/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_i25_o25-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:01:44,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:01:44,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:01:44,081 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:01:44,081 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:01:44,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:01:44,084 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:01:44,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:01:44,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:01:44,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:01:44,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:01:44,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:01:44,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:01:44,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:01:44,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:01:44,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:01:44,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:01:44,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:01:44,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:01:44,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:01:44,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:01:44,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:01:44,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:01:44,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:01:44,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:01:44,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:01:44,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:01:44,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:01:44,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:01:44,131 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:01:44,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:01:44,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:01:44,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:01:44,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:01:44,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:01:44,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:01:44,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:01:44,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:01:44,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:01:44,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:01:44,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:01:44,143 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 10:01:44,205 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:01:44,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:01:44,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:01:44,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:01:44,207 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:01:44,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:01:44,207 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:01:44,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:01:44,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:01:44,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:01:44,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:01:44,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:01:44,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:01:44,208 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:01:44,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:01:44,209 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:01:44,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:01:44,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:01:44,209 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:01:44,209 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:01:44,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:01:44,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:01:44,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:01:44,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:01:44,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:01:44,215 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:01:44,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:01:44,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:01:44,215 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:01:44,216 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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 10:01:44,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:01:44,693 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:01:44,698 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:01:44,699 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:01:44,700 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:01:44,701 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i25_o25-1.c [2020-09-25 10:01:44,797 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/65c6d30f6/f98b8e9d77ad4ac0a0d82973b0c6b035/FLAGb0d1067a3 [2020-09-25 10:01:45,320 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:01:45,321 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_i25_o25-1.c [2020-09-25 10:01:45,330 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/65c6d30f6/f98b8e9d77ad4ac0a0d82973b0c6b035/FLAGb0d1067a3 [2020-09-25 10:01:45,665 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/65c6d30f6/f98b8e9d77ad4ac0a0d82973b0c6b035 [2020-09-25 10:01:45,679 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:01:45,685 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:01:45,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:01:45,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:01:45,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:01:45,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:01:45" (1/1) ... [2020-09-25 10:01:45,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13482720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:01:45, skipping insertion in model container [2020-09-25 10:01:45,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:01:45" (1/1) ... [2020-09-25 10:01:45,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:01:45,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:01:45,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:01:45,951 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:01:45,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:01:45,989 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:01:45,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:01:45 WrapperNode [2020-09-25 10:01:45,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:01:45,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:01:45,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:01:45,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:01:46,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:01:45" (1/1) ... [2020-09-25 10:01:46,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:01:45" (1/1) ... [2020-09-25 10:01:46,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:01:45" (1/1) ... [2020-09-25 10:01:46,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:01:45" (1/1) ... [2020-09-25 10:01:46,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:01:45" (1/1) ... [2020-09-25 10:01:46,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:01:45" (1/1) ... [2020-09-25 10:01:46,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:01:45" (1/1) ... [2020-09-25 10:01:46,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:01:46,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:01:46,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:01:46,024 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:01:46,025 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:01:45" (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 10:01:46,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:01:46,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:01:46,182 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-25 10:01:46,182 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:01:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:01:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:01:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-25 10:01:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:01:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:01:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:01:46,373 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:01:46,373 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 10:01:46,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:01:46 BoogieIcfgContainer [2020-09-25 10:01:46,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:01:46,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:01:46,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:01:46,384 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:01:46,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:01:45" (1/3) ... [2020-09-25 10:01:46,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c5d0432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:01:46, skipping insertion in model container [2020-09-25 10:01:46,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:01:45" (2/3) ... [2020-09-25 10:01:46,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c5d0432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:01:46, skipping insertion in model container [2020-09-25 10:01:46,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:01:46" (3/3) ... [2020-09-25 10:01:46,389 INFO L109 eAbstractionObserver]: Analyzing ICFG id_i25_o25-1.c [2020-09-25 10:01:46,402 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:01:46,412 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:01:46,436 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:01:46,466 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:01:46,466 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:01:46,466 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:01:46,466 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:01:46,466 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:01:46,466 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:01:46,467 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:01:46,467 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:01:46,488 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-09-25 10:01:46,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 10:01:46,495 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:01:46,497 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:01:46,497 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:01:46,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:01:46,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1037734449, now seen corresponding path program 1 times [2020-09-25 10:01:46,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:01:46,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1938108871] [2020-09-25 10:01:46,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:01:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:46,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:46,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:46,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:01:46,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:46,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 10:01:46,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:46,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:46,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:01:46,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:01:46,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:01:46,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 10:01:46,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:01:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:46,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:46,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:46,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:01:46,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:46,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:01:46,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:46,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:46,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:01:46,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:46,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:01:46,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:46,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:01:46,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:46,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:46,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:46,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:01:46,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:46,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 10:01:46,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:46,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:46,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:01:46,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:01:46,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:01:46,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:46,848 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 10:01:46,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1938108871] [2020-09-25 10:01:46,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:01:46,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 10:01:46,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069314037] [2020-09-25 10:01:46,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 10:01:46,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:01:46,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 10:01:46,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:01:46,930 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 5 states. [2020-09-25 10:01:47,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:01:47,028 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-25 10:01:47,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 10:01:47,031 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 10:01:47,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:01:47,044 INFO L225 Difference]: With dead ends: 37 [2020-09-25 10:01:47,045 INFO L226 Difference]: Without dead ends: 23 [2020-09-25 10:01:47,049 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 10:01:47,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-09-25 10:01:47,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-09-25 10:01:47,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-09-25 10:01:47,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-09-25 10:01:47,103 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 16 [2020-09-25 10:01:47,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:01:47,104 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-09-25 10:01:47,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 10:01:47,105 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-09-25 10:01:47,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-25 10:01:47,107 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:01:47,107 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:01:47,107 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:01:47,108 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:01:47,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:01:47,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1478812441, now seen corresponding path program 1 times [2020-09-25 10:01:47,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:01:47,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [518540630] [2020-09-25 10:01:47,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:01:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:47,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:47,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:47,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 10:01:47,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:47,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-09-25 10:01:47,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:47,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:47,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:01:47,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:01:47,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 10:01:47,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:47,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:01:47,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:47,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:47,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:47,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:01:47,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:47,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:01:47,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:47,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:47,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:01:47,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:47,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:01:47,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:47,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:01:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:47,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:47,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:47,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 10:01:47,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:47,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 10:01:47,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:47,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:47,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:01:47,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:01:47,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 10:01:47,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:47,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:47,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:47,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:47,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:01:47,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:47,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 10:01:47,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:47,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:47,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:01:47,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:47,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:01:47,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:47,604 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 10:01:47,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [518540630] [2020-09-25 10:01:47,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:01:47,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 10:01:47,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408295910] [2020-09-25 10:01:47,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 10:01:47,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:01:47,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 10:01:47,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:01:47,609 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 7 states. [2020-09-25 10:01:47,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:01:47,667 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-09-25 10:01:47,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 10:01:47,668 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-09-25 10:01:47,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:01:47,670 INFO L225 Difference]: With dead ends: 34 [2020-09-25 10:01:47,670 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 10:01:47,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 10:01:47,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 10:01:47,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 10:01:47,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 10:01:47,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2020-09-25 10:01:47,679 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 24 [2020-09-25 10:01:47,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:01:47,680 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2020-09-25 10:01:47,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 10:01:47,680 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-09-25 10:01:47,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 10:01:47,682 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:01:47,682 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:01:47,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:01:47,682 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:01:47,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:01:47,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1463730447, now seen corresponding path program 2 times [2020-09-25 10:01:47,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:01:47,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1968637160] [2020-09-25 10:01:47,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:01:47,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:47,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:47,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:47,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 10:01:47,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:47,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-09-25 10:01:47,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:47,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:47,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:01:47,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:01:47,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 10:01:47,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:47,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:01:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:47,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:47,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:47,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:01:47,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:47,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:01:47,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:47,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:47,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:01:47,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:47,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:01:47,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:47,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:01:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:47,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:48,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:48,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 10:01:48,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:48,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 10:01:48,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:48,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:48,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:01:48,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:01:48,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 10:01:48,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:48,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:48,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:48,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:48,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:48,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 10:01:48,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:48,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 10:01:48,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:48,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:48,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:01:48,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:48,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 10:01:48,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:48,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:48,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:48,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:48,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:48,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:01:48,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:48,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:01:48,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:48,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:48,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:01:48,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:48,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:01:48,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:48,174 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 10:01:48,175 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1968637160] [2020-09-25 10:01:48,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:01:48,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 10:01:48,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839763998] [2020-09-25 10:01:48,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:01:48,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:01:48,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:01:48,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:01:48,177 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 8 states. [2020-09-25 10:01:48,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:01:48,246 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-25 10:01:48,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 10:01:48,247 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2020-09-25 10:01:48,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:01:48,248 INFO L225 Difference]: With dead ends: 39 [2020-09-25 10:01:48,248 INFO L226 Difference]: Without dead ends: 33 [2020-09-25 10:01:48,249 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 10:01:48,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-25 10:01:48,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-09-25 10:01:48,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-25 10:01:48,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-09-25 10:01:48,256 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 32 [2020-09-25 10:01:48,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:01:48,257 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-09-25 10:01:48,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:01:48,257 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-09-25 10:01:48,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 10:01:48,259 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:01:48,259 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:01:48,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:01:48,259 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:01:48,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:01:48,260 INFO L82 PathProgramCache]: Analyzing trace with hash 23346727, now seen corresponding path program 3 times [2020-09-25 10:01:48,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:01:48,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [697297969] [2020-09-25 10:01:48,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:01:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:48,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:48,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:48,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 10:01:48,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:48,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-25 10:01:48,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:48,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:48,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:01:48,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:01:48,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:01:48,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:01:48,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:01:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:48,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:48,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:48,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:01:48,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:48,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:01:48,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:48,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:48,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:01:48,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:48,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:01:48,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:48,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:01:48,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:48,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:48,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:48,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 10:01:48,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:48,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-25 10:01:48,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:48,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:48,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:01:48,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:01:48,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 10:01:48,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:48,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:48,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:48,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:48,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 10:01:48,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:48,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 10:01:48,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:48,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:48,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:01:48,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:48,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:01:48,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:48,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:48,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:48,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:48,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:48,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 10:01:48,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:48,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 10:01:48,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:48,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:48,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:01:48,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:48,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 10:01:48,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:48,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:48,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:48,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:48,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:48,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:01:48,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:48,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:01:48,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:48,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:48,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:01:48,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:48,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:01:48,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:48,880 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 10:01:48,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [697297969] [2020-09-25 10:01:48,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:01:48,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 10:01:48,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905177050] [2020-09-25 10:01:48,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 10:01:48,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:01:48,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 10:01:48,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-25 10:01:48,883 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 9 states. [2020-09-25 10:01:48,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:01:48,973 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2020-09-25 10:01:48,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 10:01:48,974 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 40 [2020-09-25 10:01:48,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:01:48,976 INFO L225 Difference]: With dead ends: 44 [2020-09-25 10:01:48,976 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 10:01:48,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 10:01:48,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 10:01:48,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-25 10:01:48,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-25 10:01:48,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-25 10:01:48,985 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 40 [2020-09-25 10:01:48,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:01:48,986 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-25 10:01:48,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 10:01:48,986 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-25 10:01:48,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-25 10:01:48,988 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:01:48,988 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:01:48,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 10:01:48,989 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:01:48,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:01:48,989 INFO L82 PathProgramCache]: Analyzing trace with hash -649675855, now seen corresponding path program 4 times [2020-09-25 10:01:48,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:01:48,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [466383854] [2020-09-25 10:01:48,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:01:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:49,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:49,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:49,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 10:01:49,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:49,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-09-25 10:01:49,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:49,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:49,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 10:01:49,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:01:49,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 10:01:49,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:49,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:01:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:49,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:49,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:49,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:01:49,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:49,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:01:49,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:49,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:49,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:01:49,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:49,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:01:49,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:49,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:01:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:49,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:49,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:49,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 10:01:49,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:49,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-09-25 10:01:49,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:49,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:49,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 10:01:49,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:01:49,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 10:01:49,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:01:49,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:49,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:49,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:49,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:49,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 10:01:49,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:49,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-25 10:01:49,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:49,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:49,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 10:01:49,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:49,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 10:01:49,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:49,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:49,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:49,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:49,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 10:01:49,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:49,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 10:01:49,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:49,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:49,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:01:49,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:49,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:01:49,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:49,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:49,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:49,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:49,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:49,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 10:01:49,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:49,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 10:01:49,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:49,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:49,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:01:49,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:49,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 10:01:49,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:49,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:49,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:49,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:49,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:01:49,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:49,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:01:49,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:49,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:49,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:01:49,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:49,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:01:49,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:49,903 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 10:01:49,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [466383854] [2020-09-25 10:01:49,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:01:49,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 10:01:49,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084756123] [2020-09-25 10:01:49,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 10:01:49,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:01:49,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 10:01:49,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:01:49,906 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 10 states. [2020-09-25 10:01:50,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:01:50,002 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-09-25 10:01:50,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 10:01:50,003 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 48 [2020-09-25 10:01:50,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:01:50,005 INFO L225 Difference]: With dead ends: 49 [2020-09-25 10:01:50,005 INFO L226 Difference]: Without dead ends: 43 [2020-09-25 10:01:50,006 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-25 10:01:50,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-25 10:01:50,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-09-25 10:01:50,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-25 10:01:50,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2020-09-25 10:01:50,013 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 48 [2020-09-25 10:01:50,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:01:50,013 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2020-09-25 10:01:50,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 10:01:50,014 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2020-09-25 10:01:50,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 10:01:50,016 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:01:50,016 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:01:50,016 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 10:01:50,016 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:01:50,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:01:50,017 INFO L82 PathProgramCache]: Analyzing trace with hash 899977063, now seen corresponding path program 5 times [2020-09-25 10:01:50,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:01:50,017 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [82023849] [2020-09-25 10:01:50,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:01:50,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:50,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:50,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:50,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 10:01:50,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:50,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-09-25 10:01:50,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:50,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:50,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 10:01:50,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:01:50,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 10:01:50,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:01:50,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:01:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:50,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:50,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:50,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:01:50,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:50,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:01:50,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:50,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:50,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:01:50,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:50,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:01:50,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:50,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:01:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:50,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:50,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:50,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 10:01:50,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:50,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269 [2020-09-25 10:01:50,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:50,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:50,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 10:01:50,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:01:50,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 10:01:50,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:50,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:50,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:50,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:50,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 10:01:50,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:50,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-09-25 10:01:50,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:50,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:50,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 10:01:50,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:50,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 10:01:50,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:50,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:50,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:50,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:51,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:51,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 10:01:51,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:51,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-25 10:01:51,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:51,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:51,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 10:01:51,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:51,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 10:01:51,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:51,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:51,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:51,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:51,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:51,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 10:01:51,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:51,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 10:01:51,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:51,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:51,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:01:51,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:51,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:01:51,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:51,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:51,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:51,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:51,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:51,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 10:01:51,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:51,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 10:01:51,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:51,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:51,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:01:51,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:51,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 10:01:51,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:51,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:51,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:51,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:51,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:51,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:01:51,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:51,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:01:51,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:51,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:51,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:01:51,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:51,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:01:51,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:51,304 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 10 proven. 62 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-09-25 10:01:51,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [82023849] [2020-09-25 10:01:51,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:01:51,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 10:01:51,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970517840] [2020-09-25 10:01:51,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 10:01:51,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:01:51,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 10:01:51,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-25 10:01:51,306 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 11 states. [2020-09-25 10:01:51,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:01:51,405 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2020-09-25 10:01:51,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 10:01:51,406 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2020-09-25 10:01:51,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:01:51,408 INFO L225 Difference]: With dead ends: 54 [2020-09-25 10:01:51,408 INFO L226 Difference]: Without dead ends: 48 [2020-09-25 10:01:51,409 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2020-09-25 10:01:51,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-25 10:01:51,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-25 10:01:51,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-25 10:01:51,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-09-25 10:01:51,416 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 56 [2020-09-25 10:01:51,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:01:51,416 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-09-25 10:01:51,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 10:01:51,416 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-09-25 10:01:51,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 10:01:51,418 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:01:51,418 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:01:51,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 10:01:51,418 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:01:51,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:01:51,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1000802417, now seen corresponding path program 6 times [2020-09-25 10:01:51,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:01:51,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253739563] [2020-09-25 10:01:51,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:01:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:51,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:51,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:51,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:01:51,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:51,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 361 [2020-09-25 10:01:51,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:51,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:51,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 10:01:51,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:01:51,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 10:01:51,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:01:51,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:01:51,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:51,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:51,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:51,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:01:51,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:51,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:01:51,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:51,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:51,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:01:51,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:51,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:01:51,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:51,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:01:51,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:51,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:52,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:52,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 10:01:52,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:52,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 316 [2020-09-25 10:01:52,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:52,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:52,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 10:01:52,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:01:52,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 10:01:52,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:52,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:52,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:52,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:52,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 10:01:52,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:52,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-09-25 10:01:52,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:52,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:52,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 10:01:52,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:52,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 10:01:52,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:52,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:52,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:52,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:52,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:52,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 10:01:52,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:52,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-09-25 10:01:52,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:52,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:52,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 10:01:52,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:52,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 10:01:52,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:52,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:52,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:52,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:52,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 10:01:52,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:52,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-25 10:01:52,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:52,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:52,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 10:01:52,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:52,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 10:01:52,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:52,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:52,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:52,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:52,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 10:01:52,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:52,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 10:01:52,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:53,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:53,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:01:53,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:53,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:01:53,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:01:53,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:53,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:53,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:53,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:53,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 10:01:53,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:53,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 10:01:53,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:53,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:53,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:01:53,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:53,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 10:01:53,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:01:53,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:53,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:53,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:53,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:01:53,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:53,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:01:53,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:53,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:53,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:01:53,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:53,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:01:53,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:53,219 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 10 proven. 103 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-09-25 10:01:53,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1253739563] [2020-09-25 10:01:53,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:01:53,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 10:01:53,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447304110] [2020-09-25 10:01:53,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 10:01:53,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:01:53,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 10:01:53,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-09-25 10:01:53,225 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 13 states. [2020-09-25 10:01:53,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:01:53,378 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-25 10:01:53,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 10:01:53,379 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 64 [2020-09-25 10:01:53,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:01:53,381 INFO L225 Difference]: With dead ends: 59 [2020-09-25 10:01:53,382 INFO L226 Difference]: Without dead ends: 53 [2020-09-25 10:01:53,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=247, Unknown=0, NotChecked=0, Total=380 [2020-09-25 10:01:53,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-09-25 10:01:53,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-09-25 10:01:53,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-25 10:01:53,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2020-09-25 10:01:53,389 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 64 [2020-09-25 10:01:53,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:01:53,390 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2020-09-25 10:01:53,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 10:01:53,390 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2020-09-25 10:01:53,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 10:01:53,391 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:01:53,391 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:01:53,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 10:01:53,392 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:01:53,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:01:53,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1977618599, now seen corresponding path program 7 times [2020-09-25 10:01:53,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:01:53,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [443345564] [2020-09-25 10:01:53,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:01:53,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:53,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:53,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:53,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-25 10:01:53,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:53,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 487 [2020-09-25 10:01:53,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:53,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 10:01:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:01:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 10:01:53,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:01:53,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:01:53,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:53,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:53,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:53,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:01:53,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:53,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:01:53,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:53,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:53,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:01:53,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:53,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:01:53,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:53,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:01:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:53,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:54,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:54,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 10:01:54,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:54,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 408 [2020-09-25 10:01:54,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:54,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:54,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 10:01:54,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:01:54,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 10:01:54,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:54,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:54,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:54,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:54,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 10:01:54,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:54,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 372 [2020-09-25 10:01:54,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:54,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 10:01:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 10:01:54,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:54,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:54,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:55,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:55,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 10:01:55,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:55,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-09-25 10:01:55,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:55,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:55,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 10:01:55,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:55,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 10:01:55,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:55,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:55,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:55,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:55,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:55,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 10:01:55,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:55,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-09-25 10:01:55,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:55,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:55,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 10:01:55,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:55,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 10:01:55,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:55,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:55,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:55,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:55,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:55,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 10:01:55,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:55,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-25 10:01:55,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:55,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:55,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 10:01:55,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:55,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 10:01:55,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:55,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:55,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:55,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:55,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:55,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 10:01:55,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:55,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 10:01:55,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:55,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:55,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:01:55,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:55,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:01:55,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:55,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:55,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:55,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:55,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 10:01:55,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:55,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 10:01:55,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:55,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:55,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:01:55,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:55,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 10:01:55,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:55,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:55,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:55,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:55,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:55,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:01:55,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:55,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:01:55,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:55,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:55,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:01:55,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:55,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:01:55,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:55,694 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 16 proven. 131 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-09-25 10:01:55,695 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [443345564] [2020-09-25 10:01:55,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:01:55,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 10:01:55,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430578015] [2020-09-25 10:01:55,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 10:01:55,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:01:55,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 10:01:55,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-25 10:01:55,697 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 13 states. [2020-09-25 10:01:55,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:01:55,833 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-09-25 10:01:55,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 10:01:55,834 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 72 [2020-09-25 10:01:55,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:01:55,836 INFO L225 Difference]: With dead ends: 64 [2020-09-25 10:01:55,836 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 10:01:55,837 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-09-25 10:01:55,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 10:01:55,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-25 10:01:55,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 10:01:55,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-09-25 10:01:55,843 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 72 [2020-09-25 10:01:55,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:01:55,844 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-09-25 10:01:55,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 10:01:55,844 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-09-25 10:01:55,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-25 10:01:55,845 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:01:55,846 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:01:55,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 10:01:55,846 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:01:55,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:01:55,846 INFO L82 PathProgramCache]: Analyzing trace with hash 555623729, now seen corresponding path program 8 times [2020-09-25 10:01:55,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:01:55,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [17924971] [2020-09-25 10:01:55,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:01:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:55,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:56,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:56,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-25 10:01:56,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:56,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 501 [2020-09-25 10:01:56,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:56,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:56,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 10:01:56,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:01:56,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 10:01:56,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:56,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:01:56,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:56,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:56,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:56,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:01:56,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:56,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:01:56,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:56,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:56,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:01:56,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:56,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:01:56,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:56,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:01:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:56,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:56,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:56,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 10:01:56,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:56,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 486 [2020-09-25 10:01:56,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:56,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:56,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 10:01:56,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:01:56,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 10:01:56,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:01:56,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:56,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:56,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:57,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:57,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 10:01:57,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:57,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 425 [2020-09-25 10:01:57,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:57,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:57,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 10:01:57,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:57,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 10:01:57,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:57,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:57,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:57,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:57,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:57,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 10:01:57,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:57,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 355 [2020-09-25 10:01:57,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:57,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:57,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 10:01:57,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:57,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 10:01:57,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:57,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:57,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:57,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:58,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:58,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 10:01:58,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:58,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-09-25 10:01:58,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:58,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:58,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 10:01:58,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:58,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 10:01:58,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:58,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:58,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:58,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:58,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:58,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 10:01:58,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:58,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-09-25 10:01:58,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:58,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:58,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 10:01:58,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:58,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 10:01:58,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:58,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:58,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:58,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:58,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:58,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 10:01:58,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:58,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 10:01:58,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:58,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:58,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 10:01:58,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:58,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 10:01:58,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:58,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:58,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:58,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:58,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 10:01:58,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:58,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 10:01:58,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:58,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:58,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:01:58,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:58,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:01:58,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:58,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:58,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:58,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:58,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 10:01:58,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:58,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 10:01:58,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:58,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:58,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:01:58,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:58,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 10:01:58,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:58,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:01:58,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:58,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:58,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:58,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:01:58,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:58,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:01:58,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:58,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:58,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:01:58,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:58,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:01:58,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:01:58,769 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 12 proven. 184 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-09-25 10:01:58,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [17924971] [2020-09-25 10:01:58,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:01:58,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 10:01:58,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790841811] [2020-09-25 10:01:58,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 10:01:58,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:01:58,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 10:01:58,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-09-25 10:01:58,779 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 15 states. [2020-09-25 10:01:58,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:01:58,975 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2020-09-25 10:01:58,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 10:01:58,975 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 80 [2020-09-25 10:01:58,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:01:58,978 INFO L225 Difference]: With dead ends: 69 [2020-09-25 10:01:58,978 INFO L226 Difference]: Without dead ends: 63 [2020-09-25 10:01:58,979 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=194, Invalid=358, Unknown=0, NotChecked=0, Total=552 [2020-09-25 10:01:58,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-25 10:01:58,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-09-25 10:01:58,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 10:01:58,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2020-09-25 10:01:58,992 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 80 [2020-09-25 10:01:58,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:01:58,993 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2020-09-25 10:01:58,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 10:01:58,993 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2020-09-25 10:01:58,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-25 10:01:58,995 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:01:58,995 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:01:58,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 10:01:58,996 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:01:58,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:01:58,996 INFO L82 PathProgramCache]: Analyzing trace with hash 777699815, now seen corresponding path program 9 times [2020-09-25 10:01:58,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:01:58,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [23227377] [2020-09-25 10:01:58,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:01:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:59,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:59,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:59,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 10:01:59,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:59,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 589 [2020-09-25 10:01:59,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:59,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:59,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 10:01:59,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:01:59,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 10:01:59,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:01:59,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:01:59,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:59,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:59,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:59,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:01:59,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:59,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:01:59,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:59,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:59,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:01:59,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:59,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:01:59,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:01:59,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:01:59,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:59,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:00,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:00,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 10:02:00,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:00,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 547 [2020-09-25 10:02:00,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:00,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:00,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 10:02:00,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:02:00,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 10:02:00,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:00,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:00,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:00,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:00,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:00,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 10:02:00,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:00,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 483 [2020-09-25 10:02:00,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:00,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:00,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 10:02:00,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:00,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 10:02:00,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:00,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:00,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:01,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:01,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 10:02:01,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:01,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 398 [2020-09-25 10:02:01,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:01,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:01,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 10:02:01,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:01,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 10:02:01,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:01,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:01,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:01,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:01,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 10:02:01,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:01,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-09-25 10:02:01,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:01,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:01,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 10:02:01,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:01,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 10:02:01,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:01,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:01,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:01,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:01,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 10:02:01,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:01,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-25 10:02:01,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:01,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:01,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 10:02:01,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:01,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 10:02:01,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:01,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:01,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:01,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:01,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 10:02:01,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:01,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-09-25 10:02:01,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:01,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:01,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 10:02:01,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:01,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 10:02:01,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:01,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:01,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:01,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:02,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:02,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 10:02:02,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:02,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 10:02:02,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:02,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:02,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 10:02:02,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:02,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 10:02:02,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:02,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:02,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:02,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:02,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:02,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 10:02:02,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:02,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 10:02:02,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:02,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:02,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:02:02,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:02,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:02:02,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:02,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:02,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:02,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:02,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 10:02:02,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:02,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 10:02:02,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:02,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:02,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:02:02,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:02,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 10:02:02,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:02,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:02,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:02,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:02,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:02,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:02:02,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:02,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:02:02,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:02,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:02,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:02:02,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:02,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:02:02,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:02,339 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 26 proven. 214 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-09-25 10:02:02,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [23227377] [2020-09-25 10:02:02,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:02:02,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 10:02:02,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330695379] [2020-09-25 10:02:02,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 10:02:02,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:02:02,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 10:02:02,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-25 10:02:02,342 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 15 states. [2020-09-25 10:02:02,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:02:02,518 INFO L93 Difference]: Finished difference Result 74 states and 75 transitions. [2020-09-25 10:02:02,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 10:02:02,518 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 88 [2020-09-25 10:02:02,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:02:02,520 INFO L225 Difference]: With dead ends: 74 [2020-09-25 10:02:02,520 INFO L226 Difference]: Without dead ends: 68 [2020-09-25 10:02:02,525 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2020-09-25 10:02:02,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-25 10:02:02,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-09-25 10:02:02,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-25 10:02:02,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2020-09-25 10:02:02,536 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 88 [2020-09-25 10:02:02,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:02:02,537 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2020-09-25 10:02:02,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 10:02:02,537 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2020-09-25 10:02:02,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-09-25 10:02:02,542 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:02:02,542 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:02:02,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 10:02:02,543 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:02:02,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:02:02,543 INFO L82 PathProgramCache]: Analyzing trace with hash 2145915377, now seen corresponding path program 10 times [2020-09-25 10:02:02,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:02:02,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [835349024] [2020-09-25 10:02:02,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:02:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:02,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:03,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:03,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-25 10:02:03,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:03,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 704 [2020-09-25 10:02:03,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:03,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:03,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 10:02:03,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:02:03,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 10:02:03,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:03,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:02:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:03,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:03,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:03,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:02:03,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:03,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:02:03,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:03,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:03,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:02:03,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:03,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:02:03,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:03,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:02:03,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:03,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:03,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:03,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 10:02:03,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:03,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 592 [2020-09-25 10:02:03,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:03,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:03,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 10:02:03,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:02:03,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-25 10:02:03,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:03,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:03,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:03,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:04,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:04,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 10:02:04,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:04,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 563 [2020-09-25 10:02:04,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:04,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:04,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 10:02:04,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:04,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 10:02:04,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:04,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:04,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:04,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:05,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:05,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 10:02:05,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:05,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 538 [2020-09-25 10:02:05,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:05,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:05,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 10:02:05,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:05,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 10:02:05,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:05,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:05,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:05,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:05,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 10:02:05,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:05,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 420 [2020-09-25 10:02:05,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:05,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:05,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 10:02:05,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:05,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 10:02:05,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:02:05,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:05,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:05,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:05,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 10:02:05,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:05,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-09-25 10:02:05,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:05,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:05,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 10:02:05,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:05,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 10:02:05,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:05,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:05,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:05,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:06,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:06,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 10:02:06,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:06,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-25 10:02:06,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:06,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:06,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 10:02:06,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:06,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 10:02:06,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:06,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:06,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:06,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:06,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 10:02:06,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:06,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-09-25 10:02:06,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:06,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:06,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 10:02:06,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:06,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 10:02:06,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:06,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:06,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:06,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:06,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 10:02:06,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:06,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 10:02:06,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:06,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:06,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 10:02:06,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:06,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 10:02:06,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:06,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:06,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:06,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:06,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 10:02:06,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:06,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 10:02:06,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:06,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:06,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:02:06,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:06,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:02:06,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:02:06,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:06,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:06,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:06,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 10:02:06,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:06,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 10:02:06,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:06,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:06,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:02:06,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:06,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 10:02:06,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:06,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:06,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:06,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:06,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:02:06,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:06,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:02:06,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:06,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:06,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:02:06,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:06,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:02:06,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:06,819 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 27 proven. 267 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2020-09-25 10:02:06,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [835349024] [2020-09-25 10:02:06,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:02:06,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 10:02:06,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958909226] [2020-09-25 10:02:06,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 10:02:06,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:02:06,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 10:02:06,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-09-25 10:02:06,823 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 16 states. [2020-09-25 10:02:07,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:02:07,001 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-25 10:02:07,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 10:02:07,001 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 96 [2020-09-25 10:02:07,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:02:07,002 INFO L225 Difference]: With dead ends: 79 [2020-09-25 10:02:07,003 INFO L226 Difference]: Without dead ends: 73 [2020-09-25 10:02:07,004 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=250, Invalid=452, Unknown=0, NotChecked=0, Total=702 [2020-09-25 10:02:07,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-25 10:02:07,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-09-25 10:02:07,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-25 10:02:07,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2020-09-25 10:02:07,011 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 96 [2020-09-25 10:02:07,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:02:07,011 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2020-09-25 10:02:07,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 10:02:07,011 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2020-09-25 10:02:07,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-25 10:02:07,013 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:02:07,013 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:02:07,013 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 10:02:07,013 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:02:07,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:02:07,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1180214055, now seen corresponding path program 11 times [2020-09-25 10:02:07,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:02:07,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2098850147] [2020-09-25 10:02:07,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:02:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:07,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:07,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:07,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-09-25 10:02:07,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:07,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 781 [2020-09-25 10:02:07,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:07,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:07,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 10:02:07,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:02:07,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 10:02:07,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:07,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:02:07,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:07,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:07,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:07,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:02:07,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:07,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:02:07,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:07,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:07,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:02:07,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:07,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:02:07,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:07,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:02:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:07,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:08,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:08,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 10:02:08,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:08,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 760 [2020-09-25 10:02:08,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:08,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:08,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 10:02:08,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:02:08,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 10:02:08,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:08,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:08,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:08,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:09,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:09,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 10:02:09,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:09,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 568 [2020-09-25 10:02:09,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:09,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:09,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 10:02:09,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:09,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 10:02:09,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:09,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:09,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:09,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:09,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:09,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 10:02:09,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:09,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 521 [2020-09-25 10:02:09,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:09,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:09,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 10:02:09,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:09,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 10:02:09,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:09,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:09,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:09,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:10,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:10,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 10:02:10,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:10,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 431 [2020-09-25 10:02:10,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:10,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:10,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 10:02:10,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:10,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 10:02:10,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:10,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:10,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:10,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:10,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 10:02:10,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:10,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 333 [2020-09-25 10:02:10,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:10,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:10,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 10:02:10,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:10,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 10:02:10,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:10,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:10,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:10,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:10,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 10:02:10,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:10,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-09-25 10:02:10,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:10,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:10,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 10:02:10,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:10,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 10:02:10,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:10,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:10,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:11,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:11,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 10:02:11,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:11,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-09-25 10:02:11,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:11,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:11,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 10:02:11,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:11,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 10:02:11,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:11,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:11,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:11,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:11,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 10:02:11,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:11,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 10:02:11,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:11,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:11,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 10:02:11,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:11,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 10:02:11,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:11,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:11,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:11,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:11,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 10:02:11,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:11,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 10:02:11,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:11,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:11,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 10:02:11,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:11,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 10:02:11,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:11,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:11,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:11,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:11,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 10:02:11,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:11,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 10:02:11,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:11,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:11,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:02:11,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:11,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:02:11,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:11,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:11,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:11,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:11,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:11,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 10:02:11,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:11,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 10:02:11,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:11,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:11,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:02:11,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:11,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 10:02:11,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:11,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:11,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:11,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:11,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:11,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:02:11,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:11,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:02:11,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:11,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:11,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:02:11,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:11,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:02:11,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:11,703 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 11 proven. 297 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-09-25 10:02:11,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2098850147] [2020-09-25 10:02:11,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:02:11,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 10:02:11,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239749547] [2020-09-25 10:02:11,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 10:02:11,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:02:11,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 10:02:11,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-09-25 10:02:11,706 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand 17 states. [2020-09-25 10:02:11,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:02:11,906 INFO L93 Difference]: Finished difference Result 84 states and 85 transitions. [2020-09-25 10:02:11,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 10:02:11,907 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 104 [2020-09-25 10:02:11,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:02:11,908 INFO L225 Difference]: With dead ends: 84 [2020-09-25 10:02:11,908 INFO L226 Difference]: Without dead ends: 78 [2020-09-25 10:02:11,909 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2020-09-25 10:02:11,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-25 10:02:11,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-09-25 10:02:11,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-25 10:02:11,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 79 transitions. [2020-09-25 10:02:11,915 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 79 transitions. Word has length 104 [2020-09-25 10:02:11,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:02:11,916 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 79 transitions. [2020-09-25 10:02:11,916 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 10:02:11,916 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 79 transitions. [2020-09-25 10:02:11,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-25 10:02:11,917 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:02:11,917 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:02:11,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 10:02:11,918 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:02:11,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:02:11,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1287598415, now seen corresponding path program 12 times [2020-09-25 10:02:11,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:02:11,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1092440331] [2020-09-25 10:02:11,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:02:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:11,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:12,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:12,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-25 10:02:12,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:12,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 820 [2020-09-25 10:02:12,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:12,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:12,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 10:02:12,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:02:12,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 10:02:12,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:12,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:02:12,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:12,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:12,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:12,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:02:12,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:12,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:02:12,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:12,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:12,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:02:12,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:12,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:02:12,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:12,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:02:12,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:12,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:13,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:13,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 10:02:13,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:13,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 912 [2020-09-25 10:02:13,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:13,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:13,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 10:02:13,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:02:13,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-09-25 10:02:13,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:13,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:13,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:14,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:14,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 10:02:14,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:14,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 655 [2020-09-25 10:02:14,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:14,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:14,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 10:02:14,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:14,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 10:02:14,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:14,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:14,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:15,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:15,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 10:02:15,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:15,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 564 [2020-09-25 10:02:15,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:15,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:15,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 10:02:15,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:15,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 10:02:15,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:15,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:15,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:15,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:15,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:15,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 10:02:15,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:15,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 457 [2020-09-25 10:02:15,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:15,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:15,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 10:02:15,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:15,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 10:02:15,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:15,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:15,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:15,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:15,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 10:02:15,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:15,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 403 [2020-09-25 10:02:15,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:15,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:15,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 10:02:15,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:15,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 10:02:15,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:15,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:15,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:15,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:16,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:16,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 10:02:16,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:16,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 313 [2020-09-25 10:02:16,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:16,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:16,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 10:02:16,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:16,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 10:02:16,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:16,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:16,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:16,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:16,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 10:02:16,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:16,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-09-25 10:02:16,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:16,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:16,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 10:02:16,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:16,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 10:02:16,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:02:16,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:16,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:16,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:16,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 10:02:16,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:16,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-09-25 10:02:16,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:16,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:16,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 10:02:16,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:16,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 10:02:16,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:16,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:16,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:17,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:17,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 10:02:17,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:17,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-09-25 10:02:17,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:17,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:17,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 10:02:17,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:17,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 10:02:17,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:02:17,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:17,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:17,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:17,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 10:02:17,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:17,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-25 10:02:17,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:17,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:17,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 10:02:17,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:17,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 10:02:17,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:02:17,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:17,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:17,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:17,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:17,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 10:02:17,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:17,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 10:02:17,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:17,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:17,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:02:17,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:17,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:02:17,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:02:17,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:17,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:17,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:17,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 10:02:17,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:17,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 10:02:17,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:17,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:17,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:02:17,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:17,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 10:02:17,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:02:17,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:17,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:17,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:17,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:17,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:02:17,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:17,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:02:17,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:17,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:17,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:02:17,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:17,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:02:17,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 10:02:17,649 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 22 proven. 374 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-09-25 10:02:17,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1092440331] [2020-09-25 10:02:17,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:02:17,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-25 10:02:17,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125679891] [2020-09-25 10:02:17,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-25 10:02:17,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:02:17,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-25 10:02:17,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306 [2020-09-25 10:02:17,654 INFO L87 Difference]: Start difference. First operand 78 states and 79 transitions. Second operand 18 states. [2020-09-25 10:02:17,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:02:17,854 INFO L93 Difference]: Finished difference Result 89 states and 90 transitions. [2020-09-25 10:02:17,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 10:02:17,854 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 112 [2020-09-25 10:02:17,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:02:17,855 INFO L225 Difference]: With dead ends: 89 [2020-09-25 10:02:17,855 INFO L226 Difference]: Without dead ends: 83 [2020-09-25 10:02:17,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=597, Unknown=0, NotChecked=0, Total=930 [2020-09-25 10:02:17,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-09-25 10:02:17,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-09-25 10:02:17,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-09-25 10:02:17,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 84 transitions. [2020-09-25 10:02:17,869 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 84 transitions. Word has length 112 [2020-09-25 10:02:17,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:02:17,874 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 84 transitions. [2020-09-25 10:02:17,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-25 10:02:17,875 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 84 transitions. [2020-09-25 10:02:17,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-09-25 10:02:17,876 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:02:17,876 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:02:17,876 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 10:02:17,876 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:02:17,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:02:17,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1612559463, now seen corresponding path program 13 times [2020-09-25 10:02:17,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:02:17,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [792625452] [2020-09-25 10:02:17,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:02:17,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:17,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:18,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:18,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-25 10:02:18,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:18,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 888 [2020-09-25 10:02:18,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:18,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:18,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-25 10:02:18,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:02:18,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 10:02:18,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:18,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:02:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:18,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:18,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:18,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:02:18,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:18,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:02:18,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:18,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:18,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:02:18,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:18,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:02:18,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:18,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:02:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:18,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:19,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:19,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 10:02:19,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:19,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 859 [2020-09-25 10:02:19,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:19,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:19,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-25 10:02:19,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:02:19,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-09-25 10:02:19,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:19,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:19,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:20,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:20,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 10:02:20,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:20,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 897 [2020-09-25 10:02:20,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:20,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:20,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 10:02:20,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:20,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 10:02:20,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:20,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:20,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:20,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:21,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:21,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 10:02:21,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:21,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 672 [2020-09-25 10:02:21,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:21,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:21,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 10:02:21,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:21,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 10:02:21,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:21,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:21,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:21,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:21,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 10:02:21,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:21,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 554 [2020-09-25 10:02:21,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:21,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:21,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 10:02:21,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:21,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 10:02:21,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:21,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:21,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:22,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:22,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 10:02:22,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:22,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 477 [2020-09-25 10:02:22,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:22,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:22,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 10:02:22,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:22,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 10:02:22,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:22,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:22,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:22,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:22,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 10:02:22,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:22,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 394 [2020-09-25 10:02:22,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:22,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:22,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 10:02:22,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:22,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 10:02:22,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:22,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:22,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:23,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:23,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 10:02:23,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:23,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-09-25 10:02:23,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:23,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:23,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 10:02:23,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:23,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 10:02:23,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:23,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:23,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:23,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:23,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 10:02:23,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:23,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-09-25 10:02:23,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:23,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:23,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 10:02:23,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:23,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 10:02:23,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:23,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:23,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:23,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:23,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 10:02:23,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:23,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-09-25 10:02:23,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:23,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:23,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 10:02:23,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:23,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 10:02:23,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:23,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:23,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:23,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:23,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:23,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 10:02:23,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:23,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 10:02:23,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:23,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:23,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 10:02:23,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:23,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 10:02:23,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:23,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:23,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:24,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:24,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 10:02:24,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:24,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 10:02:24,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:24,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:24,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 10:02:24,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:24,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 10:02:24,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:24,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:24,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:24,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:24,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:24,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 10:02:24,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:24,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 10:02:24,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:24,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:24,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:02:24,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:24,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:02:24,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:24,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:24,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:24,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:24,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:24,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 10:02:24,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:24,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 10:02:24,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:24,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:24,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:02:24,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:24,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 10:02:24,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:24,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:24,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:24,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:24,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:24,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:02:24,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:24,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:02:24,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:24,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:24,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:02:24,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:24,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:02:24,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:24,384 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 25 proven. 488 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2020-09-25 10:02:24,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [792625452] [2020-09-25 10:02:24,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:02:24,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 10:02:24,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725454823] [2020-09-25 10:02:24,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 10:02:24,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:02:24,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 10:02:24,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=247, Unknown=0, NotChecked=0, Total=380 [2020-09-25 10:02:24,387 INFO L87 Difference]: Start difference. First operand 83 states and 84 transitions. Second operand 20 states. [2020-09-25 10:02:24,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:02:24,655 INFO L93 Difference]: Finished difference Result 94 states and 95 transitions. [2020-09-25 10:02:24,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 10:02:24,656 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 120 [2020-09-25 10:02:24,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:02:24,657 INFO L225 Difference]: With dead ends: 94 [2020-09-25 10:02:24,657 INFO L226 Difference]: Without dead ends: 88 [2020-09-25 10:02:24,658 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=399, Invalid=723, Unknown=0, NotChecked=0, Total=1122 [2020-09-25 10:02:24,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-25 10:02:24,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2020-09-25 10:02:24,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-09-25 10:02:24,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 89 transitions. [2020-09-25 10:02:24,667 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 89 transitions. Word has length 120 [2020-09-25 10:02:24,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:02:24,668 INFO L479 AbstractCegarLoop]: Abstraction has 88 states and 89 transitions. [2020-09-25 10:02:24,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-25 10:02:24,668 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 89 transitions. [2020-09-25 10:02:24,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-09-25 10:02:24,670 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:02:24,671 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:02:24,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 10:02:24,671 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:02:24,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:02:24,671 INFO L82 PathProgramCache]: Analyzing trace with hash 996432753, now seen corresponding path program 14 times [2020-09-25 10:02:24,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:02:24,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [699921353] [2020-09-25 10:02:24,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:02:24,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:24,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:25,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:25,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-09-25 10:02:25,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:25,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 995 [2020-09-25 10:02:25,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:25,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:25,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-25 10:02:25,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:02:25,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 10:02:25,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:25,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:02:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:25,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:25,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:25,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:02:25,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:25,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:02:25,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:25,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:25,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:02:25,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:25,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:02:25,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:25,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:02:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:25,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:26,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:26,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 10:02:26,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:26,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-25 10:02:26,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:26,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:26,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-25 10:02:26,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:02:26,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-09-25 10:02:26,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:26,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:26,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:27,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:27,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 10:02:27,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:27,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 937 [2020-09-25 10:02:27,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:27,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:27,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 10:02:27,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:27,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-25 10:02:27,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:27,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:27,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:28,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:28,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 10:02:28,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:28,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 791 [2020-09-25 10:02:28,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:28,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:28,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 10:02:28,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:28,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 10:02:28,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:28,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:28,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:29,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:29,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 10:02:29,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:29,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 690 [2020-09-25 10:02:29,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:29,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:29,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 10:02:29,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:29,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 10:02:29,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:29,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:29,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:29,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:29,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 10:02:29,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:29,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 589 [2020-09-25 10:02:29,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:29,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:29,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 10:02:29,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:29,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 10:02:29,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:29,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:29,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:29,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:30,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:30,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 10:02:30,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:30,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 477 [2020-09-25 10:02:30,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:30,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:30,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 10:02:30,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:30,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 10:02:30,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:30,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:30,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:30,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:30,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:30,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 10:02:30,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:30,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 392 [2020-09-25 10:02:30,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:30,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:30,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 10:02:30,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:30,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 10:02:30,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:30,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:30,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:30,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:31,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:31,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 10:02:31,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:31,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-09-25 10:02:31,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:31,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:31,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 10:02:31,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:31,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 10:02:31,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:31,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:31,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:31,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:31,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 10:02:31,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:31,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-25 10:02:31,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:31,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:31,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 10:02:31,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:31,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 10:02:31,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:31,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:31,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:31,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:31,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 10:02:31,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:31,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-09-25 10:02:31,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:31,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:31,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 10:02:31,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:31,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 10:02:31,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:31,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:31,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:31,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:31,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:31,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 10:02:31,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:31,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-25 10:02:31,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:31,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:31,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 10:02:31,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:31,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 10:02:31,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:31,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:31,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:31,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:31,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 10:02:31,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:31,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 10:02:31,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:31,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:31,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 10:02:31,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:31,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 10:02:31,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:32,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:32,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:32,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:32,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:32,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 10:02:32,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:32,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 10:02:32,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:32,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:32,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:02:32,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:32,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:02:32,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:32,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:32,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:32,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:32,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 10:02:32,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:32,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 10:02:32,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:32,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:32,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:02:32,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:32,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 10:02:32,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:32,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:32,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:32,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:32,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:02:32,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:32,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:02:32,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:32,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:32,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:02:32,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:32,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:02:32,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:32,290 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 42 proven. 545 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2020-09-25 10:02:32,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [699921353] [2020-09-25 10:02:32,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:02:32,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 10:02:32,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707394197] [2020-09-25 10:02:32,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 10:02:32,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:02:32,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 10:02:32,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=237, Unknown=0, NotChecked=0, Total=380 [2020-09-25 10:02:32,292 INFO L87 Difference]: Start difference. First operand 88 states and 89 transitions. Second operand 20 states. [2020-09-25 10:02:32,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:02:32,575 INFO L93 Difference]: Finished difference Result 99 states and 100 transitions. [2020-09-25 10:02:32,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 10:02:32,576 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 128 [2020-09-25 10:02:32,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:02:32,577 INFO L225 Difference]: With dead ends: 99 [2020-09-25 10:02:32,577 INFO L226 Difference]: Without dead ends: 93 [2020-09-25 10:02:32,578 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=428, Invalid=762, Unknown=0, NotChecked=0, Total=1190 [2020-09-25 10:02:32,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-09-25 10:02:32,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-09-25 10:02:32,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-25 10:02:32,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 94 transitions. [2020-09-25 10:02:32,589 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 94 transitions. Word has length 128 [2020-09-25 10:02:32,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:02:32,589 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 94 transitions. [2020-09-25 10:02:32,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-25 10:02:32,590 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 94 transitions. [2020-09-25 10:02:32,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-25 10:02:32,592 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:02:32,592 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:02:32,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 10:02:32,592 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:02:32,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:02:32,593 INFO L82 PathProgramCache]: Analyzing trace with hash 418248103, now seen corresponding path program 15 times [2020-09-25 10:02:32,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:02:32,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2073497291] [2020-09-25 10:02:32,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:02:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:32,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:33,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:33,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-09-25 10:02:33,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:33,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1182 [2020-09-25 10:02:33,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:33,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:33,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-25 10:02:33,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:02:33,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 10:02:33,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:33,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:02:33,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:33,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:33,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:33,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:02:33,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:33,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:02:33,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:33,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:33,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:02:33,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:33,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:02:33,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:33,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:02:33,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:33,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:34,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:34,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-09-25 10:02:34,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:34,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1113 [2020-09-25 10:02:34,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:34,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:34,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-25 10:02:34,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:02:34,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-09-25 10:02:34,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:34,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:34,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:35,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:36,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:36,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 10:02:36,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:36,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1068 [2020-09-25 10:02:36,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:36,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:36,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-25 10:02:36,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:36,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-09-25 10:02:36,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:36,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:36,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:36,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:36,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:36,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 10:02:36,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:36,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 900 [2020-09-25 10:02:36,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:36,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:36,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 10:02:36,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:36,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-25 10:02:36,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:37,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:37,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:37,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:37,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:37,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 10:02:37,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:37,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 766 [2020-09-25 10:02:37,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:37,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:37,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 10:02:37,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:37,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 10:02:37,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:37,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:37,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:38,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:38,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 10:02:38,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:38,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 674 [2020-09-25 10:02:38,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:38,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:38,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 10:02:38,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:38,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 10:02:38,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:02:38,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:38,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:38,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:39,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:39,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 10:02:39,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:39,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 532 [2020-09-25 10:02:39,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:39,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:39,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 10:02:39,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:39,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 10:02:39,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:39,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:39,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:39,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:39,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 10:02:39,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:39,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 465 [2020-09-25 10:02:39,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:39,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:39,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 10:02:39,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:39,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 10:02:39,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:02:39,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:02:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:02:39,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:02:40,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:02:40,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 10:02:40,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:02:40,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 384 [2020-09-25 10:02:40,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:02:40,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:02:40,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 10:02:40,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:02:40,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 10:02:40,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0