/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --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/Ackermann04.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:52:11,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:52:11,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:52:11,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:52:11,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:52:11,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:52:11,758 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:52:11,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:52:11,762 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:52:11,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:52:11,765 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:52:11,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:52:11,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:52:11,767 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:52:11,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:52:11,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:52:11,771 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:52:11,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:52:11,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:52:11,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:52:11,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:52:11,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:52:11,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:52:11,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:52:11,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:52:11,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:52:11,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:52:11,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:52:11,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:52:11,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:52:11,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:52:11,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:52:11,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:52:11,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:52:11,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:52:11,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:52:11,792 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:52:11,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:52:11,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:52:11,794 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:52:11,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:52:11,795 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 08:52:11,822 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:52:11,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:52:11,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:52:11,824 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:52:11,824 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:52:11,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:52:11,825 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:52:11,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:52:11,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:52:11,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:52:11,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:52:11,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:52:11,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:52:11,826 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:52:11,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:52:11,827 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:52:11,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:52:11,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:52:11,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:52:11,828 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:52:11,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:52:11,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:52:11,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:52:11,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:52:11,829 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:52:11,829 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:52:11,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:52:11,829 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:52:11,830 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:52:11,830 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:52:12,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:52:12,379 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:52:12,384 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:52:12,386 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:52:12,388 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:52:12,389 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Ackermann04.c [2020-09-25 08:52:12,486 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/77036bc68/5a515b893a2441af9bcefc34cb62ba6a/FLAGdd5583f5e [2020-09-25 08:52:13,074 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:52:13,075 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Ackermann04.c [2020-09-25 08:52:13,084 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/77036bc68/5a515b893a2441af9bcefc34cb62ba6a/FLAGdd5583f5e [2020-09-25 08:52:13,395 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/77036bc68/5a515b893a2441af9bcefc34cb62ba6a [2020-09-25 08:52:13,419 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:52:13,426 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:52:13,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:52:13,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:52:13,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:52:13,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:52:13" (1/1) ... [2020-09-25 08:52:13,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75e37eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:13, skipping insertion in model container [2020-09-25 08:52:13,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:52:13" (1/1) ... [2020-09-25 08:52:13,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:52:13,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:52:13,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:52:13,738 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:52:13,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:52:13,772 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:52:13,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:13 WrapperNode [2020-09-25 08:52:13,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:52:13,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:52:13,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:52:13,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:52:13,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:13" (1/1) ... [2020-09-25 08:52:13,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:13" (1/1) ... [2020-09-25 08:52:13,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:13" (1/1) ... [2020-09-25 08:52:13,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:13" (1/1) ... [2020-09-25 08:52:13,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:13" (1/1) ... [2020-09-25 08:52:13,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:13" (1/1) ... [2020-09-25 08:52:13,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:13" (1/1) ... [2020-09-25 08:52:13,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:52:13,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:52:13,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:52:13,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:52:13,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:13" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:52:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:52:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:52:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ackermann [2020-09-25 08:52:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:52:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:52:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:52:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure ackermann [2020-09-25 08:52:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:52:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:52:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:52:14,224 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:52:14,224 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 08:52:14,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:52:14 BoogieIcfgContainer [2020-09-25 08:52:14,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:52:14,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:52:14,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:52:14,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:52:14,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:52:13" (1/3) ... [2020-09-25 08:52:14,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6dafbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:52:14, skipping insertion in model container [2020-09-25 08:52:14,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:13" (2/3) ... [2020-09-25 08:52:14,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6dafbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:52:14, skipping insertion in model container [2020-09-25 08:52:14,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:52:14" (3/3) ... [2020-09-25 08:52:14,241 INFO L109 eAbstractionObserver]: Analyzing ICFG Ackermann04.c [2020-09-25 08:52:14,256 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:52:14,270 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:52:14,301 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:52:14,340 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:52:14,341 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:52:14,341 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:52:14,341 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:52:14,341 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:52:14,342 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:52:14,342 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:52:14,342 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:52:14,369 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-09-25 08:52:14,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-25 08:52:14,380 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:52:14,382 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:52:14,382 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:52:14,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:52:14,391 INFO L82 PathProgramCache]: Analyzing trace with hash -852610024, now seen corresponding path program 1 times [2020-09-25 08:52:14,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:52:14,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [188920172] [2020-09-25 08:52:14,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:52:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:14,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:14,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:14,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 08:52:14,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:14,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-09-25 08:52:14,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:14,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:14,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:52:14,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 08:52:14,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 08:52:14,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:52:14,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:52:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:14,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:14,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:14,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:52:14,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:14,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:52:14,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:14,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:14,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:14,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:14,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:14,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:52:14,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 08:52:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:14,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:14,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:14,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:52:14,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:14,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 08:52:14,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:14,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:14,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:52:14,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:15,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:52:15,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 08:52:15,078 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 08:52:15,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [188920172] [2020-09-25 08:52:15,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:52:15,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:52:15,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817754396] [2020-09-25 08:52:15,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:52:15,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:52:15,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:52:15,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:52:15,110 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 5 states. [2020-09-25 08:52:15,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:52:15,263 INFO L93 Difference]: Finished difference Result 88 states and 110 transitions. [2020-09-25 08:52:15,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:52:15,265 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-09-25 08:52:15,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:52:15,281 INFO L225 Difference]: With dead ends: 88 [2020-09-25 08:52:15,281 INFO L226 Difference]: Without dead ends: 45 [2020-09-25 08:52:15,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:52:15,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-25 08:52:15,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-09-25 08:52:15,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-25 08:52:15,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2020-09-25 08:52:15,348 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 24 [2020-09-25 08:52:15,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:52:15,349 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2020-09-25 08:52:15,349 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:52:15,350 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2020-09-25 08:52:15,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 08:52:15,353 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:52:15,354 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:52:15,354 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:52:15,354 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:52:15,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:52:15,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1574290279, now seen corresponding path program 1 times [2020-09-25 08:52:15,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:52:15,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942469260] [2020-09-25 08:52:15,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:52:15,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:15,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:15,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:15,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:15,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 08:52:15,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:52:15,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 451 [2020-09-25 08:52:15,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:15,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:15,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:52:15,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 08:52:15,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 08:52:15,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 08:52:15,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:52:15,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:15,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:15,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:15,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:52:15,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:15,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:52:15,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:15,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:15,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:15,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:15,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:15,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:15,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 08:52:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:15,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:15,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:15,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 08:52:15,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:15,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 08:52:15,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:15,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:15,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:52:15,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:15,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:52:15,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:15,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:52:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:15,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:16,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:16,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:52:16,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:16,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 08:52:16,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:16,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:16,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:52:16,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:16,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:52:16,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:16,031 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 08:52:16,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1942469260] [2020-09-25 08:52:16,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:52:16,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 08:52:16,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164980333] [2020-09-25 08:52:16,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:52:16,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:52:16,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:52:16,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:52:16,037 INFO L87 Difference]: Start difference. First operand 45 states and 52 transitions. Second operand 6 states. [2020-09-25 08:52:16,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:52:16,152 INFO L93 Difference]: Finished difference Result 62 states and 75 transitions. [2020-09-25 08:52:16,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 08:52:16,153 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-09-25 08:52:16,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:52:16,157 INFO L225 Difference]: With dead ends: 62 [2020-09-25 08:52:16,157 INFO L226 Difference]: Without dead ends: 56 [2020-09-25 08:52:16,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:52:16,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-09-25 08:52:16,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-09-25 08:52:16,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-09-25 08:52:16,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions. [2020-09-25 08:52:16,172 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 34 [2020-09-25 08:52:16,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:52:16,173 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 69 transitions. [2020-09-25 08:52:16,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:52:16,173 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions. [2020-09-25 08:52:16,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-25 08:52:16,176 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:52:16,176 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:52:16,176 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:52:16,177 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:52:16,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:52:16,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1453709960, now seen corresponding path program 2 times [2020-09-25 08:52:16,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:52:16,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883557790] [2020-09-25 08:52:16,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:52:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:16,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:16,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:16,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:16,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 08:52:16,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:52:16,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-09-25 08:52:16,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:16,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:16,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:52:16,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 08:52:16,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 08:52:16,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:16,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:52:16,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:16,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:16,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:16,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:52:16,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:16,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:52:16,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:16,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:16,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:16,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:16,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:16,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:16,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 08:52:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:16,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:16,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:16,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:16,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 08:52:16,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:52:16,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-25 08:52:16,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:16,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:16,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:52:16,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:16,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 08:52:16,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:16,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:52:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:16,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:16,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:16,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:16,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 08:52:16,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:52:16,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-25 08:52:16,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:16,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:16,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:52:16,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:16,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 08:52:16,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:52:16,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:52:16,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:16,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:16,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:16,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:52:16,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:16,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:52:16,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:16,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:16,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:16,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:16,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:16,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-25 08:52:16,837 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 08:52:16,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883557790] [2020-09-25 08:52:16,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:52:16,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 08:52:16,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178748226] [2020-09-25 08:52:16,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:52:16,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:52:16,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:52:16,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:52:16,844 INFO L87 Difference]: Start difference. First operand 56 states and 69 transitions. Second operand 5 states. [2020-09-25 08:52:16,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:52:16,963 INFO L93 Difference]: Finished difference Result 107 states and 156 transitions. [2020-09-25 08:52:16,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:52:16,965 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2020-09-25 08:52:16,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:52:16,969 INFO L225 Difference]: With dead ends: 107 [2020-09-25 08:52:16,969 INFO L226 Difference]: Without dead ends: 60 [2020-09-25 08:52:16,975 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:52:16,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-25 08:52:16,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-09-25 08:52:16,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-09-25 08:52:17,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 79 transitions. [2020-09-25 08:52:17,004 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 79 transitions. Word has length 44 [2020-09-25 08:52:17,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:52:17,005 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 79 transitions. [2020-09-25 08:52:17,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:52:17,006 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 79 transitions. [2020-09-25 08:52:17,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-09-25 08:52:17,020 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:52:17,021 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:52:17,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:52:17,022 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:52:17,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:52:17,022 INFO L82 PathProgramCache]: Analyzing trace with hash 990403329, now seen corresponding path program 1 times [2020-09-25 08:52:17,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:52:17,023 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13516869] [2020-09-25 08:52:17,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:52:17,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:17,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:17,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:20,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:20,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 08:52:20,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:52:20,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3849 [2020-09-25 08:52:20,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:20,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:20,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:52:20,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 08:52:20,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-25 08:52:20,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:20,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:52:20,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:20,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:20,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:20,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:52:20,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:20,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:52:20,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:20,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:20,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:20,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:20,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:20,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:52:20,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 08:52:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:21,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:21,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:23,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:23,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-25 08:52:23,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:52:23,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2769 [2020-09-25 08:52:23,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:23,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:23,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:52:23,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:23,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-25 08:52:23,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:23,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:52:23,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:23,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:23,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:23,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 08:52:23,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:23,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 08:52:23,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:23,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:23,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:52:23,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:23,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 08:52:23,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:23,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:52:23,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:23,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:23,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:23,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 08:52:23,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:23,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 08:52:23,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:23,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:52:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:23,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 08:52:23,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:23,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:52:23,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:23,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:23,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:23,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 08:52:23,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:23,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:52:23,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:23,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:23,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:23,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:23,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:23,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:23,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:52:23,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:23,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:23,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:23,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:52:23,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:23,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:52:23,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:23,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:23,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:23,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:23,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:24,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:24,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 08:52:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:24,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:24,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:24,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:52:24,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:24,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:52:24,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:24,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:24,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:24,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:24,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:24,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:24,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-25 08:52:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:24,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:24,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:24,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 08:52:24,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:24,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 08:52:24,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:24,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:24,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:52:24,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:24,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 08:52:24,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:24,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:52:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:24,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:24,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:24,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:52:24,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:24,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:52:24,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:24,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:24,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:24,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:24,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:24,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:24,071 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 31 proven. 30 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-09-25 08:52:24,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [13516869] [2020-09-25 08:52:24,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:52:24,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 08:52:24,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890217937] [2020-09-25 08:52:24,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:52:24,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:52:24,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:52:24,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:52:24,075 INFO L87 Difference]: Start difference. First operand 60 states and 79 transitions. Second operand 7 states. [2020-09-25 08:52:24,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:52:24,218 INFO L93 Difference]: Finished difference Result 96 states and 147 transitions. [2020-09-25 08:52:24,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:52:24,219 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2020-09-25 08:52:24,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:52:24,223 INFO L225 Difference]: With dead ends: 96 [2020-09-25 08:52:24,223 INFO L226 Difference]: Without dead ends: 90 [2020-09-25 08:52:24,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:52:24,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-09-25 08:52:24,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-09-25 08:52:24,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-09-25 08:52:24,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 141 transitions. [2020-09-25 08:52:24,244 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 141 transitions. Word has length 92 [2020-09-25 08:52:24,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:52:24,245 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 141 transitions. [2020-09-25 08:52:24,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:52:24,245 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 141 transitions. [2020-09-25 08:52:24,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-25 08:52:24,249 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:52:24,250 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 11, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:52:24,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:52:24,250 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:52:24,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:52:24,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1454565455, now seen corresponding path program 2 times [2020-09-25 08:52:24,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:52:24,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1539839113] [2020-09-25 08:52:24,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:52:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:24,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:24,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:24,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:24,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:29,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:29,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-09-25 08:52:29,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:52:29,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 08:52:29,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:29,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:29,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 08:52:29,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 08:52:29,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-25 08:52:29,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:29,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:52:29,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:29,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:29,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:29,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:52:29,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:29,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:52:29,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:29,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:29,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:29,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:29,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:29,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:29,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 08:52:29,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:29,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:29,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:29,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:34,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:34,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 08:52:34,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:52:34,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 08:52:34,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:34,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:34,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 08:52:34,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 08:52:34,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 08:52:34,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:34,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:52:34,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:34,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:34,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:34,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:34,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:34,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:36,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:37,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:37,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:37,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:39,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:39,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 08:52:39,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 08:52:39,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 08:52:39,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:39,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:39,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 08:52:39,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:52:39,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 08:52:39,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:39,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:52:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:39,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:39,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:40,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:40,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 08:52:40,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:52:40,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 602 [2020-09-25 08:52:40,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:40,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:40,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:52:40,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:40,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 08:52:40,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:40,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:52:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:40,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:40,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:40,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:40,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 08:52:40,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:52:40,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 456 [2020-09-25 08:52:40,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:40,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:40,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 08:52:40,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:40,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 08:52:40,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:40,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:52:40,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:40,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:40,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:40,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 08:52:40,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:40,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 08:52:40,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:40,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:40,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:52:40,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:40,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:52:40,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:40,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:52:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:40,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:40,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:40,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:52:40,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:40,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 08:52:40,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:40,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:40,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:52:40,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:40,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:52:40,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:52:40,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 08:52:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:40,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:40,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:40,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:52:40,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:40,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:52:40,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:40,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:40,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:52:40,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:40,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:52:40,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:40,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-25 08:52:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:40,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:40,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:41,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:41,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 08:52:41,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:52:41,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 656 [2020-09-25 08:52:41,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:41,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:41,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:52:41,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:52:41,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 08:52:41,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:52:41,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:52:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:41,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:41,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:41,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:41,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 08:52:41,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:52:41,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 423 [2020-09-25 08:52:41,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:41,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:41,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:52:41,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:41,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 08:52:41,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:52:41,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:52:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:41,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:41,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:41,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 08:52:41,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:41,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 08:52:41,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:41,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:41,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:52:41,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:41,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 08:52:41,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:41,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:52:41,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:41,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:41,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:41,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:52:41,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:41,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:52:41,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:41,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:41,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:41,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:41,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:41,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:41,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 08:52:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:41,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:41,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:41,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:52:41,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:41,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 08:52:41,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:41,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:41,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:52:41,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:41,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:52:41,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:42,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-09-25 08:52:42,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:42,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:42,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:42,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 08:52:42,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:42,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 08:52:42,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:42,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:42,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:42,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-25 08:52:42,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:42,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:42,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:52:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:42,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:42,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:42,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 08:52:42,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:42,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 08:52:42,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:42,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:42,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:42,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:42,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:42,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:52:42,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:52:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:42,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:42,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:42,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 08:52:42,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:42,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:52:42,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:42,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:42,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:42,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:42,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:42,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:42,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:52:42,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:42,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:42,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:42,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:52:42,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:42,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:52:42,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:42,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:42,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:42,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:42,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:42,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:42,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 08:52:42,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:42,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:42,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:42,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:52:42,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:42,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:52:42,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:42,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:42,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:42,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:42,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:42,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:42,206 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 181 proven. 361 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2020-09-25 08:52:42,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1539839113] [2020-09-25 08:52:42,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:52:42,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 08:52:42,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685412846] [2020-09-25 08:52:42,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 08:52:42,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:52:42,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 08:52:42,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-09-25 08:52:42,209 INFO L87 Difference]: Start difference. First operand 90 states and 141 transitions. Second operand 12 states. [2020-09-25 08:52:42,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:52:42,618 INFO L93 Difference]: Finished difference Result 209 states and 435 transitions. [2020-09-25 08:52:42,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 08:52:42,621 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 179 [2020-09-25 08:52:42,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:52:42,626 INFO L225 Difference]: With dead ends: 209 [2020-09-25 08:52:42,629 INFO L226 Difference]: Without dead ends: 117 [2020-09-25 08:52:42,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-09-25 08:52:42,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-09-25 08:52:42,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 116. [2020-09-25 08:52:42,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-09-25 08:52:42,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 167 transitions. [2020-09-25 08:52:42,662 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 167 transitions. Word has length 179 [2020-09-25 08:52:42,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:52:42,663 INFO L479 AbstractCegarLoop]: Abstraction has 116 states and 167 transitions. [2020-09-25 08:52:42,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 08:52:42,663 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 167 transitions. [2020-09-25 08:52:42,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-25 08:52:42,665 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:52:42,666 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:52:42,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:52:42,666 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:52:42,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:52:42,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1778048969, now seen corresponding path program 3 times [2020-09-25 08:52:42,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:52:42,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1557748002] [2020-09-25 08:52:42,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:52:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:42,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:42,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:47,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:47,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-09-25 08:52:47,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:52:47,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 08:52:47,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:47,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:47,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 08:52:47,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-25 08:52:47,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 08:52:47,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:52:47,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:52:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:47,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:47,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:47,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:52:47,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:47,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:52:47,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:47,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:47,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:47,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:47,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:47,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:52:47,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 08:52:47,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:47,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:47,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:52,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:52,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 08:52:52,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:52:52,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:52:52,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:52,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:52,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 08:52:52,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 08:52:52,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 08:52:52,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:52:52,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:52:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:52,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:53,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:53,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-25 08:52:53,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:53,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 415 [2020-09-25 08:52:53,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:53,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:53,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 08:52:53,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 08:52:53,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 08:52:53,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:53,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:52:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:53,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:53,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:53,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 08:52:53,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:53,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-25 08:52:53,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:53,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:53,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 08:52:53,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:53,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 08:52:53,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:53,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:52:53,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:53,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:53,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:53,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 08:52:53,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:53,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-09-25 08:52:53,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:53,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:53,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 08:52:53,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:53,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 08:52:53,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:53,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:52:53,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:53,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:53,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:53,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 08:52:53,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:53,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 08:52:53,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:53,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:53,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:52:53,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:53,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 08:52:53,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:53,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:52:53,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:53,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:53,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:53,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:52:53,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:53,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:52:53,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:53,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:53,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:52:53,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:53,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:52:53,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:52:53,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 08:52:53,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:53,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:53,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:53,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:52:53,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:53,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:52:53,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:53,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:53,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:52:53,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:53,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:52:53,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:52:53,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-25 08:52:53,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:53,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:53,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:53,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 08:52:53,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:53,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 08:52:53,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:53,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:53,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:52:53,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 08:52:53,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 08:52:53,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:52:53,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:52:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:53,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:53,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:53,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:52:53,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:53,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:52:53,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:53,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:53,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:52:53,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:53,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:52:53,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:53,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-09-25 08:52:53,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:53,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:53,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:53,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 08:52:53,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:53,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:52:53,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:53,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:53,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:53,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 08:52:53,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:53,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:52:53,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:52:53,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:53,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:53,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:53,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:52:53,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:53,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:52:53,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:53,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:53,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:53,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:53,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:53,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:53,949 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 79 proven. 91 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2020-09-25 08:52:53,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1557748002] [2020-09-25 08:52:53,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:52:53,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 08:52:53,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489501537] [2020-09-25 08:52:53,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 08:52:53,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:52:53,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 08:52:53,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-09-25 08:52:53,951 INFO L87 Difference]: Start difference. First operand 116 states and 167 transitions. Second operand 13 states. [2020-09-25 08:52:54,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:52:54,491 INFO L93 Difference]: Finished difference Result 220 states and 340 transitions. [2020-09-25 08:52:54,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 08:52:54,492 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 121 [2020-09-25 08:52:54,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:52:54,497 INFO L225 Difference]: With dead ends: 220 [2020-09-25 08:52:54,497 INFO L226 Difference]: Without dead ends: 122 [2020-09-25 08:52:54,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=189, Invalid=681, Unknown=0, NotChecked=0, Total=870 [2020-09-25 08:52:54,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-09-25 08:52:54,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 116. [2020-09-25 08:52:54,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-09-25 08:52:54,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 159 transitions. [2020-09-25 08:52:54,518 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 159 transitions. Word has length 121 [2020-09-25 08:52:54,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:52:54,519 INFO L479 AbstractCegarLoop]: Abstraction has 116 states and 159 transitions. [2020-09-25 08:52:54,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 08:52:54,519 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 159 transitions. [2020-09-25 08:52:54,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-25 08:52:54,521 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:52:54,521 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 9, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:52:54,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 08:52:54,522 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:52:54,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:52:54,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1276982865, now seen corresponding path program 4 times [2020-09-25 08:52:54,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:52:54,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [540999603] [2020-09-25 08:52:54,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:52:54,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:54,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:54,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:59,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:59,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-25 08:52:59,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:52:59,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 08:52:59,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:59,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:59,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 08:52:59,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-09-25 08:52:59,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 08:52:59,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:52:59,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:52:59,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:59,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:59,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:59,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:52:59,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:59,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:52:59,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:59,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:59,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:59,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:59,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:59,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:52:59,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 08:52:59,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:59,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:59,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:04,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:04,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-09-25 08:53:04,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:53:04,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 08:53:04,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:04,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:04,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 08:53:04,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-09-25 08:53:04,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 08:53:04,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:53:04,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 08:53:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:04,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:04,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking...