First operand 90 states and 91 transitions. Second operand 19 states. [2020-09-25 07:44:01,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:44:01,364 INFO L93 Difference]: Finished difference Result 101 states and 102 transitions. [2020-09-25 07:44:01,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 07:44:01,365 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 152 [2020-09-25 07:44:01,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:44:01,367 INFO L225 Difference]: With dead ends: 101 [2020-09-25 07:44:01,367 INFO L226 Difference]: Without dead ends: 95 [2020-09-25 07:44:01,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=379, Invalid=677, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 07:44:01,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-09-25 07:44:01,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2020-09-25 07:44:01,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-09-25 07:44:01,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 96 transitions. [2020-09-25 07:44:01,373 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 96 transitions. Word has length 152 [2020-09-25 07:44:01,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:44:01,374 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 96 transitions. [2020-09-25 07:44:01,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-25 07:44:01,374 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 96 transitions. [2020-09-25 07:44:01,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 07:44:01,376 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:44:01,376 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:44:01,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 07:44:01,377 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:44:01,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:44:01,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1375329431, now seen corresponding path program 14 times [2020-09-25 07:44:01,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:44:01,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1540583728] [2020-09-25 07:44:01,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:44:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:01,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:02,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:02,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 07:44:02,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:02,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1425 [2020-09-25 07:44:02,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:02,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:02,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-25 07:44:02,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 07:44:02,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-09-25 07:44:02,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:02,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:44:02,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:02,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:02,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:02,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:44:02,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:02,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:44:02,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:02,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:02,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:44:02,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:02,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:44:02,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:44:02,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:44:02,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:02,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:04,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:04,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-09-25 07:44:04,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:04,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1246 [2020-09-25 07:44:04,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:04,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:04,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-25 07:44:04,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:04,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-09-25 07:44:04,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:04,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:44:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:04,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:44:05,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:44:05,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-09-25 07:44:05,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:44:05,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1154 [2020-09-25 07:44:05,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:44:05,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:44:05,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 07:44:05,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:44:05,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-09-25 07:44:05,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:44:05,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 07:44:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:44:05,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking...