/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=DEEPEST --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/Fibonacci01-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:51:54,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:51:54,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:51:54,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:51:54,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:51:54,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:51:54,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:51:54,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:51:54,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:51:54,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:51:54,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:51:54,585 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:51:54,586 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:51:54,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:51:54,588 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:51:54,590 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:51:54,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:51:54,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:51:54,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:51:54,599 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:51:54,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:51:54,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:51:54,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:51:54,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:51:54,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:51:54,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:51:54,611 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:51:54,612 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:51:54,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:51:54,614 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:51:54,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:51:54,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:51:54,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:51:54,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:51:54,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:51:54,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:51:54,619 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:51:54,620 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:51:54,620 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:51:54,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:51:54,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:51:54,623 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 00:51:54,650 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:51:54,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:51:54,652 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:51:54,652 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:51:54,652 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:51:54,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:51:54,653 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:51:54,653 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:51:54,653 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:51:54,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:51:54,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:51:54,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:51:54,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:51:54,654 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:51:54,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:51:54,655 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:51:54,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:51:54,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:51:54,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:51:54,655 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:51:54,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:51:54,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:51:54,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:51:54,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:51:54,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:51:54,657 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:51:54,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:51:54,657 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:51:54,657 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:51:54,658 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 00:51:55,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:51:55,184 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:51:55,189 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:51:55,192 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:51:55,194 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:51:55,195 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Fibonacci01-1.c [2020-09-25 00:51:55,289 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cde8fc262/07b5b5529c9b41969816cf773a2b1af1/FLAG107379071 [2020-09-25 00:51:55,862 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:51:55,863 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Fibonacci01-1.c [2020-09-25 00:51:55,873 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cde8fc262/07b5b5529c9b41969816cf773a2b1af1/FLAG107379071 [2020-09-25 00:51:56,221 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cde8fc262/07b5b5529c9b41969816cf773a2b1af1 [2020-09-25 00:51:56,238 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:51:56,244 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:51:56,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:51:56,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:51:56,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:51:56,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:51:56" (1/1) ... [2020-09-25 00:51:56,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@605628e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:56, skipping insertion in model container [2020-09-25 00:51:56,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:51:56" (1/1) ... [2020-09-25 00:51:56,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:51:56,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:51:56,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:51:56,515 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:51:56,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:51:56,555 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:51:56,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:56 WrapperNode [2020-09-25 00:51:56,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:51:56,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:51:56,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:51:56,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:51:56,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:56" (1/1) ... [2020-09-25 00:51:56,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:56" (1/1) ... [2020-09-25 00:51:56,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:56" (1/1) ... [2020-09-25 00:51:56,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:56" (1/1) ... [2020-09-25 00:51:56,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:56" (1/1) ... [2020-09-25 00:51:56,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:56" (1/1) ... [2020-09-25 00:51:56,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:56" (1/1) ... [2020-09-25 00:51:56,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:51:56,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:51:56,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:51:56,667 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:51:56,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:56" (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 00:51:56,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:51:56,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:51:56,747 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2020-09-25 00:51:56,748 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:51:56,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:51:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:51:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2020-09-25 00:51:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:51:56,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:51:56,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:51:56,981 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:51:56,981 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 00:51:56,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:51:56 BoogieIcfgContainer [2020-09-25 00:51:56,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:51:56,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:51:56,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:51:56,993 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:51:56,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:51:56" (1/3) ... [2020-09-25 00:51:56,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@721b8054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:51:56, skipping insertion in model container [2020-09-25 00:51:56,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:56" (2/3) ... [2020-09-25 00:51:56,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@721b8054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:51:56, skipping insertion in model container [2020-09-25 00:51:56,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:51:56" (3/3) ... [2020-09-25 00:51:56,998 INFO L109 eAbstractionObserver]: Analyzing ICFG Fibonacci01-1.c [2020-09-25 00:51:57,008 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:51:57,019 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:51:57,040 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:51:57,068 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:51:57,068 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:51:57,069 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:51:57,069 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:51:57,069 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:51:57,069 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:51:57,069 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:51:57,069 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:51:57,090 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-09-25 00:51:57,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-25 00:51:57,098 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:51:57,099 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:51:57,099 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:51:57,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:51:57,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1379859160, now seen corresponding path program 1 times [2020-09-25 00:51:57,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:51:57,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [136183535] [2020-09-25 00:51:57,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:51:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:57,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:57,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:57,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 00:51:57,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:57,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-09-25 00:51:57,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:57,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:51:57,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:51:57,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 00:51:57,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:51:57,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:51:57,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:57,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:57,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:57,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:51:57,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:57,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:51:57,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:57,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:51:57,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:57,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:51:57,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:57,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:51:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:57,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:57,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:57,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:51:57,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:57,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 00:51:57,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:57,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:51:57,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:57,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:51:57,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:57,643 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 00:51:57,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [136183535] [2020-09-25 00:51:57,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:51:57,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 00:51:57,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795700475] [2020-09-25 00:51:57,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 00:51:57,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:51:57,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 00:51:57,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:51:57,680 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 7 states. [2020-09-25 00:51:57,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:51:57,904 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2020-09-25 00:51:57,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 00:51:57,906 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-25 00:51:57,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:51:57,921 INFO L225 Difference]: With dead ends: 50 [2020-09-25 00:51:57,922 INFO L226 Difference]: Without dead ends: 31 [2020-09-25 00:51:57,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:51:57,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-09-25 00:51:57,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-09-25 00:51:57,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-25 00:51:57,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2020-09-25 00:51:57,990 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 19 [2020-09-25 00:51:57,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:51:57,990 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2020-09-25 00:51:57,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 00:51:57,991 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2020-09-25 00:51:57,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-25 00:51:57,993 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:51:57,994 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] [2020-09-25 00:51:57,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:51:57,994 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:51:57,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:51:57,995 INFO L82 PathProgramCache]: Analyzing trace with hash -2056866127, now seen corresponding path program 1 times [2020-09-25 00:51:57,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:51:57,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1823280160] [2020-09-25 00:51:57,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:51:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:58,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:58,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:58,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 00:51:58,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:58,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-09-25 00:51:58,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:58,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:51:58,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:51:58,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 00:51:58,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:58,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:51:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:58,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:58,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:58,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:51:58,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:58,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:51:58,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:58,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:51:58,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:58,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:51:58,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:58,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:51:58,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:58,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:58,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:58,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:51:58,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:58,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 00:51:58,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:58,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:51:58,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:58,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:51:58,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:58,341 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 00:51:58,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1823280160] [2020-09-25 00:51:58,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:51:58,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 00:51:58,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437194640] [2020-09-25 00:51:58,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 00:51:58,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:51:58,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 00:51:58,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:51:58,347 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 7 states. [2020-09-25 00:51:58,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:51:58,531 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2020-09-25 00:51:58,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 00:51:58,532 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-09-25 00:51:58,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:51:58,534 INFO L225 Difference]: With dead ends: 39 [2020-09-25 00:51:58,534 INFO L226 Difference]: Without dead ends: 33 [2020-09-25 00:51:58,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:51:58,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-25 00:51:58,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2020-09-25 00:51:58,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-25 00:51:58,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2020-09-25 00:51:58,544 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 20 [2020-09-25 00:51:58,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:51:58,545 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2020-09-25 00:51:58,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 00:51:58,545 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2020-09-25 00:51:58,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 00:51:58,547 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:51:58,547 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:51:58,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:51:58,548 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:51:58,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:51:58,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1274124978, now seen corresponding path program 1 times [2020-09-25 00:51:58,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:51:58,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [766877106] [2020-09-25 00:51:58,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:51:58,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:58,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:58,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:59,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:59,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 00:51:59,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:51:59,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 530 [2020-09-25 00:51:59,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:59,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:51:59,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 00:51:59,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:51:59,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:51:59,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:51:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:59,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:59,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:59,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:51:59,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:59,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:51:59,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:59,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:51:59,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:59,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:51:59,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:59,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:51:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:59,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:59,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:59,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 00:51:59,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:59,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 00:51:59,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:59,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:51:59,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 00:51:59,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:51:59,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:59,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:51:59,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:59,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:59,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:59,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:51:59,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:59,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 00:51:59,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:59,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:51:59,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:51:59,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:51:59,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:59,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 00:51:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:59,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:59,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:59,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:51:59,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:59,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:51:59,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:59,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:51:59,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:51:59,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:51:59,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:51:59,291 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 00:51:59,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [766877106] [2020-09-25 00:51:59,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:51:59,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 00:51:59,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330964579] [2020-09-25 00:51:59,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 00:51:59,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:51:59,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 00:51:59,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:51:59,301 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 6 states. [2020-09-25 00:51:59,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:51:59,422 INFO L93 Difference]: Finished difference Result 55 states and 66 transitions. [2020-09-25 00:51:59,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 00:51:59,423 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2020-09-25 00:51:59,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:51:59,425 INFO L225 Difference]: With dead ends: 55 [2020-09-25 00:51:59,425 INFO L226 Difference]: Without dead ends: 33 [2020-09-25 00:51:59,429 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:51:59,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-25 00:51:59,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-09-25 00:51:59,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-25 00:51:59,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-09-25 00:51:59,447 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 36 [2020-09-25 00:51:59,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:51:59,447 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-09-25 00:51:59,448 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 00:51:59,448 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-09-25 00:51:59,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-25 00:51:59,459 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:51:59,459 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:51:59,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:51:59,460 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:51:59,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:51:59,461 INFO L82 PathProgramCache]: Analyzing trace with hash -2043121517, now seen corresponding path program 1 times [2020-09-25 00:51:59,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:51:59,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2004453413] [2020-09-25 00:51:59,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:51:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:59,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:59,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:00,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:00,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 00:52:00,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:00,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1018 [2020-09-25 00:52:00,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:00,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:52:00,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:52:00,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 00:52:00,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:00,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:00,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:00,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:00,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:00,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:00,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:52:00,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:00,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:00,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:00,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:00,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:00,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:00,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:00,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:00,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:00,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:00,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:00,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 00:52:00,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:00,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 00:52:00,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:00,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 00:52:00,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:00,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:00,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:00,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:00,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:00,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:00,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:00,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 00:52:00,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:00,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:00,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:00,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:00,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:00,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:00,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:00,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:00,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:00,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:00,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:00,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 00:52:00,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:00,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:52:00,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:00,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:00,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:52:00,898 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 00:52:00,900 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2004453413] [2020-09-25 00:52:00,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:00,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 00:52:00,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669683671] [2020-09-25 00:52:00,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 00:52:00,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:00,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 00:52:00,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-25 00:52:00,905 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 12 states. [2020-09-25 00:52:01,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:01,277 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2020-09-25 00:52:01,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 00:52:01,279 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37 [2020-09-25 00:52:01,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:01,283 INFO L225 Difference]: With dead ends: 51 [2020-09-25 00:52:01,284 INFO L226 Difference]: Without dead ends: 45 [2020-09-25 00:52:01,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2020-09-25 00:52:01,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-25 00:52:01,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2020-09-25 00:52:01,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-25 00:52:01,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2020-09-25 00:52:01,304 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 37 [2020-09-25 00:52:01,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:01,306 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2020-09-25 00:52:01,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 00:52:01,307 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2020-09-25 00:52:01,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 00:52:01,311 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:01,311 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:01,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:52:01,314 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:01,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:01,314 INFO L82 PathProgramCache]: Analyzing trace with hash -693972664, now seen corresponding path program 1 times [2020-09-25 00:52:01,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:01,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1488798174] [2020-09-25 00:52:01,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:01,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:01,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:02,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:52:02,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:52:02,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 846 [2020-09-25 00:52:02,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:02,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:02,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 00:52:02,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 00:52:02,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:02,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:02,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:02,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:02,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:02,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:52:02,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:02,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:02,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:02,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:02,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:02,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:02,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:02,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 00:52:02,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:02,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 00:52:02,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:02,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:02,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:52:02,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 00:52:02,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:02,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:02,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:02,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:02,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:02,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:02,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 00:52:02,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:02,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:02,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:02,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:02,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:02,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:02,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:02,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:02,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:02,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 00:52:02,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:02,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:02,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:02,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:02,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:02,460 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 00:52:02,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1488798174] [2020-09-25 00:52:02,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:52:02,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:52:02,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372046122] [2020-09-25 00:52:02,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:52:02,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:02,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:52:02,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:52:02,465 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 5 states. [2020-09-25 00:52:02,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:02,571 INFO L93 Difference]: Finished difference Result 79 states and 103 transitions. [2020-09-25 00:52:02,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:52:02,572 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-09-25 00:52:02,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:02,574 INFO L225 Difference]: With dead ends: 79 [2020-09-25 00:52:02,574 INFO L226 Difference]: Without dead ends: 47 [2020-09-25 00:52:02,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:52:02,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-09-25 00:52:02,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-09-25 00:52:02,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-09-25 00:52:02,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 56 transitions. [2020-09-25 00:52:02,597 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 56 transitions. Word has length 38 [2020-09-25 00:52:02,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:02,599 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 56 transitions. [2020-09-25 00:52:02,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:52:02,600 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2020-09-25 00:52:02,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 00:52:02,603 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:02,604 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 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] [2020-09-25 00:52:02,604 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:52:02,604 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:02,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:02,605 INFO L82 PathProgramCache]: Analyzing trace with hash 847598467, now seen corresponding path program 2 times [2020-09-25 00:52:02,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:02,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1707427826] [2020-09-25 00:52:02,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:02,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:03,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:06,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:06,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 00:52:06,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:52:06,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4250 [2020-09-25 00:52:06,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:06,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:52:06,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 00:52:06,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 00:52:06,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-09-25 00:52:06,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:06,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:06,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:06,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:06,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:06,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:52:06,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:06,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:06,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:06,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:06,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:52:06,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:06,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:06,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:06,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:07,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:07,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:07,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:07,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 00:52:07,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:52:07,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 864 [2020-09-25 00:52:07,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:07,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:52:07,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:52:07,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 00:52:07,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:07,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:07,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:07,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:07,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:07,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:08,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:08,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:08,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:08,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-09-25 00:52:08,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:08,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:08,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:08,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 00:52:08,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:08,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:08,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:08,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:08,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:08,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:08,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:08,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 00:52:08,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:08,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:08,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:08,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:08,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:08,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:08,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:08,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:08,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:08,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:08,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:52:08,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:08,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:08,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:08,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:08,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:08,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:52:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:08,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:08,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:08,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:08,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:08,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:52:08,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:08,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:08,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:08,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:08,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:08,139 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 28 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 00:52:08,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1707427826] [2020-09-25 00:52:08,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:08,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 00:52:08,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779697346] [2020-09-25 00:52:08,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:52:08,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:08,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:52:08,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:52:08,144 INFO L87 Difference]: Start difference. First operand 47 states and 56 transitions. Second operand 8 states. [2020-09-25 00:52:08,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:08,286 INFO L93 Difference]: Finished difference Result 87 states and 111 transitions. [2020-09-25 00:52:08,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 00:52:08,287 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2020-09-25 00:52:08,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:08,288 INFO L225 Difference]: With dead ends: 87 [2020-09-25 00:52:08,288 INFO L226 Difference]: Without dead ends: 49 [2020-09-25 00:52:08,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-25 00:52:08,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-09-25 00:52:08,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-09-25 00:52:08,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-09-25 00:52:08,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2020-09-25 00:52:08,306 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 54 [2020-09-25 00:52:08,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:08,306 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2020-09-25 00:52:08,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:52:08,307 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2020-09-25 00:52:08,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-25 00:52:08,310 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:08,311 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 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] [2020-09-25 00:52:08,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 00:52:08,311 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:08,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:08,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1275966376, now seen corresponding path program 3 times [2020-09-25 00:52:08,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:08,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [34966916] [2020-09-25 00:52:08,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:08,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:08,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:08,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:08,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:13,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:13,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 00:52:13,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:13,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 00:52:13,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:13,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:52:13,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:52:13,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 00:52:13,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:13,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:13,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:13,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:13,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:13,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:13,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:13,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:13,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:13,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:13,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:13,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:13,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:13,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:13,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:13,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:13,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:16,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:16,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 00:52:16,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:16,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3551 [2020-09-25 00:52:16,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:16,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 00:52:16,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:16,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 00:52:16,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:16,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:16,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:17,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:17,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:17,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:17,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:17,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-25 00:52:17,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:17,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:52:17,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:17,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 00:52:17,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:17,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:17,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:17,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:17,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:17,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:17,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 00:52:17,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:17,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:17,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:17,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:17,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:17,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:17,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:17,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:17,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:17,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:17,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:17,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:52:17,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:17,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:52:17,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:17,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:17,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:17,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:52:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:17,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:17,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:17,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:17,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:17,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 00:52:17,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:17,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:17,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:17,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:17,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:17,256 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 8 proven. 28 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-25 00:52:17,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [34966916] [2020-09-25 00:52:17,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:17,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 00:52:17,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598178066] [2020-09-25 00:52:17,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 00:52:17,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:17,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 00:52:17,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-09-25 00:52:17,259 INFO L87 Difference]: Start difference. First operand 49 states and 57 transitions. Second operand 15 states. [2020-09-25 00:52:17,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:17,700 INFO L93 Difference]: Finished difference Result 67 states and 82 transitions. [2020-09-25 00:52:17,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 00:52:17,700 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 55 [2020-09-25 00:52:17,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:17,702 INFO L225 Difference]: With dead ends: 67 [2020-09-25 00:52:17,703 INFO L226 Difference]: Without dead ends: 61 [2020-09-25 00:52:17,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=127, Invalid=575, Unknown=0, NotChecked=0, Total=702 [2020-09-25 00:52:17,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-25 00:52:17,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 57. [2020-09-25 00:52:17,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-09-25 00:52:17,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2020-09-25 00:52:17,714 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 55 [2020-09-25 00:52:17,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:17,715 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2020-09-25 00:52:17,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 00:52:17,715 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2020-09-25 00:52:17,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-09-25 00:52:17,717 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:17,717 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:17,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 00:52:17,717 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:17,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:17,718 INFO L82 PathProgramCache]: Analyzing trace with hash -778718797, now seen corresponding path program 4 times [2020-09-25 00:52:17,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:17,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1313535280] [2020-09-25 00:52:17,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:17,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:17,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:17,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:17,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:17,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:18,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:18,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:20,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:22,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:22,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 00:52:22,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 00:52:22,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 00:52:22,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:52:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 00:52:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 00:52:22,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:22,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:22,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:22,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:22,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:22,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:22,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:22,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:22,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:22,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:22,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:22,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:22,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:22,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:22,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:22,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:22,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:22,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:22,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:22,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:23,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:23,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:23,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:24,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:27,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:27,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 00:52:27,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 00:52:27,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 00:52:27,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:27,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:52:27,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:52:27,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 00:52:27,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:27,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:27,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:27,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:27,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:27,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:27,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:27,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:27,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-25 00:52:27,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:27,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:27,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:27,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 00:52:27,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:27,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:27,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:27,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:27,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:27,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:27,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:27,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 00:52:27,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:27,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:27,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:27,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:27,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:28,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:28,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:28,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:28,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:28,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:28,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:28,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:52:28,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:28,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:28,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:28,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:28,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:28,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:52:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:28,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:28,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:28,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:28,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:28,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:28,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:30,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:30,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 00:52:30,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 00:52:30,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2840 [2020-09-25 00:52:30,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:30,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:30,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:30,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 00:52:30,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:30,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:30,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:30,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:30,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:30,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:30,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 00:52:30,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:30,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:30,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:30,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 00:52:30,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:30,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:30,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:30,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:30,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:30,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:30,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:30,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:52:30,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:30,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:30,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:30,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:30,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:30,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:30,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:30,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:30,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:30,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:30,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:52:30,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:30,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:30,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:30,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:30,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:30,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:52:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:30,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:30,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:30,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:30,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:30,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 00:52:30,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:30,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:30,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:30,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:30,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:31,021 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 81 proven. 65 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-09-25 00:52:31,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1313535280] [2020-09-25 00:52:31,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:31,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 00:52:31,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857720192] [2020-09-25 00:52:31,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:52:31,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:31,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:52:31,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:52:31,024 INFO L87 Difference]: Start difference. First operand 57 states and 72 transitions. Second operand 10 states. [2020-09-25 00:52:31,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:31,193 INFO L93 Difference]: Finished difference Result 112 states and 155 transitions. [2020-09-25 00:52:31,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 00:52:31,193 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 90 [2020-09-25 00:52:31,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:31,195 INFO L225 Difference]: With dead ends: 112 [2020-09-25 00:52:31,195 INFO L226 Difference]: Without dead ends: 64 [2020-09-25 00:52:31,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2020-09-25 00:52:31,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-09-25 00:52:31,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 58. [2020-09-25 00:52:31,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 00:52:31,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2020-09-25 00:52:31,204 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 90 [2020-09-25 00:52:31,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:31,205 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2020-09-25 00:52:31,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:52:31,205 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2020-09-25 00:52:31,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-09-25 00:52:31,207 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:31,207 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:31,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 00:52:31,208 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:31,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:31,208 INFO L82 PathProgramCache]: Analyzing trace with hash 237402259, now seen corresponding path program 5 times [2020-09-25 00:52:31,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:31,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [346333449] [2020-09-25 00:52:31,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:31,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:31,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:31,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:31,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:31,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:33,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:33,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:33,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:33,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:34,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:36,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-09-25 00:52:36,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 00:52:36,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 00:52:36,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:36,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:52:36,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 00:52:36,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 00:52:36,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:36,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:36,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:36,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:36,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:36,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:36,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:36,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:36,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:36,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:36,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:36,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:36,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:36,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:38,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:38,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:38,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:40,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:40,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:40,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:41,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 00:52:41,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-09-25 00:52:41,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 00:52:41,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:41,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:52:41,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:52:41,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 00:52:41,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:41,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:41,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:41,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:46,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:46,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 00:52:46,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 00:52:46,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 00:52:46,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:46,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:52:46,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:46,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 00:52:46,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:46,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:46,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:46,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:46,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:46,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:46,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:46,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:46,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:46,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 398 [2020-09-25 00:52:46,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:46,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:52:46,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:46,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 00:52:46,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:46,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:46,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:46,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:46,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:46,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:46,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 00:52:46,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:46,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:46,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:46,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:46,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:46,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:46,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:46,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:46,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:46,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:46,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:52:46,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:46,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:46,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:46,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:46,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:46,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:52:46,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:46,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:46,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:46,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:46,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:46,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:52:46,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:46,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:46,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:46,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:46,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:46,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 00:52:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:46,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:46,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:46,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:46,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:46,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:47,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:47,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:48,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:48,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:48,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:48,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:48,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:48,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking...