/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=WIDEST --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/id2_b5_o10.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:11:15,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:11:15,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:11:15,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:11:15,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:11:15,384 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:11:15,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:11:15,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:11:15,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:11:15,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:11:15,392 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:11:15,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:11:15,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:11:15,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:11:15,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:11:15,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:11:15,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:11:15,400 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:11:15,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:11:15,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:11:15,406 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:11:15,407 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:11:15,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:11:15,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:11:15,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:11:15,413 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:11:15,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:11:15,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:11:15,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:11:15,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:11:15,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:11:15,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:11:15,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:11:15,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:11:15,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:11:15,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:11:15,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:11:15,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:11:15,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:11:15,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:11:15,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:11:15,431 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 03:11:15,491 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:11:15,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:11:15,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:11:15,494 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:11:15,494 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:11:15,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:11:15,496 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:11:15,496 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:11:15,496 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:11:15,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:11:15,496 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:11:15,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:11:15,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:11:15,497 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:11:15,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:11:15,498 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:11:15,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:11:15,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:11:15,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:11:15,500 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:11:15,500 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:11:15,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:11:15,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:11:15,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:11:15,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:11:15,501 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:11:15,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:11:15,502 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:11:15,502 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:11:15,502 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 03:11:16,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:11:16,040 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:11:16,045 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:11:16,047 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:11:16,047 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:11:16,048 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id2_b5_o10.c [2020-09-25 03:11:16,147 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b0b311da/d71b987572bb4d7c99df2b50c2c0cfb5/FLAG0abac6f29 [2020-09-25 03:11:16,683 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:11:16,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id2_b5_o10.c [2020-09-25 03:11:16,691 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b0b311da/d71b987572bb4d7c99df2b50c2c0cfb5/FLAG0abac6f29 [2020-09-25 03:11:17,040 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b0b311da/d71b987572bb4d7c99df2b50c2c0cfb5 [2020-09-25 03:11:17,053 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:11:17,059 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:11:17,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:11:17,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:11:17,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:11:17,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:11:17" (1/1) ... [2020-09-25 03:11:17,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@321fecde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:17, skipping insertion in model container [2020-09-25 03:11:17,071 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:11:17" (1/1) ... [2020-09-25 03:11:17,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:11:17,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:11:17,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:11:17,387 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:11:17,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:11:17,422 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:11:17,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:17 WrapperNode [2020-09-25 03:11:17,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:11:17,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:11:17,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:11:17,424 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:11:17,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:17" (1/1) ... [2020-09-25 03:11:17,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:17" (1/1) ... [2020-09-25 03:11:17,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:17" (1/1) ... [2020-09-25 03:11:17,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:17" (1/1) ... [2020-09-25 03:11:17,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:17" (1/1) ... [2020-09-25 03:11:17,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:17" (1/1) ... [2020-09-25 03:11:17,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:17" (1/1) ... [2020-09-25 03:11:17,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:11:17,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:11:17,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:11:17,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:11:17,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:17" (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 03:11:17,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:11:17,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:11:17,618 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-25 03:11:17,618 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2020-09-25 03:11:17,618 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:11:17,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 03:11:17,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:11:17,619 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-25 03:11:17,619 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2020-09-25 03:11:17,619 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:11:17,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:11:17,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:11:17,872 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:11:17,872 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 03:11:17,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:11:17 BoogieIcfgContainer [2020-09-25 03:11:17,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:11:17,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:11:17,892 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:11:17,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:11:17,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:11:17" (1/3) ... [2020-09-25 03:11:17,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc758d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:11:17, skipping insertion in model container [2020-09-25 03:11:17,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:17" (2/3) ... [2020-09-25 03:11:17,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc758d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:11:17, skipping insertion in model container [2020-09-25 03:11:17,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:11:17" (3/3) ... [2020-09-25 03:11:17,912 INFO L109 eAbstractionObserver]: Analyzing ICFG id2_b5_o10.c [2020-09-25 03:11:17,937 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:11:17,949 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:11:17,979 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:11:18,009 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:11:18,010 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:11:18,010 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:11:18,010 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:11:18,010 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:11:18,010 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:11:18,011 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:11:18,011 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:11:18,033 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-09-25 03:11:18,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 03:11:18,041 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:18,042 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:18,042 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:18,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:18,050 INFO L82 PathProgramCache]: Analyzing trace with hash 875745540, now seen corresponding path program 1 times [2020-09-25 03:11:18,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:18,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1761057537] [2020-09-25 03:11:18,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:18,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:18,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:18,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:11:18,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:18,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 03:11:18,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:18,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:11:18,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 03:11:18,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:18,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:11:18,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:18,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:18,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:18,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:18,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:18,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:11:18,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:18,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:18,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:18,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:18,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:18,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:11:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:18,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:18,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:18,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:18,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:18,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 03:11:18,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:18,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:18,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:18,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:18,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:18,438 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 03:11:18,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1761057537] [2020-09-25 03:11:18,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:11:18,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:11:18,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050504549] [2020-09-25 03:11:18,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:11:18,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:18,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:11:18,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:11:18,465 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 5 states. [2020-09-25 03:11:18,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:18,563 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2020-09-25 03:11:18,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 03:11:18,566 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 03:11:18,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:18,580 INFO L225 Difference]: With dead ends: 51 [2020-09-25 03:11:18,580 INFO L226 Difference]: Without dead ends: 36 [2020-09-25 03:11:18,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:11:18,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-25 03:11:18,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-09-25 03:11:18,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-25 03:11:18,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2020-09-25 03:11:18,646 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 16 [2020-09-25 03:11:18,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:18,647 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2020-09-25 03:11:18,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:11:18,647 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2020-09-25 03:11:18,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-25 03:11:18,650 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:18,650 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:18,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:11:18,651 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:18,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:18,652 INFO L82 PathProgramCache]: Analyzing trace with hash 71846672, now seen corresponding path program 1 times [2020-09-25 03:11:18,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:18,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1476445102] [2020-09-25 03:11:18,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:18,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:18,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:19,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:19,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 03:11:19,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:11:19,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 471 [2020-09-25 03:11:19,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:19,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:19,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 03:11:19,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:11:19,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:11:19,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:19,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:19,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:19,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:19,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:19,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:19,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:11:19,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:19,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:19,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:19,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:19,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:19,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:11:19,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:19,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:19,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:19,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:11:19,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:19,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-25 03:11:19,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:19,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:11:19,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:19,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 03:11:19,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:19,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:19,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:19,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:19,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:19,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:19,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 03:11:19,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:19,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:19,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:19,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:19,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:11:19,502 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 03:11:19,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1476445102] [2020-09-25 03:11:19,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:11:19,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 03:11:19,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922746233] [2020-09-25 03:11:19,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 03:11:19,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:19,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 03:11:19,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 03:11:19,528 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 8 states. [2020-09-25 03:11:19,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:19,681 INFO L93 Difference]: Finished difference Result 66 states and 74 transitions. [2020-09-25 03:11:19,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 03:11:19,682 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-09-25 03:11:19,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:19,686 INFO L225 Difference]: With dead ends: 66 [2020-09-25 03:11:19,686 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 03:11:19,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:11:19,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 03:11:19,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 03:11:19,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 03:11:19,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2020-09-25 03:11:19,707 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 25 [2020-09-25 03:11:19,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:19,708 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2020-09-25 03:11:19,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 03:11:19,708 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2020-09-25 03:11:19,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 03:11:19,711 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:19,711 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:19,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:11:19,712 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:19,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:19,712 INFO L82 PathProgramCache]: Analyzing trace with hash -511991682, now seen corresponding path program 1 times [2020-09-25 03:11:19,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:19,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [136175457] [2020-09-25 03:11:19,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:19,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:19,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:20,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:20,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:20,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:20,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 03:11:20,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:11:20,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1044 [2020-09-25 03:11:20,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:20,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:20,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 03:11:20,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:11:20,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:20,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:20,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:20,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:20,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:20,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:20,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:11:20,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:20,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:20,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:20,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:20,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:20,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:11:20,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:20,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:20,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:20,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:21,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:21,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:11:21,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:11:21,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 498 [2020-09-25 03:11:21,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:21,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:11:21,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:21,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:11:21,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:21,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:21,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:21,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:21,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:21,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:11:21,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:11:21,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 03:11:21,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:21,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:21,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:21,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 03:11:21,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:21,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:21,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:21,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:21,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:21,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:21,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:21,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:11:21,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:21,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:21,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:21,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:21,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:21,601 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 03:11:21,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [136175457] [2020-09-25 03:11:21,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:11:21,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 03:11:21,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633576858] [2020-09-25 03:11:21,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 03:11:21,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:21,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 03:11:21,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 03:11:21,604 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 8 states. [2020-09-25 03:11:21,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:21,664 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2020-09-25 03:11:21,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 03:11:21,665 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2020-09-25 03:11:21,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:21,667 INFO L225 Difference]: With dead ends: 69 [2020-09-25 03:11:21,667 INFO L226 Difference]: Without dead ends: 50 [2020-09-25 03:11:21,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:11:21,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-25 03:11:21,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 47. [2020-09-25 03:11:21,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-09-25 03:11:21,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2020-09-25 03:11:21,677 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 34 [2020-09-25 03:11:21,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:21,677 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2020-09-25 03:11:21,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 03:11:21,678 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2020-09-25 03:11:21,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 03:11:21,679 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:21,679 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:21,680 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:11:21,680 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:21,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:21,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1477652418, now seen corresponding path program 1 times [2020-09-25 03:11:21,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:21,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289405694] [2020-09-25 03:11:21,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:21,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:21,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:21,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:21,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 03:11:21,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:11:21,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-25 03:11:21,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:21,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:11:21,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-25 03:11:21,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:21,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:21,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:21,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:21,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:21,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:21,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:21,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:21,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:21,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:21,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:21,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:21,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:21,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:11:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:21,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:22,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:22,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:11:22,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:22,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 03:11:22,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:22,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:11:22,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 03:11:22,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:22,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:22,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:22,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:22,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:22,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:22,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:11:22,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:22,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 03:11:22,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:22,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:11:22,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 03:11:22,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:22,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:22,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:22,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:22,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:22,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:22,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:22,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 03:11:22,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:22,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:22,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:22,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:22,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:22,193 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 03:11:22,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [289405694] [2020-09-25 03:11:22,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:11:22,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:11:22,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771968231] [2020-09-25 03:11:22,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:11:22,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:22,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:11:22,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:11:22,196 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 5 states. [2020-09-25 03:11:22,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:22,238 INFO L93 Difference]: Finished difference Result 79 states and 86 transitions. [2020-09-25 03:11:22,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 03:11:22,239 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-09-25 03:11:22,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:22,240 INFO L225 Difference]: With dead ends: 79 [2020-09-25 03:11:22,240 INFO L226 Difference]: Without dead ends: 55 [2020-09-25 03:11:22,241 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 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 03:11:22,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-25 03:11:22,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 52. [2020-09-25 03:11:22,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-25 03:11:22,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2020-09-25 03:11:22,249 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 34 [2020-09-25 03:11:22,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:22,250 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2020-09-25 03:11:22,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:11:22,250 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2020-09-25 03:11:22,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 03:11:22,252 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:22,252 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:22,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:11:22,252 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:22,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:22,253 INFO L82 PathProgramCache]: Analyzing trace with hash -2109914946, now seen corresponding path program 1 times [2020-09-25 03:11:22,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:22,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [914623746] [2020-09-25 03:11:22,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:22,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:22,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:22,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:22,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:22,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:22,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 03:11:22,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:11:22,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 437 [2020-09-25 03:11:22,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:22,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:11:22,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-25 03:11:22,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:11:22,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:22,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:22,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:22,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:22,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:22,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:22,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:22,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:22,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:22,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:22,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:22,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:22,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:11:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:22,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:22,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:22,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:11:22,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:22,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-25 03:11:22,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:22,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:22,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:22,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:11:22,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:22,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:22,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:22,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:23,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:23,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:11:23,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:23,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 03:11:23,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:23,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:11:23,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:23,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 03:11:23,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:23,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:23,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:23,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:23,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:23,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:23,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 03:11:23,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:23,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:23,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:23,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:23,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:23,153 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 03:11:23,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [914623746] [2020-09-25 03:11:23,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:23,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 03:11:23,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546048693] [2020-09-25 03:11:23,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 03:11:23,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:23,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 03:11:23,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:11:23,155 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 11 states. [2020-09-25 03:11:23,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:23,358 INFO L93 Difference]: Finished difference Result 88 states and 96 transitions. [2020-09-25 03:11:23,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 03:11:23,358 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 34 [2020-09-25 03:11:23,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:23,360 INFO L225 Difference]: With dead ends: 88 [2020-09-25 03:11:23,360 INFO L226 Difference]: Without dead ends: 61 [2020-09-25 03:11:23,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-09-25 03:11:23,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-25 03:11:23,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 53. [2020-09-25 03:11:23,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-25 03:11:23,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2020-09-25 03:11:23,369 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 34 [2020-09-25 03:11:23,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:23,369 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2020-09-25 03:11:23,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 03:11:23,370 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2020-09-25 03:11:23,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 03:11:23,371 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:23,372 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:23,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 03:11:23,372 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:23,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:23,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1462520762, now seen corresponding path program 1 times [2020-09-25 03:11:23,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:23,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [29540784] [2020-09-25 03:11:23,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:23,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:23,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:23,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:23,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 03:11:23,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:11:23,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-09-25 03:11:23,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:23,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:23,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-25 03:11:23,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:11:23,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:23,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:23,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:23,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:23,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:23,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:23,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:23,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:23,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:23,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:23,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:23,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:23,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:11:23,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:23,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:23,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:23,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 03:11:23,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:23,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-25 03:11:23,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:23,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:23,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 03:11:23,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:11:23,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:23,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:23,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:24,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:24,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:11:24,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:24,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 03:11:24,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:24,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:24,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 03:11:24,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:11:24,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:24,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:24,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:24,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:24,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:24,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:11:24,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:24,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 03:11:24,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:24,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:11:24,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:24,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 03:11:24,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:24,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:24,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:24,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:24,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:24,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:24,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 03:11:24,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:24,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:24,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:24,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:24,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:24,349 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 03:11:24,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [29540784] [2020-09-25 03:11:24,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:11:24,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 03:11:24,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735441877] [2020-09-25 03:11:24,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 03:11:24,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:24,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 03:11:24,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 03:11:24,353 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand 8 states. [2020-09-25 03:11:24,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:24,503 INFO L93 Difference]: Finished difference Result 91 states and 98 transitions. [2020-09-25 03:11:24,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 03:11:24,504 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-09-25 03:11:24,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:24,506 INFO L225 Difference]: With dead ends: 91 [2020-09-25 03:11:24,506 INFO L226 Difference]: Without dead ends: 67 [2020-09-25 03:11:24,507 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:11:24,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-09-25 03:11:24,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 64. [2020-09-25 03:11:24,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-09-25 03:11:24,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2020-09-25 03:11:24,516 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 43 [2020-09-25 03:11:24,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:24,517 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2020-09-25 03:11:24,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 03:11:24,517 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2020-09-25 03:11:24,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 03:11:24,519 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:24,519 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:24,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 03:11:24,520 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:24,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:24,521 INFO L82 PathProgramCache]: Analyzing trace with hash 830258234, now seen corresponding path program 1 times [2020-09-25 03:11:24,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:24,522 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [271919041] [2020-09-25 03:11:24,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:24,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:24,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:24,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:25,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:25,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:25,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 03:11:25,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:11:25,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 897 [2020-09-25 03:11:25,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:25,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:11:25,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-25 03:11:25,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 03:11:25,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:25,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:25,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:25,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:25,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:25,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:25,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:25,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:25,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:25,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:25,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:25,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:25,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:11:25,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:25,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:25,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:25,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 03:11:25,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:25,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-25 03:11:25,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:25,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:11:25,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:25,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 03:11:25,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:25,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:25,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:25,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:25,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:11:25,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:25,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-25 03:11:25,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:25,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:25,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:25,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:11:25,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:26,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:26,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:26,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:26,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:11:26,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:26,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 03:11:26,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:26,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:11:26,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:26,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 03:11:26,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:26,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:26,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:26,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:26,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:26,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:26,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 03:11:26,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:26,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:26,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:26,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:26,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:26,215 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 03:11:26,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [271919041] [2020-09-25 03:11:26,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:26,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 03:11:26,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375729095] [2020-09-25 03:11:26,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 03:11:26,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:26,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 03:11:26,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-09-25 03:11:26,219 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 14 states. [2020-09-25 03:11:26,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:26,525 INFO L93 Difference]: Finished difference Result 100 states and 108 transitions. [2020-09-25 03:11:26,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 03:11:26,526 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 43 [2020-09-25 03:11:26,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:26,527 INFO L225 Difference]: With dead ends: 100 [2020-09-25 03:11:26,527 INFO L226 Difference]: Without dead ends: 73 [2020-09-25 03:11:26,532 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2020-09-25 03:11:26,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-25 03:11:26,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 59. [2020-09-25 03:11:26,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-25 03:11:26,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2020-09-25 03:11:26,550 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 43 [2020-09-25 03:11:26,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:26,551 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2020-09-25 03:11:26,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 03:11:26,551 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2020-09-25 03:11:26,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-25 03:11:26,556 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:26,556 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:26,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 03:11:26,557 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:26,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:26,557 INFO L82 PathProgramCache]: Analyzing trace with hash 632706808, now seen corresponding path program 1 times [2020-09-25 03:11:26,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:26,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [109815835] [2020-09-25 03:11:26,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:26,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:26,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:26,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:27,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:27,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 03:11:27,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:11:27,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 849 [2020-09-25 03:11:27,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:27,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:11:27,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-25 03:11:27,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:11:27,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:27,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:27,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:27,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:27,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:27,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:27,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:27,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:27,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:27,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:27,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:27,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:27,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:27,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:11:27,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:27,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:27,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:27,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 03:11:27,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:27,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-09-25 03:11:27,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:27,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:11:27,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 03:11:27,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:11:27,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:27,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:27,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:27,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:27,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:27,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 03:11:27,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:27,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-09-25 03:11:27,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:27,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:11:27,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 03:11:27,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:11:27,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:28,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:28,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:28,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:28,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:11:28,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:28,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 03:11:28,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:28,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:28,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:28,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:11:28,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:28,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:28,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:28,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:28,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:28,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:11:28,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:28,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 03:11:28,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:28,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:11:28,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:28,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 03:11:28,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:28,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:28,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:28,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:28,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:28,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:28,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:28,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 03:11:28,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:28,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:28,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:28,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:28,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:28,354 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-25 03:11:28,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [109815835] [2020-09-25 03:11:28,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:28,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 03:11:28,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800784031] [2020-09-25 03:11:28,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 03:11:28,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:28,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 03:11:28,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:11:28,357 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand 11 states. [2020-09-25 03:11:28,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:28,559 INFO L93 Difference]: Finished difference Result 103 states and 110 transitions. [2020-09-25 03:11:28,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 03:11:28,560 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 52 [2020-09-25 03:11:28,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:28,562 INFO L225 Difference]: With dead ends: 103 [2020-09-25 03:11:28,562 INFO L226 Difference]: Without dead ends: 79 [2020-09-25 03:11:28,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-09-25 03:11:28,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-25 03:11:28,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 76. [2020-09-25 03:11:28,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-25 03:11:28,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 80 transitions. [2020-09-25 03:11:28,570 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 80 transitions. Word has length 52 [2020-09-25 03:11:28,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:28,571 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 80 transitions. [2020-09-25 03:11:28,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 03:11:28,571 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 80 transitions. [2020-09-25 03:11:28,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-25 03:11:28,572 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:28,573 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:28,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 03:11:28,573 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:28,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:28,573 INFO L82 PathProgramCache]: Analyzing trace with hash 444280, now seen corresponding path program 2 times [2020-09-25 03:11:28,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:28,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [435093708] [2020-09-25 03:11:28,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:28,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:28,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:28,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:28,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:29,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:29,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:29,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:29,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 03:11:29,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:11:29,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1330 [2020-09-25 03:11:29,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:29,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:11:29,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-25 03:11:29,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 03:11:29,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:29,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:29,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:29,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:29,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:29,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:29,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:11:29,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:29,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:29,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:29,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:29,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:29,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:11:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:30,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:30,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:30,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 03:11:30,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:30,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 404 [2020-09-25 03:11:30,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:30,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:11:30,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:30,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 03:11:30,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:30,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:30,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:30,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:30,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 03:11:30,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:30,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-09-25 03:11:30,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:30,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:11:30,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:30,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 03:11:30,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:30,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:30,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:30,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:30,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:30,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:11:30,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:30,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-25 03:11:30,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:30,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:30,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:30,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:11:30,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:31,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:31,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:31,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:31,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:11:31,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:31,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 03:11:31,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:31,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:11:31,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:31,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 03:11:31,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:31,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:31,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:31,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:31,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:31,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:31,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 03:11:31,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:31,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:31,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:31,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:31,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:31,244 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-25 03:11:31,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [435093708] [2020-09-25 03:11:31,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:31,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 03:11:31,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836216158] [2020-09-25 03:11:31,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 03:11:31,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:31,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 03:11:31,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-09-25 03:11:31,252 INFO L87 Difference]: Start difference. First operand 76 states and 80 transitions. Second operand 17 states. [2020-09-25 03:11:31,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:31,652 INFO L93 Difference]: Finished difference Result 112 states and 120 transitions. [2020-09-25 03:11:31,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-25 03:11:31,654 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 52 [2020-09-25 03:11:31,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:31,656 INFO L225 Difference]: With dead ends: 112 [2020-09-25 03:11:31,656 INFO L226 Difference]: Without dead ends: 85 [2020-09-25 03:11:31,657 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2020-09-25 03:11:31,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-09-25 03:11:31,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 65. [2020-09-25 03:11:31,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-09-25 03:11:31,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2020-09-25 03:11:31,669 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 52 [2020-09-25 03:11:31,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:31,670 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2020-09-25 03:11:31,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 03:11:31,670 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2020-09-25 03:11:31,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 03:11:31,673 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:31,673 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:31,673 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 03:11:31,674 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:31,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:31,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1151520796, now seen corresponding path program 1 times [2020-09-25 03:11:31,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:31,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [778504076] [2020-09-25 03:11:31,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:31,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:31,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:32,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:32,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 03:11:32,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:11:32,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1184 [2020-09-25 03:11:32,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:32,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:11:32,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 03:11:32,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 03:11:32,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:32,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:32,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:32,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:32,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:32,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:32,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:32,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:32,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:32,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:32,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:32,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:32,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:32,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:11:32,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:32,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:33,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:33,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-25 03:11:33,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:33,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 426 [2020-09-25 03:11:33,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:33,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:11:33,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-25 03:11:33,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 03:11:33,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:33,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:33,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:33,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:33,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 03:11:33,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:33,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 330 [2020-09-25 03:11:33,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:33,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:11:33,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 03:11:33,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 03:11:33,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:33,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:33,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:33,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:33,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:33,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 03:11:33,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:33,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-25 03:11:33,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:33,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:11:33,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:33,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 03:11:33,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:34,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:34,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:34,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:34,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:11:34,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:34,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 03:11:34,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:34,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:34,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:34,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:11:34,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:34,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:34,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:34,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:34,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:11:34,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:34,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 03:11:34,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:34,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:11:34,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:34,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 03:11:34,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:34,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:34,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:34,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:34,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:34,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:34,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:34,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 03:11:34,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:34,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:34,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:34,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:34,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:34,440 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 03:11:34,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [778504076] [2020-09-25 03:11:34,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:34,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 03:11:34,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120426828] [2020-09-25 03:11:34,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 03:11:34,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:34,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 03:11:34,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-09-25 03:11:34,443 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 14 states. [2020-09-25 03:11:34,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:34,787 INFO L93 Difference]: Finished difference Result 115 states and 122 transitions. [2020-09-25 03:11:34,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 03:11:34,788 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 61 [2020-09-25 03:11:34,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:34,789 INFO L225 Difference]: With dead ends: 115 [2020-09-25 03:11:34,789 INFO L226 Difference]: Without dead ends: 91 [2020-09-25 03:11:34,790 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2020-09-25 03:11:34,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-25 03:11:34,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 88. [2020-09-25 03:11:34,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-09-25 03:11:34,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 92 transitions. [2020-09-25 03:11:34,797 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 92 transitions. Word has length 61 [2020-09-25 03:11:34,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:34,797 INFO L479 AbstractCegarLoop]: Abstraction has 88 states and 92 transitions. [2020-09-25 03:11:34,797 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 03:11:34,797 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 92 transitions. [2020-09-25 03:11:34,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 03:11:34,798 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:34,798 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:34,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 03:11:34,799 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:34,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:34,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1783783324, now seen corresponding path program 2 times [2020-09-25 03:11:34,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:34,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1743730918] [2020-09-25 03:11:34,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:34,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:34,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:35,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:35,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:35,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:36,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:36,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:36,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 03:11:36,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 03:11:36,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1987 [2020-09-25 03:11:36,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:36,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:11:36,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 03:11:36,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 03:11:36,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:36,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:36,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:36,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:36,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:36,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:36,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:36,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:36,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:36,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:36,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:36,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:36,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:36,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:11:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:36,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:37,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:37,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-25 03:11:37,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:37,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 513 [2020-09-25 03:11:37,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:37,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 03:11:37,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:37,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 03:11:37,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:37,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:37,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:37,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:37,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 03:11:37,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:37,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-09-25 03:11:37,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:37,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:11:37,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:37,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 03:11:37,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:37,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:37,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:37,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:38,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:38,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 03:11:38,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:38,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-09-25 03:11:38,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:38,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:11:38,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:38,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 03:11:38,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:38,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:38,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:38,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:38,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:11:38,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:38,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 03:11:38,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:38,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:38,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:38,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:11:38,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:38,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:38,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:38,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:38,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:11:38,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:38,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 03:11:38,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:38,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:11:38,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:38,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 03:11:38,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:38,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:38,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:38,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:38,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:38,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:38,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 03:11:38,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:38,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:38,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:38,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:38,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:38,541 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 03:11:38,542 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1743730918] [2020-09-25 03:11:38,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:38,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 03:11:38,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141710424] [2020-09-25 03:11:38,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 03:11:38,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:38,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 03:11:38,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2020-09-25 03:11:38,546 INFO L87 Difference]: Start difference. First operand 88 states and 92 transitions. Second operand 20 states. [2020-09-25 03:11:39,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:39,131 INFO L93 Difference]: Finished difference Result 126 states and 135 transitions. [2020-09-25 03:11:39,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 03:11:39,133 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 61 [2020-09-25 03:11:39,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:39,136 INFO L225 Difference]: With dead ends: 126 [2020-09-25 03:11:39,136 INFO L226 Difference]: Without dead ends: 99 [2020-09-25 03:11:39,137 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=81, Invalid=849, Unknown=0, NotChecked=0, Total=930 [2020-09-25 03:11:39,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-09-25 03:11:39,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 71. [2020-09-25 03:11:39,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-25 03:11:39,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2020-09-25 03:11:39,148 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 61 [2020-09-25 03:11:39,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:39,148 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2020-09-25 03:11:39,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-25 03:11:39,148 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2020-09-25 03:11:39,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 03:11:39,151 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:39,151 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:39,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 03:11:39,152 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:39,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:39,153 INFO L82 PathProgramCache]: Analyzing trace with hash -756456142, now seen corresponding path program 3 times [2020-09-25 03:11:39,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:39,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113160060] [2020-09-25 03:11:39,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:39,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:39,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:39,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:40,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:40,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:41,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:42,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:43,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:43,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 03:11:43,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 03:11:43,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4794 [2020-09-25 03:11:43,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:43,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 03:11:43,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-25 03:11:43,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:11:43,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:44,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:44,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:44,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:44,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:44,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:44,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:44,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:44,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:44,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:44,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:44,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:44,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:44,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:11:44,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:44,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:44,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:45,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:45,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 03:11:45,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:11:45,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1088 [2020-09-25 03:11:45,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:45,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 03:11:45,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:45,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 03:11:45,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:45,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:45,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:45,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:45,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-25 03:11:45,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:45,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 430 [2020-09-25 03:11:45,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:45,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 03:11:45,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:45,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 03:11:45,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:45,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:45,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:45,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:45,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 03:11:45,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:45,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-09-25 03:11:45,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:45,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:11:45,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:45,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 03:11:45,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:46,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:46,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:46,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:46,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:46,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 03:11:46,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:46,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-09-25 03:11:46,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:46,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:11:46,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:46,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 03:11:46,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:46,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:46,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:46,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:46,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:11:46,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:46,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 03:11:46,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:46,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:46,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:46,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:11:46,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:46,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:46,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:46,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:46,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:46,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:11:46,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:46,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 03:11:46,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:46,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:11:46,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:46,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 03:11:46,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:46,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:46,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:46,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:46,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:46,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:46,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:46,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 03:11:46,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:46,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:46,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:46,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:46,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:46,804 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-25 03:11:46,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113160060] [2020-09-25 03:11:46,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:46,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 03:11:46,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281151870] [2020-09-25 03:11:46,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 03:11:46,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:46,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 03:11:46,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-09-25 03:11:46,807 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand 23 states. [2020-09-25 03:11:47,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:47,506 INFO L93 Difference]: Finished difference Result 135 states and 143 transitions. [2020-09-25 03:11:47,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 03:11:47,509 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 70 [2020-09-25 03:11:47,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:47,510 INFO L225 Difference]: With dead ends: 135 [2020-09-25 03:11:47,510 INFO L226 Difference]: Without dead ends: 109 [2020-09-25 03:11:47,511 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=87, Invalid=1035, Unknown=0, NotChecked=0, Total=1122 [2020-09-25 03:11:47,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-25 03:11:47,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 101. [2020-09-25 03:11:47,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-25 03:11:47,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 105 transitions. [2020-09-25 03:11:47,517 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 105 transitions. Word has length 70 [2020-09-25 03:11:47,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:47,517 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 105 transitions. [2020-09-25 03:11:47,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 03:11:47,517 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 105 transitions. [2020-09-25 03:11:47,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-25 03:11:47,518 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:47,519 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:47,519 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 03:11:47,519 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:47,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:47,519 INFO L82 PathProgramCache]: Analyzing trace with hash -242092146, now seen corresponding path program 3 times [2020-09-25 03:11:47,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:47,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1034847252] [2020-09-25 03:11:47,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:47,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:47,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:47,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:48,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:48,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:48,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:49,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:49,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:50,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:52,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:52,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-09-25 03:11:52,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 03:11:52,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 03:11:52,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:52,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 03:11:52,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-25 03:11:52,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:11:52,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:52,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:52,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:52,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:52,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:52,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:52,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:52,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:52,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:52,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:52,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:52,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:52,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:11:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:52,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:52,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:53,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:55,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:55,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 03:11:55,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:11:55,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2533 [2020-09-25 03:11:55,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:55,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 03:11:55,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-09-25 03:11:55,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:11:55,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:55,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:55,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:55,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:55,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:55,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 03:11:55,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:11:55,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 781 [2020-09-25 03:11:55,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:55,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 03:11:55,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:55,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 03:11:55,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:55,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:56,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:56,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:56,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-25 03:11:56,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:56,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 377 [2020-09-25 03:11:56,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:56,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 03:11:56,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:56,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 03:11:56,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:56,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:56,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:56,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:56,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 03:11:56,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:56,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-25 03:11:56,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:56,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:11:56,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:56,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 03:11:56,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:56,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:56,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:56,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:56,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 03:11:56,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:56,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-25 03:11:56,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:56,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:11:56,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:56,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 03:11:56,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:56,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:57,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:57,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:57,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:57,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:11:57,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:57,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-25 03:11:57,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:57,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:57,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:57,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:11:57,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:57,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:57,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:57,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:57,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:57,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:11:57,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:57,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 03:11:57,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:57,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:11:57,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:57,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 03:11:57,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:57,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:57,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:57,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:57,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:57,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:57,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:11:57,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:57,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:57,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:57,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:57,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:57,425 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 9 proven. 51 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-09-25 03:11:57,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1034847252] [2020-09-25 03:11:57,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:57,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 03:11:57,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478572891] [2020-09-25 03:11:57,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 03:11:57,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:57,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 03:11:57,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-09-25 03:11:57,427 INFO L87 Difference]: Start difference. First operand 101 states and 105 transitions. Second operand 23 states. [2020-09-25 03:11:58,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:58,164 INFO L93 Difference]: Finished difference Result 117 states and 122 transitions. [2020-09-25 03:11:58,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 03:11:58,165 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 79 [2020-09-25 03:11:58,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:58,165 INFO L225 Difference]: With dead ends: 117 [2020-09-25 03:11:58,165 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 03:11:58,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=87, Invalid=1035, Unknown=0, NotChecked=0, Total=1122 [2020-09-25 03:11:58,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 03:11:58,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 03:11:58,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 03:11:58,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 03:11:58,168 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 79 [2020-09-25 03:11:58,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:58,169 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 03:11:58,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 03:11:58,169 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 03:11:58,169 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 03:11:58,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 03:11:58,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 03:11:58,213 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 03:11:58,214 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 03:11:58,214 INFO L268 CegarLoopResult]: For program point id2FINAL(lines 14 19) no Hoare annotation was computed. [2020-09-25 03:11:58,214 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 03:11:58,214 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-25 03:11:58,214 INFO L271 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-09-25 03:11:58,214 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-09-25 03:11:58,214 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 03:11:58,215 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-09-25 03:11:58,215 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-25 03:11:58,215 INFO L268 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-09-25 03:11:58,215 INFO L268 CegarLoopResult]: For program point id2EXIT(lines 14 19) no Hoare annotation was computed. [2020-09-25 03:11:58,215 INFO L271 CegarLoopResult]: At program point id2ENTRY(lines 14 19) the Hoare annotation is: true [2020-09-25 03:11:58,215 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 03:11:58,215 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 03:11:58,216 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 03:11:58,216 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 03:11:58,216 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2020-09-25 03:11:58,217 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 21 27) the Hoare annotation is: true [2020-09-25 03:11:58,217 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-25 03:11:58,217 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 21 27) no Hoare annotation was computed. [2020-09-25 03:11:58,217 INFO L268 CegarLoopResult]: For program point L24(lines 24 26) no Hoare annotation was computed. [2020-09-25 03:11:58,217 INFO L271 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: true [2020-09-25 03:11:58,217 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 03:11:58,218 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-09-25 03:11:58,218 INFO L268 CegarLoopResult]: For program point L24-2(lines 21 27) no Hoare annotation was computed. [2020-09-25 03:11:58,218 INFO L268 CegarLoopResult]: For program point L23-2(line 23) no Hoare annotation was computed. [2020-09-25 03:11:58,218 INFO L268 CegarLoopResult]: For program point idFINAL(lines 7 12) no Hoare annotation was computed. [2020-09-25 03:11:58,218 INFO L268 CegarLoopResult]: For program point idEXIT(lines 7 12) no Hoare annotation was computed. [2020-09-25 03:11:58,220 INFO L271 CegarLoopResult]: At program point idENTRY(lines 7 12) the Hoare annotation is: true [2020-09-25 03:11:58,220 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-25 03:11:58,220 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 03:11:58,220 INFO L271 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: true [2020-09-25 03:11:58,220 INFO L268 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed. [2020-09-25 03:11:58,221 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-25 03:11:58,221 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-09-25 03:11:58,221 INFO L268 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2020-09-25 03:11:58,221 INFO L268 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-09-25 03:11:58,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:11:58 BoogieIcfgContainer [2020-09-25 03:11:58,229 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 03:11:58,233 INFO L168 Benchmark]: Toolchain (without parser) took 41176.53 ms. Allocated memory was 140.5 MB in the beginning and 485.0 MB in the end (delta: 344.5 MB). Free memory was 102.9 MB in the beginning and 399.2 MB in the end (delta: -296.3 MB). Peak memory consumption was 48.2 MB. Max. memory is 7.1 GB. [2020-09-25 03:11:58,234 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 03:11:58,234 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.58 ms. Allocated memory is still 140.5 MB. Free memory was 102.3 MB in the beginning and 92.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-09-25 03:11:58,235 INFO L168 Benchmark]: Boogie Preprocessor took 110.53 ms. Allocated memory was 140.5 MB in the beginning and 200.8 MB in the end (delta: 60.3 MB). Free memory was 92.7 MB in the beginning and 179.9 MB in the end (delta: -87.2 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-09-25 03:11:58,236 INFO L168 Benchmark]: RCFGBuilder took 344.69 ms. Allocated memory is still 200.8 MB. Free memory was 179.9 MB in the beginning and 166.4 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2020-09-25 03:11:58,236 INFO L168 Benchmark]: TraceAbstraction took 40337.03 ms. Allocated memory was 200.8 MB in the beginning and 485.0 MB in the end (delta: 284.2 MB). Free memory was 165.7 MB in the beginning and 399.2 MB in the end (delta: -233.5 MB). Peak memory consumption was 50.7 MB. Max. memory is 7.1 GB. [2020-09-25 03:11:58,242 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 363.58 ms. Allocated memory is still 140.5 MB. Free memory was 102.3 MB in the beginning and 92.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.53 ms. Allocated memory was 140.5 MB in the beginning and 200.8 MB in the end (delta: 60.3 MB). Free memory was 92.7 MB in the beginning and 179.9 MB in the end (delta: -87.2 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 344.69 ms. Allocated memory is still 200.8 MB. Free memory was 179.9 MB in the beginning and 166.4 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 40337.03 ms. Allocated memory was 200.8 MB in the beginning and 485.0 MB in the end (delta: 284.2 MB). Free memory was 165.7 MB in the beginning and 399.2 MB in the end (delta: -233.5 MB). Peak memory consumption was 50.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: 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 5 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 40.1s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 559 SDtfs, 131 SDslu, 5863 SDs, 0 SdLazy, 2018 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 391 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 95 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 11 PreInvPairs, 11 NumberOfFragments, 9 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 35.3s InterpolantComputationTime, 604 NumberOfCodeBlocks, 604 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 591 ConstructedInterpolants, 0 QuantifiedInterpolants, 121737 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 168/331 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...