/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_6-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:54:15,023 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:54:15,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:54:15,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:54:15,074 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:54:15,082 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:54:15,084 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:54:15,088 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:54:15,091 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:54:15,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:54:15,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:54:15,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:54:15,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:54:15,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:54:15,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:54:15,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:54:15,107 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:54:15,108 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:54:15,110 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:54:15,119 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:54:15,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:54:15,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:54:15,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:54:15,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:54:15,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:54:15,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:54:15,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:54:15,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:54:15,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:54:15,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:54:15,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:54:15,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:54:15,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:54:15,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:54:15,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:54:15,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:54:15,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:54:15,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:54:15,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:54:15,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:54:15,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:54:15,165 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 08:54:15,208 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:54:15,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:54:15,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:54:15,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:54:15,211 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:54:15,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:54:15,212 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:54:15,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:54:15,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:54:15,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:54:15,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:54:15,214 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:54:15,214 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:54:15,214 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:54:15,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:54:15,215 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:54:15,215 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:54:15,215 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:54:15,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:54:15,215 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:54:15,216 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:54:15,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:54:15,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:54:15,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:54:15,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:54:15,217 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:54:15,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:54:15,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:54:15,217 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:54:15,217 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:54:15,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:54:15,718 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:54:15,723 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:54:15,725 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:54:15,725 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:54:15,726 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_6-1.c [2020-09-25 08:54:15,823 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b9115f036/ad865f83d35d485d8400a41648c70b95/FLAG589d69f62 [2020-09-25 08:54:16,375 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:54:16,375 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_6-1.c [2020-09-25 08:54:16,384 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b9115f036/ad865f83d35d485d8400a41648c70b95/FLAG589d69f62 [2020-09-25 08:54:16,726 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b9115f036/ad865f83d35d485d8400a41648c70b95 [2020-09-25 08:54:16,740 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:54:16,745 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:54:16,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:54:16,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:54:16,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:54:16,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:54:16" (1/1) ... [2020-09-25 08:54:16,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dd2a798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:16, skipping insertion in model container [2020-09-25 08:54:16,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:54:16" (1/1) ... [2020-09-25 08:54:16,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:54:16,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:54:17,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:54:17,023 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:54:17,040 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:54:17,055 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:54:17,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:17 WrapperNode [2020-09-25 08:54:17,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:54:17,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:54:17,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:54:17,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:54:17,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:17" (1/1) ... [2020-09-25 08:54:17,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:17" (1/1) ... [2020-09-25 08:54:17,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:17" (1/1) ... [2020-09-25 08:54:17,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:17" (1/1) ... [2020-09-25 08:54:17,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:17" (1/1) ... [2020-09-25 08:54:17,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:17" (1/1) ... [2020-09-25 08:54:17,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:17" (1/1) ... [2020-09-25 08:54:17,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:54:17,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:54:17,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:54:17,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:54:17,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:17" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:54:17,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:54:17,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:54:17,248 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-25 08:54:17,248 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-25 08:54:17,248 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:54:17,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:54:17,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:54:17,249 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-25 08:54:17,249 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-25 08:54:17,249 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:54:17,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:54:17,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:54:17,543 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:54:17,543 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 08:54:17,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:54:17 BoogieIcfgContainer [2020-09-25 08:54:17,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:54:17,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:54:17,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:54:17,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:54:17,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:54:16" (1/3) ... [2020-09-25 08:54:17,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a2ff0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:54:17, skipping insertion in model container [2020-09-25 08:54:17,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:17" (2/3) ... [2020-09-25 08:54:17,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a2ff0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:54:17, skipping insertion in model container [2020-09-25 08:54:17,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:54:17" (3/3) ... [2020-09-25 08:54:17,600 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_6-1.c [2020-09-25 08:54:17,610 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:54:17,620 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:54:17,640 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:54:17,668 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:54:17,669 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:54:17,669 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:54:17,669 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:54:17,669 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:54:17,669 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:54:17,669 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:54:17,669 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:54:17,690 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-25 08:54:17,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 08:54:17,700 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:17,701 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:54:17,702 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:17,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:17,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-25 08:54:17,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:17,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1038223755] [2020-09-25 08:54:17,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:17,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:17,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:17,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:17,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:54:17,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:17,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 08:54:17,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:17,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:17,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:54:17,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:54:17,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:54:17,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:54:17,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:54:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:17,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:17,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:17,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:54:17,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:17,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:54:17,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:17,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:17,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:17,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:17,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:17,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:17,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:54:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:17,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:18,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:18,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:18,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:18,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 08:54:18,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:18,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:18,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:54:18,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:54:18,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:54:18,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:18,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:54:18,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1038223755] [2020-09-25 08:54:18,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:54:18,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:54:18,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284205350] [2020-09-25 08:54:18,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:54:18,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:54:18,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:54:18,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:54:18,086 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-25 08:54:18,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:54:18,228 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-25 08:54:18,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:54:18,230 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 08:54:18,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:54:18,245 INFO L225 Difference]: With dead ends: 58 [2020-09-25 08:54:18,246 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 08:54:18,250 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:54:18,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 08:54:18,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 08:54:18,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 08:54:18,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 08:54:18,313 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-25 08:54:18,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:54:18,314 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 08:54:18,314 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:54:18,314 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 08:54:18,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 08:54:18,317 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:18,317 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:54:18,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:54:18,318 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:18,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:18,318 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-25 08:54:18,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:18,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1192733387] [2020-09-25 08:54:18,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:18,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:18,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:18,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:18,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 08:54:18,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:18,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 08:54:18,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:18,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:18,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:54:18,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:54:18,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:54:18,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:18,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:54:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:18,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:18,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:18,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:54:18,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:18,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:54:18,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:18,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:18,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:18,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:18,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:18,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:18,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:54:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:18,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:18,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:18,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:18,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:18,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 08:54:18,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:18,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:18,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:54:18,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:54:18,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:18,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:18,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:54:18,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1192733387] [2020-09-25 08:54:18,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:54:18,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:54:18,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193671931] [2020-09-25 08:54:18,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:54:18,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:54:18,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:54:18,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:54:18,536 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-25 08:54:18,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:54:18,624 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-25 08:54:18,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:54:18,625 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 08:54:18,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:54:18,627 INFO L225 Difference]: With dead ends: 50 [2020-09-25 08:54:18,628 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 08:54:18,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:54:18,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 08:54:18,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 08:54:18,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 08:54:18,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 08:54:18,642 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-25 08:54:18,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:54:18,643 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 08:54:18,644 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:54:18,644 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 08:54:18,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 08:54:18,647 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:18,647 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:54:18,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:54:18,648 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:18,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:18,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-25 08:54:18,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:18,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [576336186] [2020-09-25 08:54:18,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:18,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:18,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:18,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:18,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:19,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:19,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 08:54:19,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:54:19,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 671 [2020-09-25 08:54:19,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:19,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:19,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:19,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:54:19,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:54:19,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:54:19,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:54:19,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:19,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:19,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:19,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:54:19,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:19,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:54:19,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:19,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:19,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:19,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:19,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:19,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:19,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:54:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:19,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:19,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:19,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:19,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:19,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 08:54:19,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:54:19,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-09-25 08:54:19,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:19,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:19,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:19,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:54:19,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 08:54:19,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:19,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:19,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:19,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:19,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:19,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:19,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:19,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:54:19,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:19,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:19,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:19,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:19,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:54:19,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:54:19,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:54:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:19,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:19,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:19,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:19,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:19,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 08:54:19,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:19,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:19,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:54:19,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:19,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:19,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:19,755 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 08:54:19,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [576336186] [2020-09-25 08:54:19,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:54:19,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:54:19,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463960971] [2020-09-25 08:54:19,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:54:19,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:54:19,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:54:19,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:54:19,759 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-09-25 08:54:19,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:54:19,914 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2020-09-25 08:54:19,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:54:19,915 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-25 08:54:19,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:54:19,917 INFO L225 Difference]: With dead ends: 58 [2020-09-25 08:54:19,918 INFO L226 Difference]: Without dead ends: 52 [2020-09-25 08:54:19,918 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:54:19,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-25 08:54:19,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2020-09-25 08:54:19,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 08:54:19,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-09-25 08:54:19,931 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 33 [2020-09-25 08:54:19,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:54:19,931 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-09-25 08:54:19,932 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:54:19,932 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-09-25 08:54:19,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 08:54:19,934 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:19,935 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:54:19,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:54:19,935 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:19,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:19,936 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-25 08:54:19,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:19,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1827465331] [2020-09-25 08:54:19,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:19,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:19,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:19,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:20,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:20,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:20,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:20,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 08:54:20,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:54:20,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 558 [2020-09-25 08:54:20,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:20,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:20,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:20,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:54:20,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 08:54:20,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:20,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:54:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:20,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:20,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:20,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:54:20,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:20,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:54:20,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:20,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:20,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:20,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:20,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:20,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:54:20,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:54:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:20,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:20,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:20,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:20,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:21,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:21,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 08:54:21,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:54:21,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 467 [2020-09-25 08:54:21,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:21,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:21,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:21,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:54:21,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 08:54:21,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:21,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:21,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:21,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:21,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:21,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:21,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:21,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 08:54:21,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:21,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:21,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:54:21,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:21,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:54:21,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:21,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:54:21,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:21,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:21,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:21,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:21,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:21,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 08:54:21,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:21,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:21,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:21,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:21,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:21,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:21,102 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 08:54:21,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1827465331] [2020-09-25 08:54:21,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:54:21,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 08:54:21,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639503527] [2020-09-25 08:54:21,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:54:21,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:54:21,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:54:21,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:54:21,105 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 7 states. [2020-09-25 08:54:21,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:54:21,239 INFO L93 Difference]: Finished difference Result 110 states and 146 transitions. [2020-09-25 08:54:21,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:54:21,240 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 08:54:21,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:54:21,242 INFO L225 Difference]: With dead ends: 110 [2020-09-25 08:54:21,242 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 08:54:21,244 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:54:21,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 08:54:21,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-09-25 08:54:21,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 08:54:21,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2020-09-25 08:54:21,256 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 35 [2020-09-25 08:54:21,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:54:21,256 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2020-09-25 08:54:21,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:54:21,257 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2020-09-25 08:54:21,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 08:54:21,260 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:21,260 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:54:21,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:54:21,260 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:21,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:21,261 INFO L82 PathProgramCache]: Analyzing trace with hash 758565477, now seen corresponding path program 1 times [2020-09-25 08:54:21,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:21,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1320954953] [2020-09-25 08:54:21,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:21,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:21,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:21,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:21,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:21,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:21,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:21,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:21,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:26,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:26,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 08:54:26,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 08:54:26,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 08:54:26,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:26,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:26,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:26,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:54:26,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 08:54:26,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:26,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:54:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:26,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:26,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:26,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:54:26,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:26,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:54:26,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:26,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:26,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:26,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:26,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:26,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:26,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:54:26,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:26,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:26,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:26,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:26,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:26,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:26,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:26,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:30,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:30,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 08:54:30,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 08:54:30,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3968 [2020-09-25 08:54:30,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:30,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:30,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:54:30,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:54:30,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 08:54:30,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:30,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:30,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:30,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:30,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:30,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:30,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 08:54:30,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:54:30,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-09-25 08:54:30,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:30,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:30,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:54:30,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:30,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 08:54:30,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:30,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:30,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:30,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:30,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:30,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:30,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:30,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:54:30,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:30,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:30,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:30,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:30,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:54:30,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:30,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:54:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:30,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:30,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:30,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:30,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:30,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:54:30,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:30,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:30,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:54:30,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:30,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:30,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:30,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 08:54:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:30,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:30,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:30,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:30,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:30,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:54:30,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:30,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:30,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:30,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:30,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:30,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:30,630 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 08:54:30,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1320954953] [2020-09-25 08:54:30,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:54:30,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 08:54:30,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490353992] [2020-09-25 08:54:30,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:54:30,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:54:30,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:54:30,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:54:30,637 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand 9 states. [2020-09-25 08:54:30,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:54:30,828 INFO L93 Difference]: Finished difference Result 78 states and 105 transitions. [2020-09-25 08:54:30,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 08:54:30,829 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-09-25 08:54:30,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:54:30,832 INFO L225 Difference]: With dead ends: 78 [2020-09-25 08:54:30,832 INFO L226 Difference]: Without dead ends: 72 [2020-09-25 08:54:30,838 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-25 08:54:30,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-25 08:54:30,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 62. [2020-09-25 08:54:30,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-25 08:54:30,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 80 transitions. [2020-09-25 08:54:30,864 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 80 transitions. Word has length 51 [2020-09-25 08:54:30,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:54:30,866 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 80 transitions. [2020-09-25 08:54:30,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:54:30,866 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 80 transitions. [2020-09-25 08:54:30,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 08:54:30,875 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:30,876 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:54:30,878 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:54:30,878 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:30,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:30,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1208671938, now seen corresponding path program 1 times [2020-09-25 08:54:30,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:30,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1055468390] [2020-09-25 08:54:30,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:30,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:30,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:30,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:31,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:31,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:31,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:31,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:31,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:33,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:33,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:33,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:33,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:33,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:34,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:34,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:35,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:35,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 08:54:35,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 08:54:35,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 08:54:35,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:35,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:35,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:54:35,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:54:35,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 08:54:35,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:35,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:54:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:35,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:35,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:35,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:54:35,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:35,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:54:35,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:35,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:35,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:35,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:35,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:35,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:35,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:54:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:35,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:35,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:35,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:36,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:36,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:36,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:36,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:36,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:36,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:36,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:37,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:40,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:40,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 08:54:40,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 08:54:40,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 08:54:40,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:40,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:40,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 08:54:40,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 08:54:40,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 08:54:40,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:40,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:40,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:40,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:40,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:41,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:41,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 08:54:41,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:54:41,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-09-25 08:54:41,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:41,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:41,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:41,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:41,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 08:54:41,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:41,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:41,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:41,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:41,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:41,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:41,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 08:54:41,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:41,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:41,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:54:41,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:41,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:54:41,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:41,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:54:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:41,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:41,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:41,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:41,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:41,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:54:41,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:41,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:41,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:41,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:41,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:41,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:41,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 08:54:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:41,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:41,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:41,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:41,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:41,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:41,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:41,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:41,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:41,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 08:54:41,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 08:54:41,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 669 [2020-09-25 08:54:41,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:41,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:41,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:41,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:54:41,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 08:54:41,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:42,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:42,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:42,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:42,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:42,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:42,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 08:54:42,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:42,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:42,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:54:42,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:42,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:54:42,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:42,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:54:42,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:42,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:42,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:42,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:42,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:42,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:54:42,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:42,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:42,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:42,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:42,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:42,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:42,148 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 22 proven. 26 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-25 08:54:42,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1055468390] [2020-09-25 08:54:42,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:54:42,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 08:54:42,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561632748] [2020-09-25 08:54:42,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 08:54:42,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:54:42,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 08:54:42,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-25 08:54:42,151 INFO L87 Difference]: Start difference. First operand 62 states and 80 transitions. Second operand 12 states. [2020-09-25 08:54:42,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:54:42,486 INFO L93 Difference]: Finished difference Result 168 states and 272 transitions. [2020-09-25 08:54:42,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 08:54:42,487 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 71 [2020-09-25 08:54:42,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:54:42,490 INFO L225 Difference]: With dead ends: 168 [2020-09-25 08:54:42,490 INFO L226 Difference]: Without dead ends: 112 [2020-09-25 08:54:42,493 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2020-09-25 08:54:42,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-09-25 08:54:42,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 98. [2020-09-25 08:54:42,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-25 08:54:42,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 139 transitions. [2020-09-25 08:54:42,512 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 139 transitions. Word has length 71 [2020-09-25 08:54:42,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:54:42,513 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 139 transitions. [2020-09-25 08:54:42,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 08:54:42,513 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 139 transitions. [2020-09-25 08:54:42,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 08:54:42,515 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:42,515 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:54:42,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 08:54:42,516 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:42,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:42,516 INFO L82 PathProgramCache]: Analyzing trace with hash 452106143, now seen corresponding path program 1 times [2020-09-25 08:54:42,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:42,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [125466791] [2020-09-25 08:54:42,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:42,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:42,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:42,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:42,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:42,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:43,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:43,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:43,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:47,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:47,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-25 08:54:47,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 08:54:47,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:54:47,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:47,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:47,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 08:54:47,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 08:54:47,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 08:54:47,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:47,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:54:47,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:47,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:47,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:47,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:54:47,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:47,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:54:47,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:47,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:47,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:47,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:47,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:47,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:47,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:54:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:47,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:47,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:47,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:47,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:47,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:47,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:48,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:52,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:52,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 08:54:52,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 08:54:52,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 08:54:52,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:52,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:52,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 08:54:52,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 08:54:52,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 08:54:52,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:52,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:52,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:52,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:52,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:52,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:52,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:53,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:53,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:53,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:55,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:55,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 08:54:55,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 08:54:55,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2798 [2020-09-25 08:54:55,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:55,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:55,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:55,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:55,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 08:54:55,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:55,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:55,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:55,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:55,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:55,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 08:54:55,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:54:55,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 08:54:55,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:55,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:55,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:55,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:55,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 08:54:55,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:55,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:55,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:55,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:55,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:55,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:55,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:54:55,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:55,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:55,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:55,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:55,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:55,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:55,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:54:55,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:55,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:55,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:55,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:55,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:55,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:54:55,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:55,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:55,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:55,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:55,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:55,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:55,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 08:54:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:55,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:55,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:55,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:55,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:55,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 08:54:55,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:55,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:55,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:54:55,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:55,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:54:55,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:55,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 08:54:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:55,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:55,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:55,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:55,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:55,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:55,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 08:54:55,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:54:55,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-09-25 08:54:55,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:55,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:55,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:55,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:54:55,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 08:54:55,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:55,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:55,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:55,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:55,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:55,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:55,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:55,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:54:55,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:55,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:55,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:55,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:55,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:55,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:55,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:54:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:55,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:55,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:55,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:55,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:55,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:54:55,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 08:54:55,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:55,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:55,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:54:55,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:55,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:54:55,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:55,772 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 41 proven. 23 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-09-25 08:54:55,773 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [125466791] [2020-09-25 08:54:55,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:54:55,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 08:54:55,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604924286] [2020-09-25 08:54:55,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 08:54:55,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:54:55,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 08:54:55,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:54:55,775 INFO L87 Difference]: Start difference. First operand 98 states and 139 transitions. Second operand 11 states. [2020-09-25 08:54:56,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:54:56,098 INFO L93 Difference]: Finished difference Result 250 states and 431 transitions. [2020-09-25 08:54:56,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 08:54:56,099 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 87 [2020-09-25 08:54:56,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:54:56,103 INFO L225 Difference]: With dead ends: 250 [2020-09-25 08:54:56,103 INFO L226 Difference]: Without dead ends: 158 [2020-09-25 08:54:56,105 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-09-25 08:54:56,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-09-25 08:54:56,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 138. [2020-09-25 08:54:56,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-09-25 08:54:56,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 204 transitions. [2020-09-25 08:54:56,135 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 204 transitions. Word has length 87 [2020-09-25 08:54:56,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:54:56,136 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 204 transitions. [2020-09-25 08:54:56,136 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 08:54:56,136 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 204 transitions. [2020-09-25 08:54:56,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-25 08:54:56,140 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:56,140 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:54:56,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 08:54:56,140 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:56,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:56,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1053318756, now seen corresponding path program 1 times [2020-09-25 08:54:56,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:56,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1790659866] [2020-09-25 08:54:56,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:56,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:56,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:56,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:56,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:56,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:56,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:56,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:56,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:56,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:56,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:56,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:59,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:59,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:59,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:59,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:00,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:00,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:01,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:01,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-25 08:55:01,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-09-25 08:55:01,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 08:55:01,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:01,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:01,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:55:01,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 08:55:01,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 08:55:01,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:01,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:55:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:01,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:01,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:01,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:55:01,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:01,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:55:01,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:01,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:01,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:55:01,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:01,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:55:01,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:55:01,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:55:01,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:01,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:01,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:01,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:01,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:01,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:01,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:01,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:02,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:02,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:02,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:04,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:04,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:04,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:04,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:04,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:04,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:04,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:06,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:06,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-25 08:55:06,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-09-25 08:55:06,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 08:55:06,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:06,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:06,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:55:06,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-25 08:55:06,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 08:55:06,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:55:06,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:55:06,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:06,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:06,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:06,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:06,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:06,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:06,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:06,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:06,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:08,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:08,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:08,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:08,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking...