/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=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_i10_o10-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:28:36,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:28:36,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:28:36,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:28:36,963 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:28:36,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:28:36,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:28:36,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:28:36,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:28:36,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:28:36,984 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:28:36,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:28:36,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:28:36,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:28:36,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:28:36,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:28:36,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:28:36,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:28:37,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:28:37,009 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:28:37,012 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:28:37,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:28:37,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:28:37,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:28:37,027 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:28:37,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:28:37,028 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:28:37,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:28:37,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:28:37,032 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:28:37,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:28:37,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:28:37,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:28:37,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:28:37,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:28:37,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:28:37,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:28:37,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:28:37,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:28:37,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:28:37,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:28:37,042 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 05:28:37,089 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:28:37,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:28:37,091 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:28:37,092 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:28:37,092 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:28:37,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:28:37,093 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:28:37,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:28:37,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:28:37,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:28:37,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:28:37,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:28:37,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:28:37,095 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:28:37,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:28:37,096 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:28:37,096 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:28:37,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:28:37,096 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:28:37,096 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:28:37,097 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:28:37,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:28:37,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:28:37,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:28:37,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:28:37,098 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:28:37,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:28:37,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:28:37,098 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:28:37,098 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 05:28:37,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:28:37,636 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:28:37,641 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:28:37,643 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:28:37,644 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:28:37,645 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i10_o10-2.c [2020-09-25 05:28:37,731 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c18bc1278/58e234f5e7244ae0bff87be507b1959b/FLAGf9aa4489a [2020-09-25 05:28:38,276 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:28:38,277 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_i10_o10-2.c [2020-09-25 05:28:38,285 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c18bc1278/58e234f5e7244ae0bff87be507b1959b/FLAGf9aa4489a [2020-09-25 05:28:38,631 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c18bc1278/58e234f5e7244ae0bff87be507b1959b [2020-09-25 05:28:38,647 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:28:38,655 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:28:38,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:28:38,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:28:38,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:28:38,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:28:38" (1/1) ... [2020-09-25 05:28:38,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e85a8a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:28:38, skipping insertion in model container [2020-09-25 05:28:38,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:28:38" (1/1) ... [2020-09-25 05:28:38,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:28:38,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:28:38,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:28:38,935 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:28:38,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:28:38,973 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:28:38,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:28:38 WrapperNode [2020-09-25 05:28:38,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:28:38,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:28:38,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:28:38,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:28:38,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:28:38" (1/1) ... [2020-09-25 05:28:38,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:28:38" (1/1) ... [2020-09-25 05:28:38,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:28:38" (1/1) ... [2020-09-25 05:28:38,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:28:38" (1/1) ... [2020-09-25 05:28:39,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:28:38" (1/1) ... [2020-09-25 05:28:39,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:28:38" (1/1) ... [2020-09-25 05:28:39,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:28:38" (1/1) ... [2020-09-25 05:28:39,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:28:39,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:28:39,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:28:39,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:28:39,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:28:38" (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 05:28:39,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:28:39,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:28:39,180 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-25 05:28:39,181 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:28:39,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:28:39,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:28:39,181 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-25 05:28:39,181 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:28:39,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:28:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:28:39,430 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:28:39,430 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 05:28:39,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:28:39 BoogieIcfgContainer [2020-09-25 05:28:39,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:28:39,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:28:39,439 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:28:39,443 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:28:39,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:28:38" (1/3) ... [2020-09-25 05:28:39,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43246899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:28:39, skipping insertion in model container [2020-09-25 05:28:39,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:28:38" (2/3) ... [2020-09-25 05:28:39,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43246899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:28:39, skipping insertion in model container [2020-09-25 05:28:39,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:28:39" (3/3) ... [2020-09-25 05:28:39,449 INFO L109 eAbstractionObserver]: Analyzing ICFG id_i10_o10-2.c [2020-09-25 05:28:39,463 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:28:39,475 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:28:39,502 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:28:39,536 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:28:39,536 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:28:39,536 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:28:39,536 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:28:39,537 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:28:39,537 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:28:39,537 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:28:39,537 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:28:39,562 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-09-25 05:28:39,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 05:28:39,573 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:28:39,574 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:28:39,575 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:28:39,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:28:39,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1037734449, now seen corresponding path program 1 times [2020-09-25 05:28:39,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:28:39,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [539726306] [2020-09-25 05:28:39,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:28:39,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:39,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:39,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:39,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 05:28:39,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:39,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 05:28:39,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:39,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:39,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:28:39,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:28:39,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:28:39,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 05:28:39,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:28:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:39,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:39,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:39,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:28:39,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:39,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:28:39,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:39,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:39,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:28:39,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:39,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:28:39,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:39,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:28:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:39,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:39,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:39,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:28:39,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:39,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 05:28:39,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:39,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:39,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:28:39,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:28:39,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:28:39,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:39,933 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 05:28:39,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [539726306] [2020-09-25 05:28:39,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:28:39,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:28:39,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532613614] [2020-09-25 05:28:39,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:28:39,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:28:39,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:28:39,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:28:39,967 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 5 states. [2020-09-25 05:28:40,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:28:40,075 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-25 05:28:40,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:28:40,077 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 05:28:40,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:28:40,090 INFO L225 Difference]: With dead ends: 37 [2020-09-25 05:28:40,090 INFO L226 Difference]: Without dead ends: 23 [2020-09-25 05:28:40,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:28:40,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-09-25 05:28:40,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-09-25 05:28:40,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-09-25 05:28:40,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-09-25 05:28:40,143 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 16 [2020-09-25 05:28:40,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:28:40,144 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-09-25 05:28:40,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:28:40,144 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-09-25 05:28:40,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-25 05:28:40,146 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:28:40,146 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:28:40,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:28:40,147 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:28:40,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:28:40,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1478812441, now seen corresponding path program 1 times [2020-09-25 05:28:40,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:28:40,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471546741] [2020-09-25 05:28:40,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:28:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:40,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:40,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:40,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 05:28:40,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:40,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-09-25 05:28:40,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:40,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:40,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:28:40,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:28:40,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 05:28:40,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:40,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:28:40,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:40,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:40,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:40,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:28:40,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:40,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:28:40,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:40,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:40,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:28:40,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:40,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:28:40,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 05:28:40,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:28:40,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:40,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:40,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:40,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:28:40,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:40,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 05:28:40,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:40,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:40,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:28:40,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:28:40,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 05:28:40,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:40,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:40,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:40,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:40,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:40,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:28:40,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:40,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 05:28:40,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:40,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:40,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:28:40,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:40,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:28:40,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:40,630 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 05:28:40,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471546741] [2020-09-25 05:28:40,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:28:40,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 05:28:40,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712688203] [2020-09-25 05:28:40,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:28:40,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:28:40,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:28:40,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:28:40,642 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 7 states. [2020-09-25 05:28:40,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:28:40,702 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-09-25 05:28:40,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 05:28:40,703 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-09-25 05:28:40,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:28:40,704 INFO L225 Difference]: With dead ends: 34 [2020-09-25 05:28:40,705 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 05:28:40,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:28:40,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 05:28:40,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 05:28:40,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 05:28:40,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2020-09-25 05:28:40,715 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 24 [2020-09-25 05:28:40,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:28:40,715 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2020-09-25 05:28:40,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:28:40,716 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-09-25 05:28:40,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 05:28:40,717 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:28:40,718 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:28:40,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:28:40,718 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:28:40,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:28:40,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1463730447, now seen corresponding path program 2 times [2020-09-25 05:28:40,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:28:40,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1175223112] [2020-09-25 05:28:40,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:28:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:40,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:40,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:40,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 05:28:40,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:40,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-25 05:28:40,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:40,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:40,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:28:40,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:28:40,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 05:28:40,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:40,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:28:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:40,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:40,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:40,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:28:40,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:40,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:28:40,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:40,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:40,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:28:40,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:40,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:28:40,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:40,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:28:40,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:40,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:41,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:41,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 05:28:41,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:41,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-25 05:28:41,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:41,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:41,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:28:41,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:28:41,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 05:28:41,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:41,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:41,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:41,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:41,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:41,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:28:41,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:41,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 05:28:41,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:41,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:41,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:28:41,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:41,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 05:28:41,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:41,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:41,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:41,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:41,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:41,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:28:41,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:41,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 05:28:41,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:41,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:41,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:28:41,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:41,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:28:41,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:41,243 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 05:28:41,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1175223112] [2020-09-25 05:28:41,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:28:41,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 05:28:41,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477953042] [2020-09-25 05:28:41,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 05:28:41,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:28:41,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 05:28:41,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:28:41,246 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 8 states. [2020-09-25 05:28:41,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:28:41,320 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-25 05:28:41,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:28:41,321 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2020-09-25 05:28:41,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:28:41,322 INFO L225 Difference]: With dead ends: 39 [2020-09-25 05:28:41,322 INFO L226 Difference]: Without dead ends: 33 [2020-09-25 05:28:41,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:28:41,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-25 05:28:41,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-09-25 05:28:41,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-25 05:28:41,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-09-25 05:28:41,331 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 32 [2020-09-25 05:28:41,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:28:41,332 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-09-25 05:28:41,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 05:28:41,332 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-09-25 05:28:41,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 05:28:41,333 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:28:41,334 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:28:41,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:28:41,334 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:28:41,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:28:41,335 INFO L82 PathProgramCache]: Analyzing trace with hash 23346727, now seen corresponding path program 3 times [2020-09-25 05:28:41,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:28:41,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1772993848] [2020-09-25 05:28:41,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:28:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:41,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:41,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:41,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 05:28:41,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:41,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-25 05:28:41,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:41,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:41,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 05:28:41,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:28:41,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 05:28:41,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:41,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:28:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:41,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:41,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:41,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:28:41,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:41,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:28:41,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:41,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:41,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:28:41,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:41,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:28:41,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:41,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:28:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:41,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:41,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:41,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 05:28:41,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:41,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-09-25 05:28:41,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:41,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:41,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 05:28:41,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:28:41,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 05:28:41,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:41,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:41,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:41,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:41,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:41,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 05:28:41,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:41,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 05:28:41,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:41,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:41,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:28:41,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:41,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:28:41,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:41,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:41,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:41,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:41,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:41,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:28:41,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:41,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 05:28:41,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:41,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:41,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:28:41,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:41,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 05:28:41,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 05:28:41,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:41,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:41,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:41,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:41,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:28:41,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:41,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:28:41,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:41,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:41,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:28:41,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:41,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:28:41,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:42,014 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 05:28:42,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1772993848] [2020-09-25 05:28:42,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:28:42,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 05:28:42,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851258635] [2020-09-25 05:28:42,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:28:42,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:28:42,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:28:42,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:28:42,018 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 9 states. [2020-09-25 05:28:42,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:28:42,105 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2020-09-25 05:28:42,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 05:28:42,106 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 40 [2020-09-25 05:28:42,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:28:42,108 INFO L225 Difference]: With dead ends: 44 [2020-09-25 05:28:42,108 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 05:28:42,109 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 05:28:42,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 05:28:42,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-25 05:28:42,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-25 05:28:42,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-25 05:28:42,118 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 40 [2020-09-25 05:28:42,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:28:42,118 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-25 05:28:42,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 05:28:42,119 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-25 05:28:42,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-25 05:28:42,120 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:28:42,121 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:28:42,121 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:28:42,121 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:28:42,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:28:42,122 INFO L82 PathProgramCache]: Analyzing trace with hash -649675855, now seen corresponding path program 4 times [2020-09-25 05:28:42,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:28:42,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1933680015] [2020-09-25 05:28:42,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:28:42,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:42,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:42,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:42,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 05:28:42,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:42,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-25 05:28:42,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:42,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:42,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 05:28:42,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:28:42,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 05:28:42,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:42,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:28:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:42,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:42,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:42,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:28:42,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:42,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:28:42,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:42,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:42,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:28:42,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:42,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:28:42,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:28:42,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:28:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:42,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:42,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:42,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 05:28:42,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:42,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-25 05:28:42,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:42,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:42,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 05:28:42,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:28:42,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 05:28:42,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:42,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:42,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:42,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:42,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:42,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 05:28:42,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:42,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-25 05:28:42,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:42,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:42,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 05:28:42,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:42,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:28:42,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:42,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:42,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:42,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:42,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 05:28:42,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:42,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 05:28:42,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:42,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:42,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:28:42,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:42,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:28:42,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:42,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:42,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:42,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:42,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:28:42,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:42,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 05:28:42,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:42,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:42,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:28:42,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:42,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 05:28:42,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:43,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:43,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:43,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:43,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:43,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:28:43,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:43,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:28:43,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:43,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:43,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:28:43,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:43,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:28:43,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:43,041 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 05:28:43,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1933680015] [2020-09-25 05:28:43,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:28:43,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 05:28:43,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365248168] [2020-09-25 05:28:43,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 05:28:43,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:28:43,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 05:28:43,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:28:43,044 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 10 states. [2020-09-25 05:28:43,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:28:43,141 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-09-25 05:28:43,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 05:28:43,142 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 48 [2020-09-25 05:28:43,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:28:43,144 INFO L225 Difference]: With dead ends: 49 [2020-09-25 05:28:43,144 INFO L226 Difference]: Without dead ends: 43 [2020-09-25 05:28:43,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-25 05:28:43,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-25 05:28:43,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-09-25 05:28:43,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-25 05:28:43,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2020-09-25 05:28:43,152 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 48 [2020-09-25 05:28:43,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:28:43,153 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2020-09-25 05:28:43,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 05:28:43,153 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2020-09-25 05:28:43,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 05:28:43,155 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:28:43,155 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:28:43,155 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:28:43,156 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:28:43,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:28:43,156 INFO L82 PathProgramCache]: Analyzing trace with hash 899977063, now seen corresponding path program 5 times [2020-09-25 05:28:43,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:28:43,157 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [259284852] [2020-09-25 05:28:43,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:28:43,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:43,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:43,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:43,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 05:28:43,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:43,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-09-25 05:28:43,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:43,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:43,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 05:28:43,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:28:43,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 05:28:43,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:43,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:28:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:43,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:43,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:43,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:28:43,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:43,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:28:43,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:43,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:43,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:28:43,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:43,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:28:43,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:43,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:28:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:43,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:43,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:43,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 05:28:43,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:43,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-09-25 05:28:43,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:43,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:43,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 05:28:43,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:28:43,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 05:28:43,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:43,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:43,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:44,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:44,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 05:28:44,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:44,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-09-25 05:28:44,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:44,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:44,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 05:28:44,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:44,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 05:28:44,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:44,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:44,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:44,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:44,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 05:28:44,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:44,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-25 05:28:44,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:44,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:44,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 05:28:44,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:44,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:28:44,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:44,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:44,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:44,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:44,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 05:28:44,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:44,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-25 05:28:44,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:44,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:44,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:28:44,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:44,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:28:44,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:44,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:44,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:44,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:44,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:28:44,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:44,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 05:28:44,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:44,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:44,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:28:44,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:44,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 05:28:44,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:44,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:44,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:44,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:44,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:44,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:28:44,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:44,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:28:44,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:44,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:44,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:28:44,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:44,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:28:44,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16 [2020-09-25 05:28:44,418 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 10 proven. 62 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-09-25 05:28:44,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [259284852] [2020-09-25 05:28:44,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:28:44,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 05:28:44,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812393778] [2020-09-25 05:28:44,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 05:28:44,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:28:44,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 05:28:44,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:28:44,421 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 11 states. [2020-09-25 05:28:44,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:28:44,514 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2020-09-25 05:28:44,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 05:28:44,515 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2020-09-25 05:28:44,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:28:44,516 INFO L225 Difference]: With dead ends: 54 [2020-09-25 05:28:44,516 INFO L226 Difference]: Without dead ends: 48 [2020-09-25 05:28:44,517 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 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 05:28:44,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-25 05:28:44,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-25 05:28:44,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-25 05:28:44,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-09-25 05:28:44,524 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 56 [2020-09-25 05:28:44,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:28:44,525 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-09-25 05:28:44,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 05:28:44,525 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-09-25 05:28:44,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 05:28:44,527 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:28:44,527 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:28:44,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 05:28:44,527 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:28:44,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:28:44,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1000802417, now seen corresponding path program 6 times [2020-09-25 05:28:44,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:28:44,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [206437125] [2020-09-25 05:28:44,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:28:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:44,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:44,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:44,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:28:44,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:44,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 365 [2020-09-25 05:28:44,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:44,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:44,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 05:28:44,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:28:44,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 05:28:44,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:44,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:28:44,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:44,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:44,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:44,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:28:44,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:44,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:28:44,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:44,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:44,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:28:44,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:44,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:28:44,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:44,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:28:44,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:44,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:45,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:45,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 05:28:45,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:45,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 316 [2020-09-25 05:28:45,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:45,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:45,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 05:28:45,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:28:45,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 05:28:45,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:45,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:45,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:45,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:45,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:45,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 05:28:45,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:45,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-09-25 05:28:45,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:45,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:45,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 05:28:45,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:45,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 05:28:45,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:45,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:45,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:45,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:45,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:45,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 05:28:45,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:45,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-09-25 05:28:45,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:45,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:45,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 05:28:45,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:45,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 05:28:45,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:45,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:45,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:45,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:45,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:45,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 05:28:45,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:45,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-25 05:28:45,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:45,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:45,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 05:28:45,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:45,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:28:45,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:45,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:45,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:45,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:46,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:46,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 05:28:46,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:46,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 05:28:46,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:46,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:46,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:28:46,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:46,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:28:46,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:46,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:46,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:46,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:46,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:46,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:28:46,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:46,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 05:28:46,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:46,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:46,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:28:46,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:46,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 05:28:46,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:46,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:46,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:46,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:46,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:46,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:28:46,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:46,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:28:46,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:46,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:46,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:28:46,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:46,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:28:46,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:28:46,270 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 10 proven. 103 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-09-25 05:28:46,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [206437125] [2020-09-25 05:28:46,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:28:46,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 05:28:46,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70733957] [2020-09-25 05:28:46,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 05:28:46,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:28:46,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 05:28:46,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-09-25 05:28:46,278 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 13 states. [2020-09-25 05:28:46,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:28:46,466 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-25 05:28:46,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:28:46,467 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 64 [2020-09-25 05:28:46,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:28:46,469 INFO L225 Difference]: With dead ends: 59 [2020-09-25 05:28:46,470 INFO L226 Difference]: Without dead ends: 53 [2020-09-25 05:28:46,473 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=247, Unknown=0, NotChecked=0, Total=380 [2020-09-25 05:28:46,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-09-25 05:28:46,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-09-25 05:28:46,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-25 05:28:46,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2020-09-25 05:28:46,487 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 64 [2020-09-25 05:28:46,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:28:46,490 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2020-09-25 05:28:46,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 05:28:46,490 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2020-09-25 05:28:46,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 05:28:46,497 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:28:46,498 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:28:46,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 05:28:46,498 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:28:46,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:28:46,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1977618599, now seen corresponding path program 7 times [2020-09-25 05:28:46,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:28:46,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [982520442] [2020-09-25 05:28:46,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:28:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:46,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:46,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:46,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-25 05:28:46,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:46,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 468 [2020-09-25 05:28:46,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:46,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:46,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 05:28:47,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:28:47,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 05:28:47,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 05:28:47,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:28:47,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:47,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:47,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:47,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:28:47,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:47,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:28:47,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:47,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:47,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:28:47,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:47,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:28:47,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:47,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:28:47,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:47,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:47,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:47,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 05:28:47,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:47,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 423 [2020-09-25 05:28:47,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:47,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:47,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 05:28:47,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:28:47,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 05:28:47,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:47,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:47,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:47,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:47,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:47,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 05:28:47,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:47,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-09-25 05:28:47,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:47,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:47,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 05:28:47,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:47,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 05:28:47,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:47,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:47,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:48,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:48,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 05:28:48,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:48,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-09-25 05:28:48,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:48,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:48,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 05:28:48,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:48,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 05:28:48,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:48,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:48,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:48,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:48,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:48,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 05:28:48,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:48,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-09-25 05:28:48,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:48,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:48,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 05:28:48,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:48,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 05:28:48,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:48,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:48,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:48,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:48,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:48,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 05:28:48,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:48,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-25 05:28:48,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:48,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:48,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 05:28:48,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:48,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:28:48,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:48,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:48,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:48,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:48,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 05:28:48,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:48,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 05:28:48,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:48,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:48,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:28:48,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:48,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:28:48,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:48,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:48,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:48,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:48,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:48,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:28:48,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:48,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 05:28:48,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:48,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:48,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:28:48,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:48,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 05:28:48,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:48,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:48,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:48,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:48,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:28:48,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:48,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:28:48,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:48,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:48,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:28:48,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:48,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:28:48,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:48,784 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 16 proven. 131 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-09-25 05:28:48,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [982520442] [2020-09-25 05:28:48,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:28:48,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 05:28:48,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899439335] [2020-09-25 05:28:48,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 05:28:48,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:28:48,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 05:28:48,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-25 05:28:48,787 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 13 states. [2020-09-25 05:28:48,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:28:48,912 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-09-25 05:28:48,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 05:28:48,912 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 72 [2020-09-25 05:28:48,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:28:48,914 INFO L225 Difference]: With dead ends: 64 [2020-09-25 05:28:48,914 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 05:28:48,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-09-25 05:28:48,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 05:28:48,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-25 05:28:48,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 05:28:48,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-09-25 05:28:48,923 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 72 [2020-09-25 05:28:48,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:28:48,923 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-09-25 05:28:48,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 05:28:48,923 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-09-25 05:28:48,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-25 05:28:48,925 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:28:48,925 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:28:48,925 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 05:28:48,925 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:28:48,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:28:48,926 INFO L82 PathProgramCache]: Analyzing trace with hash 555623729, now seen corresponding path program 8 times [2020-09-25 05:28:48,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:28:48,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1859828538] [2020-09-25 05:28:48,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:28:48,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:48,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:49,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:49,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-25 05:28:49,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:49,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 506 [2020-09-25 05:28:49,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:49,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:49,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 05:28:49,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:28:49,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 05:28:49,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:49,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:28:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:49,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:49,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:49,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:28:49,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:49,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:28:49,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:49,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:49,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:28:49,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:49,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:28:49,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:28:49,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:28:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:49,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:49,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:49,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 05:28:49,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:49,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 493 [2020-09-25 05:28:49,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:49,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:49,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 05:28:49,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:28:49,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 05:28:49,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:50,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:50,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:50,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:50,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 05:28:50,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:50,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 396 [2020-09-25 05:28:50,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:50,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:50,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 05:28:50,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:50,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 05:28:50,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:50,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:50,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:50,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:50,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:50,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 05:28:50,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:50,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-09-25 05:28:50,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:50,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:50,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 05:28:50,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:50,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 05:28:50,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:50,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:50,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:50,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:51,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:51,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 05:28:51,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:51,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-25 05:28:51,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:51,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:51,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 05:28:51,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:51,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 05:28:51,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:51,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:51,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:51,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:51,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 05:28:51,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:51,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-09-25 05:28:51,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:51,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:51,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 05:28:51,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:51,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 05:28:51,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:51,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:51,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:51,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:51,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 05:28:51,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:51,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-09-25 05:28:51,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:51,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:51,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 05:28:51,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:51,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:28:51,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:51,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:51,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:51,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:51,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:51,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 05:28:51,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:51,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-25 05:28:51,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:51,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:51,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:28:51,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:51,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:28:51,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:51,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:51,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:51,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:51,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:28:51,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:51,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 05:28:51,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:51,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:51,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:28:51,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:51,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 05:28:51,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:51,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:51,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:51,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:51,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:28:51,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:51,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:28:51,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:51,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:51,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:28:51,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:51,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:28:51,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:51,773 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 12 proven. 184 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-09-25 05:28:51,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1859828538] [2020-09-25 05:28:51,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:28:51,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 05:28:51,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158149416] [2020-09-25 05:28:51,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 05:28:51,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:28:51,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 05:28:51,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-09-25 05:28:51,782 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 15 states. [2020-09-25 05:28:51,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:28:51,933 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2020-09-25 05:28:51,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 05:28:51,934 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 80 [2020-09-25 05:28:51,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:28:51,936 INFO L225 Difference]: With dead ends: 69 [2020-09-25 05:28:51,936 INFO L226 Difference]: Without dead ends: 63 [2020-09-25 05:28:51,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=194, Invalid=358, Unknown=0, NotChecked=0, Total=552 [2020-09-25 05:28:51,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-25 05:28:51,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-09-25 05:28:51,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 05:28:51,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2020-09-25 05:28:51,950 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 80 [2020-09-25 05:28:51,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:28:51,954 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2020-09-25 05:28:51,954 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 05:28:51,954 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2020-09-25 05:28:51,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-25 05:28:51,955 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:28:51,955 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:28:51,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 05:28:51,957 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:28:51,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:28:51,958 INFO L82 PathProgramCache]: Analyzing trace with hash 777699815, now seen corresponding path program 9 times [2020-09-25 05:28:51,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:28:51,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [33402221] [2020-09-25 05:28:51,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:28:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:52,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:52,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:52,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 05:28:52,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:52,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 648 [2020-09-25 05:28:52,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:52,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:52,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 05:28:52,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:28:52,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 05:28:52,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:52,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:28:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:52,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:52,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:52,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:28:52,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:52,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:28:52,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:52,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:52,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:28:52,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:52,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:28:52,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:52,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:28:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:52,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:53,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:53,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 05:28:53,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:53,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 587 [2020-09-25 05:28:53,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:53,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:53,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 05:28:53,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:28:53,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 05:28:53,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:53,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:53,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:53,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:53,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:53,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 05:28:53,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:53,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 517 [2020-09-25 05:28:53,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:53,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:53,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 05:28:53,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:53,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 05:28:53,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:53,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:53,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:53,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:54,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:54,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 05:28:54,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:54,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 408 [2020-09-25 05:28:54,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:54,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:54,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 05:28:54,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:54,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 05:28:54,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:54,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:54,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:54,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:54,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:54,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 05:28:54,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:54,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-09-25 05:28:54,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:54,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:54,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 05:28:54,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:54,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 05:28:54,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:54,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:54,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:54,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:54,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:54,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 05:28:54,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:54,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-25 05:28:54,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:54,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:54,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 05:28:54,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:54,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 05:28:54,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:54,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:54,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:55,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:55,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 05:28:55,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:55,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-09-25 05:28:55,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:55,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:55,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 05:28:55,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:55,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 05:28:55,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:28:55,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:55,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:55,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:55,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:55,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 05:28:55,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:55,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 05:28:55,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:55,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:55,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 05:28:55,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:55,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:28:55,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:55,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:55,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:55,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:55,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:55,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 05:28:55,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:55,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-25 05:28:55,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:55,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:55,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:28:55,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:55,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:28:55,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:28:55,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:55,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:55,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:55,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:28:55,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:55,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 05:28:55,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:55,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:55,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:28:55,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:55,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 05:28:55,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:55,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:55,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:55,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:55,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:55,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:28:55,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:55,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:28:55,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:55,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:55,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:28:55,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:55,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:28:55,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:55,545 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 26 proven. 214 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-09-25 05:28:55,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [33402221] [2020-09-25 05:28:55,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:28:55,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 05:28:55,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118511894] [2020-09-25 05:28:55,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 05:28:55,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:28:55,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 05:28:55,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-25 05:28:55,547 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 15 states. [2020-09-25 05:28:55,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:28:55,706 INFO L93 Difference]: Finished difference Result 74 states and 75 transitions. [2020-09-25 05:28:55,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 05:28:55,707 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 88 [2020-09-25 05:28:55,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:28:55,708 INFO L225 Difference]: With dead ends: 74 [2020-09-25 05:28:55,709 INFO L226 Difference]: Without dead ends: 68 [2020-09-25 05:28:55,710 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2020-09-25 05:28:55,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-25 05:28:55,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-09-25 05:28:55,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-25 05:28:55,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2020-09-25 05:28:55,729 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 88 [2020-09-25 05:28:55,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:28:55,733 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2020-09-25 05:28:55,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 05:28:55,733 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2020-09-25 05:28:55,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-09-25 05:28:55,734 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:28:55,734 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:28:55,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 05:28:55,735 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:28:55,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:28:55,735 INFO L82 PathProgramCache]: Analyzing trace with hash 2145915377, now seen corresponding path program 10 times [2020-09-25 05:28:55,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:28:55,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1476036097] [2020-09-25 05:28:55,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:28:55,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:55,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:56,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:56,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-25 05:28:56,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:56,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 679 [2020-09-25 05:28:56,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:56,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:56,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 05:28:56,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-09-25 05:28:56,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 05:28:56,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:28:56,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:28:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:56,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:56,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:56,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:28:56,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:56,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:28:56,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:56,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:56,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:28:56,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:56,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:28:56,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:28:56,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:28:56,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:56,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:57,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:57,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 05:28:57,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:57,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 647 [2020-09-25 05:28:57,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:57,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:57,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 05:28:57,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:57,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-25 05:28:57,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:57,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:57,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:57,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:57,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:57,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 05:28:57,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:57,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 554 [2020-09-25 05:28:57,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:57,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:57,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 05:28:57,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:57,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 05:28:57,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:57,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:57,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:57,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:58,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:58,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 05:28:58,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:58,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 457 [2020-09-25 05:28:58,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:58,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:58,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 05:28:58,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:58,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 05:28:58,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:58,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:58,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:58,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:58,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 05:28:58,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:58,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-09-25 05:28:58,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:58,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:58,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 05:28:58,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:58,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 05:28:58,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:58,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:58,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:58,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:58,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 05:28:58,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:58,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-09-25 05:28:58,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:58,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:58,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 05:28:58,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:58,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 05:28:58,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:28:59,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:59,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:59,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:59,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 05:28:59,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:59,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-09-25 05:28:59,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:59,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:59,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 05:28:59,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:59,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 05:28:59,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:28:59,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:59,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:59,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:59,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:59,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 05:28:59,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:59,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-25 05:28:59,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:59,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:59,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 05:28:59,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:59,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 05:28:59,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:28:59,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:59,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:59,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:59,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 05:28:59,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:59,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 05:28:59,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:59,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:59,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:28:59,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:59,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 05:28:59,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:28:59,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:59,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:59,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:59,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:59,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 05:28:59,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:59,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 05:28:59,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:59,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:59,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:28:59,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:59,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 05:28:59,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:59,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:59,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:59,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:59,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:28:59,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:59,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 05:28:59,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:59,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:59,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:28:59,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:59,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 05:28:59,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:29:00,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:00,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:00,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:00,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:00,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:29:00,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:00,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 05:29:00,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:00,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:00,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:29:00,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:00,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:29:00,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:29:00,217 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-09-25 05:29:00,217 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1476036097] [2020-09-25 05:29:00,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:29:00,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-25 05:29:00,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051341837] [2020-09-25 05:29:00,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-25 05:29:00,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:29:00,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-25 05:29:00,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-09-25 05:29:00,225 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 25 states. [2020-09-25 05:29:00,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:29:00,981 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-25 05:29:00,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-25 05:29:00,981 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 96 [2020-09-25 05:29:00,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:29:00,983 INFO L225 Difference]: With dead ends: 79 [2020-09-25 05:29:00,983 INFO L226 Difference]: Without dead ends: 73 [2020-09-25 05:29:00,984 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=91, Invalid=1169, Unknown=0, NotChecked=0, Total=1260 [2020-09-25 05:29:00,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-25 05:29:00,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-09-25 05:29:00,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-25 05:29:00,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2020-09-25 05:29:00,991 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 96 [2020-09-25 05:29:00,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:29:00,991 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2020-09-25 05:29:00,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-25 05:29:00,991 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2020-09-25 05:29:00,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-25 05:29:00,993 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:29:00,993 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:29:00,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 05:29:00,993 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:29:00,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:29:00,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1180214055, now seen corresponding path program 11 times [2020-09-25 05:29:00,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:29:00,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1304508636] [2020-09-25 05:29:00,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:29:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:01,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:01,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:02,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:02,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-09-25 05:29:02,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:29:02,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1456 [2020-09-25 05:29:02,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:02,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:02,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 05:29:02,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:29:02,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 05:29:02,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:29:02,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:29:02,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:02,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:02,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:02,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:29:02,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:02,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:29:02,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:02,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:02,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:29:02,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:02,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:29:02,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:02,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:29:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:02,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:03,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:03,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 05:29:03,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:03,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 804 [2020-09-25 05:29:03,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:03,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:03,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 05:29:03,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:29:03,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 05:29:03,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:03,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:03,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:03,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:04,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:04,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 05:29:04,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:04,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 691 [2020-09-25 05:29:04,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:04,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:04,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 05:29:04,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:04,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 05:29:04,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:04,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:04,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:04,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:04,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 05:29:04,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:04,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 517 [2020-09-25 05:29:04,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:04,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:04,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 05:29:04,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:04,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 05:29:04,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:04,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:04,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:05,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:05,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 05:29:05,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:05,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 407 [2020-09-25 05:29:05,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:05,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:05,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 05:29:05,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:05,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 05:29:05,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:05,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:05,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:05,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:05,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 05:29:05,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:05,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 385 [2020-09-25 05:29:05,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:05,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:05,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 05:29:05,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:05,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 05:29:05,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:05,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:05,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:05,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:05,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 05:29:05,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:05,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-09-25 05:29:05,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:05,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:05,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 05:29:05,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:05,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 05:29:05,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:05,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:05,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:05,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:05,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:05,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 05:29:05,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:05,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-09-25 05:29:05,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:05,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:05,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 05:29:05,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:05,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 05:29:05,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:06,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:06,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:06,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:06,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 05:29:06,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:06,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-25 05:29:06,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:06,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:06,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 05:29:06,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:06,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 05:29:06,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:06,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:06,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:06,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:06,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 05:29:06,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:06,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 05:29:06,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:06,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:06,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 05:29:06,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:06,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:29:06,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:06,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:06,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:06,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:06,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 05:29:06,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:06,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 05:29:06,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:06,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:06,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:29:06,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:06,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:29:06,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:06,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:06,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:06,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:06,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:06,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:29:06,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:06,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 05:29:06,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:06,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:06,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:29:06,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:06,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 05:29:06,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:06,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:06,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:06,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:06,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:29:06,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:06,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:29:06,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:06,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:06,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:29:06,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:06,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:29:06,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:06,553 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 303 proven. 64 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2020-09-25 05:29:06,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1304508636] [2020-09-25 05:29:06,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:29:06,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-25 05:29:06,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921716830] [2020-09-25 05:29:06,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-25 05:29:06,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:29:06,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-25 05:29:06,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-09-25 05:29:06,556 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand 18 states. [2020-09-25 05:29:06,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:29:06,805 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions. [2020-09-25 05:29:06,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 05:29:06,805 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 104 [2020-09-25 05:29:06,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:29:06,806 INFO L225 Difference]: With dead ends: 73 [2020-09-25 05:29:06,806 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 05:29:06,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=272, Invalid=598, Unknown=0, NotChecked=0, Total=870 [2020-09-25 05:29:06,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 05:29:06,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 05:29:06,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 05:29:06,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 05:29:06,809 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 104 [2020-09-25 05:29:06,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:29:06,809 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 05:29:06,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-25 05:29:06,809 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 05:29:06,809 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 05:29:06,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 05:29:06,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 05:29:06,863 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 05:29:06,863 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 05:29:06,863 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 05:29:06,863 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 05:29:06,863 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 05:29:06,864 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 05:29:06,864 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-09-25 05:29:06,864 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 9 15) the Hoare annotation is: true [2020-09-25 05:29:06,864 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 9 15) no Hoare annotation was computed. [2020-09-25 05:29:06,864 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 05:29:06,864 INFO L268 CegarLoopResult]: For program point L12(lines 12 14) no Hoare annotation was computed. [2020-09-25 05:29:06,865 INFO L264 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (and (<= 10 main_~input~0) (<= main_~input~0 10)) [2020-09-25 05:29:06,865 INFO L268 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-09-25 05:29:06,866 INFO L268 CegarLoopResult]: For program point L12-2(lines 9 15) no Hoare annotation was computed. [2020-09-25 05:29:06,866 INFO L268 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-09-25 05:29:06,866 INFO L268 CegarLoopResult]: For program point L11-3(line 11) no Hoare annotation was computed. [2020-09-25 05:29:06,866 INFO L268 CegarLoopResult]: For program point idFINAL(lines 4 7) no Hoare annotation was computed. [2020-09-25 05:29:06,866 INFO L268 CegarLoopResult]: For program point idEXIT(lines 4 7) no Hoare annotation was computed. [2020-09-25 05:29:06,867 INFO L271 CegarLoopResult]: At program point idENTRY(lines 4 7) the Hoare annotation is: true [2020-09-25 05:29:06,867 INFO L264 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: (= |id_#in~x| id_~x) [2020-09-25 05:29:06,867 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-25 05:29:06,867 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-25 05:29:06,867 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-25 05:29:06,867 INFO L268 CegarLoopResult]: For program point L6-2(line 6) no Hoare annotation was computed. [2020-09-25 05:29:06,867 INFO L268 CegarLoopResult]: For program point L6-3(line 6) no Hoare annotation was computed. [2020-09-25 05:29:06,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 05:29:06 BoogieIcfgContainer [2020-09-25 05:29:06,878 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 05:29:06,886 INFO L168 Benchmark]: Toolchain (without parser) took 28231.64 ms. Allocated memory was 146.3 MB in the beginning and 411.6 MB in the end (delta: 265.3 MB). Free memory was 101.1 MB in the beginning and 142.1 MB in the end (delta: -41.0 MB). Peak memory consumption was 224.3 MB. Max. memory is 7.1 GB. [2020-09-25 05:29:06,890 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 05:29:06,891 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.48 ms. Allocated memory is still 146.3 MB. Free memory was 100.5 MB in the beginning and 90.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-09-25 05:29:06,891 INFO L168 Benchmark]: Boogie Preprocessor took 31.10 ms. Allocated memory is still 146.3 MB. Free memory was 90.9 MB in the beginning and 89.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-25 05:29:06,892 INFO L168 Benchmark]: RCFGBuilder took 431.21 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 89.6 MB in the beginning and 170.3 MB in the end (delta: -80.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-09-25 05:29:06,897 INFO L168 Benchmark]: TraceAbstraction took 27439.48 ms. Allocated memory was 202.4 MB in the beginning and 411.6 MB in the end (delta: 209.2 MB). Free memory was 169.7 MB in the beginning and 142.1 MB in the end (delta: 27.6 MB). Peak memory consumption was 236.8 MB. Max. memory is 7.1 GB. [2020-09-25 05:29:06,904 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 317.48 ms. Allocated memory is still 146.3 MB. Free memory was 100.5 MB in the beginning and 90.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.10 ms. Allocated memory is still 146.3 MB. Free memory was 90.9 MB in the beginning and 89.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 431.21 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 89.6 MB in the beginning and 170.3 MB in the end (delta: -80.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27439.48 ms. Allocated memory was 202.4 MB in the beginning and 411.6 MB in the end (delta: 209.2 MB). Free memory was 169.7 MB in the beginning and 142.1 MB in the end (delta: 27.6 MB). Peak memory consumption was 236.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 27.2s, OverallIterations: 12, TraceHistogramMax: 12, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 285 SDtfs, 520 SDslu, 1755 SDs, 0 SdLazy, 1081 SolverSat, 67 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 383 GetRequests, 177 SyntacticMatches, 3 SemanticMatches, 203 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 15 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 24.3s InterpolantComputationTime, 720 NumberOfCodeBlocks, 720 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 708 ConstructedInterpolants, 0 QuantifiedInterpolants, 149546 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 1 PerfectInterpolantSequences, 940/2024 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...